CVE-2024-26703 (GCVE-0-2024-26703)
Vulnerability from cvelistv5 – Published: 2024-04-03 14:55 – Updated: 2026-05-11 20:02
VLAI
EPSS
VEX
Title
tracing/timerlat: Move hrtimer_init to timerlat_fd open()
Summary
In the Linux kernel, the following vulnerability has been resolved:
tracing/timerlat: Move hrtimer_init to timerlat_fd open()
Currently, the timerlat's hrtimer is initialized at the first read of
timerlat_fd, and destroyed at close(). It works, but it causes an error
if the user program open() and close() the file without reading.
Here's an example:
# echo NO_OSNOISE_WORKLOAD > /sys/kernel/debug/tracing/osnoise/options
# echo timerlat > /sys/kernel/debug/tracing/current_tracer
# cat <<EOF > ./timerlat_load.py
# !/usr/bin/env python3
timerlat_fd = open("/sys/kernel/tracing/osnoise/per_cpu/cpu0/timerlat_fd", 'r')
timerlat_fd.close();
EOF
# ./taskset -c 0 ./timerlat_load.py
<BOOM>
BUG: kernel NULL pointer dereference, address: 0000000000000010
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0
Oops: 0000 [#1] PREEMPT SMP NOPTI
CPU: 1 PID: 2673 Comm: python3 Not tainted 6.6.13-200.fc39.x86_64 #1
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-1.fc39 04/01/2014
RIP: 0010:hrtimer_active+0xd/0x50
Code: 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 48 8b 57 30 <8b> 42 10 a8 01 74 09 f3 90 8b 42 10 a8 01 75 f7 80 7f 38 00 75 1d
RSP: 0018:ffffb031009b7e10 EFLAGS: 00010286
RAX: 000000000002db00 RBX: ffff9118f786db08 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff9117a0e64400 RDI: ffff9118f786db08
RBP: ffff9118f786db80 R08: ffff9117a0ddd420 R09: ffff9117804d4f70
R10: 0000000000000000 R11: 0000000000000000 R12: ffff9118f786db08
R13: ffff91178fdd5e20 R14: ffff9117840978c0 R15: 0000000000000000
FS: 00007f2ffbab1740(0000) GS:ffff9118f7840000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000010 CR3: 00000001b402e000 CR4: 0000000000750ee0
PKRU: 55555554
Call Trace:
<TASK>
? __die+0x23/0x70
? page_fault_oops+0x171/0x4e0
? srso_alias_return_thunk+0x5/0x7f
? avc_has_extended_perms+0x237/0x520
? exc_page_fault+0x7f/0x180
? asm_exc_page_fault+0x26/0x30
? hrtimer_active+0xd/0x50
hrtimer_cancel+0x15/0x40
timerlat_fd_release+0x48/0xe0
__fput+0xf5/0x290
__x64_sys_close+0x3d/0x80
do_syscall_64+0x60/0x90
? srso_alias_return_thunk+0x5/0x7f
? __x64_sys_ioctl+0x72/0xd0
? srso_alias_return_thunk+0x5/0x7f
? syscall_exit_to_user_mode+0x2b/0x40
? srso_alias_return_thunk+0x5/0x7f
? do_syscall_64+0x6c/0x90
? srso_alias_return_thunk+0x5/0x7f
? exit_to_user_mode_prepare+0x142/0x1f0
? srso_alias_return_thunk+0x5/0x7f
? syscall_exit_to_user_mode+0x2b/0x40
? srso_alias_return_thunk+0x5/0x7f
? do_syscall_64+0x6c/0x90
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7f2ffb321594
Code: 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 80 3d d5 cd 0d 00 00 74 13 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 3c c3 0f 1f 00 55 48 89 e5 48 83 ec 10 89 7d
RSP: 002b:00007ffe8d8eef18 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 00007f2ffba4e668 RCX: 00007f2ffb321594
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007ffe8d8eef40 R08: 0000000000000000 R09: 0000000000000000
R10: 55c926e3167eae79 R11: 0000000000000202 R12: 0000000000000003
R13: 00007ffe8d8ef030 R14: 0000000000000000 R15: 00007f2ffba4e668
</TASK>
CR2: 0000000000000010
---[ end trace 0000000000000000 ]---
Move hrtimer_init to timerlat_fd open() to avoid this problem.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-04-05 18:03 UTC
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
e88ed227f639ebcb31ed4e5b88756b47d904584b , < 5f703935fdb559642d85b2088442ee55a557ae6d
(git)
Affected: e88ed227f639ebcb31ed4e5b88756b47d904584b , < 2354d29986ebd138f89c2b73fecf8237e0a4ad6b (git) Affected: e88ed227f639ebcb31ed4e5b88756b47d904584b , < 1389358bb008e7625942846e9f03554319b7fecc (git) |
guessed | |
| Linux | Linux |
Affected:
6.5
Unaffected: 0 , < 6.5 (semver) Unaffected: 6.6.18 , ≤ 6.6.* (semver) Unaffected: 6.7.6 , ≤ 6.7.* (semver) Unaffected: 6.8 , ≤ * (original_commit_for_fix) |
guessed |
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing/timerlat: Move hrtimer_init to timerlat_fd open()\n\nCurrently, the timerlat\u0027s hrtimer is initialized at the first read of\ntimerlat_fd, and destroyed at close(). It works, but it causes an error\nif the user program open() and close() the file without reading.\n\nHere\u0027s an example:\n\n # echo NO_OSNOISE_WORKLOAD \u003e /sys/kernel/debug/tracing/osnoise/options\n # echo timerlat \u003e /sys/kernel/debug/tracing/current_tracer\n\n # cat \u003c\u003cEOF \u003e ./timerlat_load.py\n # !/usr/bin/env python3\n\n timerlat_fd = open(\"/sys/kernel/tracing/osnoise/per_cpu/cpu0/timerlat_fd\", \u0027r\u0027)\n timerlat_fd.close();\n EOF\n\n # ./taskset -c 0 ./timerlat_load.py\n\u003cBOOM\u003e\n\n BUG: kernel NULL pointer dereference, address: 0000000000000010\n #PF: supervisor read access in kernel mode\n #PF: error_code(0x0000) - not-present page\n PGD 0 P4D 0\n Oops: 0000 [#1] PREEMPT SMP NOPTI\n CPU: 1 PID: 2673 Comm: python3 Not tainted 6.6.13-200.fc39.x86_64 #1\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-1.fc39 04/01/2014\n RIP: 0010:hrtimer_active+0xd/0x50\n Code: 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 48 8b 57 30 \u003c8b\u003e 42 10 a8 01 74 09 f3 90 8b 42 10 a8 01 75 f7 80 7f 38 00 75 1d\n RSP: 0018:ffffb031009b7e10 EFLAGS: 00010286\n RAX: 000000000002db00 RBX: ffff9118f786db08 RCX: 0000000000000000\n RDX: 0000000000000000 RSI: ffff9117a0e64400 RDI: ffff9118f786db08\n RBP: ffff9118f786db80 R08: ffff9117a0ddd420 R09: ffff9117804d4f70\n R10: 0000000000000000 R11: 0000000000000000 R12: ffff9118f786db08\n R13: ffff91178fdd5e20 R14: ffff9117840978c0 R15: 0000000000000000\n FS: 00007f2ffbab1740(0000) GS:ffff9118f7840000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000000000000010 CR3: 00000001b402e000 CR4: 0000000000750ee0\n PKRU: 55555554\n Call Trace:\n \u003cTASK\u003e\n ? __die+0x23/0x70\n ? page_fault_oops+0x171/0x4e0\n ? srso_alias_return_thunk+0x5/0x7f\n ? avc_has_extended_perms+0x237/0x520\n ? exc_page_fault+0x7f/0x180\n ? asm_exc_page_fault+0x26/0x30\n ? hrtimer_active+0xd/0x50\n hrtimer_cancel+0x15/0x40\n timerlat_fd_release+0x48/0xe0\n __fput+0xf5/0x290\n __x64_sys_close+0x3d/0x80\n do_syscall_64+0x60/0x90\n ? srso_alias_return_thunk+0x5/0x7f\n ? __x64_sys_ioctl+0x72/0xd0\n ? srso_alias_return_thunk+0x5/0x7f\n ? syscall_exit_to_user_mode+0x2b/0x40\n ? srso_alias_return_thunk+0x5/0x7f\n ? do_syscall_64+0x6c/0x90\n ? srso_alias_return_thunk+0x5/0x7f\n ? exit_to_user_mode_prepare+0x142/0x1f0\n ? srso_alias_return_thunk+0x5/0x7f\n ? syscall_exit_to_user_mode+0x2b/0x40\n ? srso_alias_return_thunk+0x5/0x7f\n ? do_syscall_64+0x6c/0x90\n entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n RIP: 0033:0x7f2ffb321594\n Code: 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 80 3d d5 cd 0d 00 00 74 13 b8 03 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 3c c3 0f 1f 00 55 48 89 e5 48 83 ec 10 89 7d\n RSP: 002b:00007ffe8d8eef18 EFLAGS: 00000202 ORIG_RAX: 0000000000000003\n RAX: ffffffffffffffda RBX: 00007f2ffba4e668 RCX: 00007f2ffb321594\n RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003\n RBP: 00007ffe8d8eef40 R08: 0000000000000000 R09: 0000000000000000\n R10: 55c926e3167eae79 R11: 0000000000000202 R12: 0000000000000003\n R13: 00007ffe8d8ef030 R14: 0000000000000000 R15: 00007f2ffba4e668\n \u003c/TASK\u003e\n CR2: 0000000000000010\n ---[ end trace 0000000000000000 ]---\n\nMove hrtimer_init to timerlat_fd open() to avoid this problem."
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"title": "tracing/timerlat: Move hrtimer_init to timerlat_fd open()",
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"fkie_nvd": {
"descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ntracing/timerlat: Move hrtimer_init to timerlat_fd open()\\n\\nCurrently, the timerlat\u0027s hrtimer is initialized at the first read of\\ntimerlat_fd, and destroyed at close(). It works, but it causes an error\\nif the user program open() and close() the file without reading.\\n\\nHere\u0027s an example:\\n\\n # echo NO_OSNOISE_WORKLOAD \u003e /sys/kernel/debug/tracing/osnoise/options\\n # echo timerlat \u003e /sys/kernel/debug/tracing/current_tracer\\n\\n # cat \u003c\u003cEOF \u003e ./timerlat_load.py\\n # !/usr/bin/env python3\\n\\n timerlat_fd = open(\\\"/sys/kernel/tracing/osnoise/per_cpu/cpu0/timerlat_fd\\\", \u0027r\u0027)\\n timerlat_fd.close();\\n EOF\\n\\n # ./taskset -c 0 ./timerlat_load.py\\n\u003cBOOM\u003e\\n\\n BUG: kernel NULL pointer dereference, address: 0000000000000010\\n #PF: supervisor read access in kernel mode\\n #PF: error_code(0x0000) - not-present page\\n PGD 0 P4D 0\\n Oops: 0000 [#1] PREEMPT SMP NOPTI\\n CPU: 1 PID: 2673 Comm: python3 Not tainted 6.6.13-200.fc39.x86_64 #1\\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-1.fc39 04/01/2014\\n RIP: 0010:hrtimer_active+0xd/0x50\\n Code: 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 48 8b 57 30 \u003c8b\u003e 42 10 a8 01 74 09 f3 90 8b 42 10 a8 01 75 f7 80 7f 38 00 75 1d\\n RSP: 0018:ffffb031009b7e10 EFLAGS: 00010286\\n RAX: 000000000002db00 RBX: ffff9118f786db08 RCX: 0000000000000000\\n RDX: 0000000000000000 RSI: ffff9117a0e64400 RDI: ffff9118f786db08\\n RBP: ffff9118f786db80 R08: ffff9117a0ddd420 R09: ffff9117804d4f70\\n R10: 0000000000000000 R11: 0000000000000000 R12: ffff9118f786db08\\n R13: ffff91178fdd5e20 R14: ffff9117840978c0 R15: 0000000000000000\\n FS: 00007f2ffbab1740(0000) GS:ffff9118f7840000(0000) knlGS:0000000000000000\\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n CR2: 0000000000000010 CR3: 00000001b402e000 CR4: 0000000000750ee0\\n PKRU: 55555554\\n Call Trace:\\n \u003cTASK\u003e\\n ? __die+0x23/0x70\\n ? page_fault_oops+0x171/0x4e0\\n ? srso_alias_return_thunk+0x5/0x7f\\n ? avc_has_extended_perms+0x237/0x520\\n ? exc_page_fault+0x7f/0x180\\n ? asm_exc_page_fault+0x26/0x30\\n ? hrtimer_active+0xd/0x50\\n hrtimer_cancel+0x15/0x40\\n timerlat_fd_release+0x48/0xe0\\n __fput+0xf5/0x290\\n __x64_sys_close+0x3d/0x80\\n do_syscall_64+0x60/0x90\\n ? srso_alias_return_thunk+0x5/0x7f\\n ? __x64_sys_ioctl+0x72/0xd0\\n ? srso_alias_return_thunk+0x5/0x7f\\n ? syscall_exit_to_user_mode+0x2b/0x40\\n ? srso_alias_return_thunk+0x5/0x7f\\n ? do_syscall_64+0x6c/0x90\\n ? srso_alias_return_thunk+0x5/0x7f\\n ? exit_to_user_mode_prepare+0x142/0x1f0\\n ? srso_alias_return_thunk+0x5/0x7f\\n ? syscall_exit_to_user_mode+0x2b/0x40\\n ? srso_alias_return_thunk+0x5/0x7f\\n ? do_syscall_64+0x6c/0x90\\n entry_SYSCALL_64_after_hwframe+0x6e/0xd8\\n RIP: 0033:0x7f2ffb321594\\n Code: 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 80 3d d5 cd 0d 00 00 74 13 b8 03 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 3c c3 0f 1f 00 55 48 89 e5 48 83 ec 10 89 7d\\n RSP: 002b:00007ffe8d8eef18 EFLAGS: 00000202 ORIG_RAX: 0000000000000003\\n RAX: ffffffffffffffda RBX: 00007f2ffba4e668 RCX: 00007f2ffb321594\\n RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003\\n RBP: 00007ffe8d8eef40 R08: 0000000000000000 R09: 0000000000000000\\n R10: 55c926e3167eae79 R11: 0000000000000202 R12: 0000000000000003\\n R13: 00007ffe8d8ef030 R14: 0000000000000000 R15: 00007f2ffba4e668\\n \u003c/TASK\u003e\\n CR2: 0000000000000010\\n ---[ end trace 0000000000000000 ]---\\n\\nMove hrtimer_init to timerlat_fd open() to avoid this problem.\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tracing/timerlat: mover hrtimer_init a timerlat_fd open() Actualmente, el hrtimer de timerlat se inicializa en la primera lectura de timerlat_fd y se destruye al cerrar(). Funciona, pero causa un error si el programa de usuario abre() y cierra() el archivo sin leerlo. Aqu\\u00ed hay un ejemplo: # echo NO_OSNOISE_WORKLOAD \u0026gt; /sys/kernel/debug/tracing/osnoise/options # echo timerlat \u0026gt; /sys/kernel/debug/tracing/current_tracer # cat \u0026lt; ./timerlat_load.py # !/usr/ bin/env python3 timerlat_fd = open(\\\"/sys/kernel/tracing/osnoise/per_cpu/cpu0/timerlat_fd\\\", \u0027r\u0027) timerlat_fd.close(); EOF # ./taskset -c 0 ./timerlat_load.py ERROR: desreferencia del puntero NULL del kernel, direcci\\u00f3n: 0000000000000010 #PF: acceso de lectura del supervisor en modo kernel #PF: c\\u00f3digo_de error(0x0000) - p\\u00e1gina no presente PGD 0 P4D 0 Ups: 0000 [#1] PREEMPT SMP NOPTI CPU: 1 PID: 2673 Comm: python3 No contaminado 6.6.13-200.fc39.x86_64 #1 Nombre del hardware: PC est\\u00e1ndar QEMU (Q35 + ICH9, 2009), BIOS 1.16. 3-1.fc39 01/04/2014 RIP: 0010:hrtimer_active+0xd/0x50 C\\u00f3digo: 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 48 8b 57 30 \u0026lt;8b\u0026gt; 42 10 a8 01 74 09 f3 90 8b 42 10 a8 01 75 f7 80 7f 38 00 75 1d RSP: 0018:ffffb031009b7e10 EF LAGS: 00010286 RAX: 000000000002db00 RBX: ffff9118f786db08 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff9117a0e64400 RDI: ffff9118f786db08 RBP: ffff9118f786db80 R08: ffff9117a0ddd42 0 R09: ffff9117804d4f70 R10: 0000000000000000 R11: 0000000000000000 R12: ffff9118f786db08 R13: ffff91178fdd5e20 R14: ffff9117840978c0 R15: 000 0000000000000 FS: 00007f2ffbab1740(0000) GS:ffff9118f7840000( 0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000000010 CR3: 00000001b402e000 CR4: 000000000075 0ee0 PKRU: 55555554 Seguimiento de llamadas: ? __morir+0x23/0x70 ? page_fault_oops+0x171/0x4e0? srso_alias_return_thunk+0x5/0x7f? avc_has_extended_perms+0x237/0x520? exc_page_fault+0x7f/0x180? asm_exc_page_fault+0x26/0x30? hrtimer_active+0xd/0x50 hrtimer_cancel+0x15/0x40 timerlat_fd_release+0x48/0xe0 __fput+0xf5/0x290 __x64_sys_close+0x3d/0x80 do_syscall_64+0x60/0x90 ? srso_alias_return_thunk+0x5/0x7f? __x64_sys_ioctl+0x72/0xd0? srso_alias_return_thunk+0x5/0x7f? syscall_exit_to_user_mode+0x2b/0x40? srso_alias_return_thunk+0x5/0x7f? do_syscall_64+0x6c/0x90? srso_alias_return_thunk+0x5/0x7f? exit_to_user_mode_prepare+0x142/0x1f0? srso_alias_return_thunk+0x5/0x7f? syscall_exit_to_user_mode+0x2b/0x40? srso_alias_return_thunk+0x5/0x7f? do_syscall_64+0x6c/0x90 Entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7f2ffb321594 C\\u00f3digo: 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 0 0 90 f3 0f 1e fa 80 3d d5 cd 0d 00 00 74 13 b8 03 00 00 00 0f 05 \u0026lt;48\u0026gt; 3d 00 f0 ff ff 77 3c c3 0f 1f 00 55 48 89 e5 48 83 ec 10 89 7d RSP: 002b:00007ffe8d8eef18 EFLAGS: 00000202 O IG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 00007f2ffba4e668 RCX: 00007f2ffb321594 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007ffe8d8eef40 R08: 0000000000000000 R09: 0 000000000000000 R10: 55c926e3167eae79 R11: 0000000000000202 R12: 0000000000000003 R13: 00007ffe8d8ef030 R14: 0000000000000000 R15: 0000 7f2ffba4e668 CR2: 0000000000000010 ---[ end trace 0000000000000000 ]--- Mueva hrtimer_init a timerlat_fd open() para evitar este problema.\"}]",
"id": "CVE-2024-26703",
"lastModified": "2024-11-21T09:02:52.843",
"published": "2024-04-03T15:15:53.140",
"references": "[{\"url\": \"https://git.kernel.org/stable/c/1389358bb008e7625942846e9f03554319b7fecc\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/2354d29986ebd138f89c2b73fecf8237e0a4ad6b\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/5f703935fdb559642d85b2088442ee55a557ae6d\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/1389358bb008e7625942846e9f03554319b7fecc\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/2354d29986ebd138f89c2b73fecf8237e0a4ad6b\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/5f703935fdb559642d85b2088442ee55a557ae6d\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Awaiting Analysis"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2024-26703\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-04-03T15:15:53.140\",\"lastModified\":\"2026-06-17T07:18:08.130\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ntracing/timerlat: Move hrtimer_init to timerlat_fd open()\\n\\nCurrently, the timerlat\u0027s hrtimer is initialized at the first read of\\ntimerlat_fd, and destroyed at close(). It works, but it causes an error\\nif the user program open() and close() the file without reading.\\n\\nHere\u0027s an example:\\n\\n # echo NO_OSNOISE_WORKLOAD \u003e /sys/kernel/debug/tracing/osnoise/options\\n # echo timerlat \u003e /sys/kernel/debug/tracing/current_tracer\\n\\n # cat \u003c\u003cEOF \u003e ./timerlat_load.py\\n # !/usr/bin/env python3\\n\\n timerlat_fd = open(\\\"/sys/kernel/tracing/osnoise/per_cpu/cpu0/timerlat_fd\\\", \u0027r\u0027)\\n timerlat_fd.close();\\n EOF\\n\\n # ./taskset -c 0 ./timerlat_load.py\\n\u003cBOOM\u003e\\n\\n BUG: kernel NULL pointer dereference, address: 0000000000000010\\n #PF: supervisor read access in kernel mode\\n #PF: error_code(0x0000) - not-present page\\n PGD 0 P4D 0\\n Oops: 0000 [#1] PREEMPT SMP NOPTI\\n CPU: 1 PID: 2673 Comm: python3 Not tainted 6.6.13-200.fc39.x86_64 #1\\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-1.fc39 04/01/2014\\n RIP: 0010:hrtimer_active+0xd/0x50\\n Code: 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 48 8b 57 30 \u003c8b\u003e 42 10 a8 01 74 09 f3 90 8b 42 10 a8 01 75 f7 80 7f 38 00 75 1d\\n RSP: 0018:ffffb031009b7e10 EFLAGS: 00010286\\n RAX: 000000000002db00 RBX: ffff9118f786db08 RCX: 0000000000000000\\n RDX: 0000000000000000 RSI: ffff9117a0e64400 RDI: ffff9118f786db08\\n RBP: ffff9118f786db80 R08: ffff9117a0ddd420 R09: ffff9117804d4f70\\n R10: 0000000000000000 R11: 0000000000000000 R12: ffff9118f786db08\\n R13: ffff91178fdd5e20 R14: ffff9117840978c0 R15: 0000000000000000\\n FS: 00007f2ffbab1740(0000) GS:ffff9118f7840000(0000) knlGS:0000000000000000\\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n CR2: 0000000000000010 CR3: 00000001b402e000 CR4: 0000000000750ee0\\n PKRU: 55555554\\n Call Trace:\\n \u003cTASK\u003e\\n ? __die+0x23/0x70\\n ? page_fault_oops+0x171/0x4e0\\n ? srso_alias_return_thunk+0x5/0x7f\\n ? avc_has_extended_perms+0x237/0x520\\n ? exc_page_fault+0x7f/0x180\\n ? asm_exc_page_fault+0x26/0x30\\n ? hrtimer_active+0xd/0x50\\n hrtimer_cancel+0x15/0x40\\n timerlat_fd_release+0x48/0xe0\\n __fput+0xf5/0x290\\n __x64_sys_close+0x3d/0x80\\n do_syscall_64+0x60/0x90\\n ? srso_alias_return_thunk+0x5/0x7f\\n ? __x64_sys_ioctl+0x72/0xd0\\n ? srso_alias_return_thunk+0x5/0x7f\\n ? syscall_exit_to_user_mode+0x2b/0x40\\n ? srso_alias_return_thunk+0x5/0x7f\\n ? do_syscall_64+0x6c/0x90\\n ? srso_alias_return_thunk+0x5/0x7f\\n ? exit_to_user_mode_prepare+0x142/0x1f0\\n ? srso_alias_return_thunk+0x5/0x7f\\n ? syscall_exit_to_user_mode+0x2b/0x40\\n ? srso_alias_return_thunk+0x5/0x7f\\n ? do_syscall_64+0x6c/0x90\\n entry_SYSCALL_64_after_hwframe+0x6e/0xd8\\n RIP: 0033:0x7f2ffb321594\\n Code: 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 80 3d d5 cd 0d 00 00 74 13 b8 03 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 3c c3 0f 1f 00 55 48 89 e5 48 83 ec 10 89 7d\\n RSP: 002b:00007ffe8d8eef18 EFLAGS: 00000202 ORIG_RAX: 0000000000000003\\n RAX: ffffffffffffffda RBX: 00007f2ffba4e668 RCX: 00007f2ffb321594\\n RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003\\n RBP: 00007ffe8d8eef40 R08: 0000000000000000 R09: 0000000000000000\\n R10: 55c926e3167eae79 R11: 0000000000000202 R12: 0000000000000003\\n R13: 00007ffe8d8ef030 R14: 0000000000000000 R15: 00007f2ffba4e668\\n \u003c/TASK\u003e\\n CR2: 0000000000000010\\n ---[ end trace 0000000000000000 ]---\\n\\nMove hrtimer_init to timerlat_fd open() to avoid this problem.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tracing/timerlat: mover hrtimer_init a timerlat_fd open() Actualmente, el hrtimer de timerlat se inicializa en la primera lectura de timerlat_fd y se destruye al cerrar(). Funciona, pero causa un error si el programa de usuario abre() y cierra() el archivo sin leerlo. Aqu\u00ed hay un ejemplo: # echo NO_OSNOISE_WORKLOAD \u0026gt; /sys/kernel/debug/tracing/osnoise/options # echo timerlat \u0026gt; /sys/kernel/debug/tracing/current_tracer # cat \u0026lt; ./timerlat_load.py # !/usr/ bin/env python3 timerlat_fd = open(\\\"/sys/kernel/tracing/osnoise/per_cpu/cpu0/timerlat_fd\\\", \u0027r\u0027) timerlat_fd.close(); EOF # ./taskset -c 0 ./timerlat_load.py ERROR: desreferencia del puntero NULL del kernel, direcci\u00f3n: 0000000000000010 #PF: acceso de lectura del supervisor en modo kernel #PF: c\u00f3digo_de error(0x0000) - p\u00e1gina no presente PGD 0 P4D 0 Ups: 0000 [#1] PREEMPT SMP NOPTI CPU: 1 PID: 2673 Comm: python3 No contaminado 6.6.13-200.fc39.x86_64 #1 Nombre del hardware: PC est\u00e1ndar QEMU (Q35 + ICH9, 2009), BIOS 1.16. 3-1.fc39 01/04/2014 RIP: 0010:hrtimer_active+0xd/0x50 C\u00f3digo: 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 48 8b 57 30 \u0026lt;8b\u0026gt; 42 10 a8 01 74 09 f3 90 8b 42 10 a8 01 75 f7 80 7f 38 00 75 1d RSP: 0018:ffffb031009b7e10 EF LAGS: 00010286 RAX: 000000000002db00 RBX: ffff9118f786db08 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff9117a0e64400 RDI: ffff9118f786db08 RBP: ffff9118f786db80 R08: ffff9117a0ddd42 0 R09: ffff9117804d4f70 R10: 0000000000000000 R11: 0000000000000000 R12: ffff9118f786db08 R13: ffff91178fdd5e20 R14: ffff9117840978c0 R15: 000 0000000000000 FS: 00007f2ffbab1740(0000) GS:ffff9118f7840000( 0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000000010 CR3: 00000001b402e000 CR4: 000000000075 0ee0 PKRU: 55555554 Seguimiento de llamadas: ? __morir+0x23/0x70 ? page_fault_oops+0x171/0x4e0? srso_alias_return_thunk+0x5/0x7f? avc_has_extended_perms+0x237/0x520? exc_page_fault+0x7f/0x180? asm_exc_page_fault+0x26/0x30? hrtimer_active+0xd/0x50 hrtimer_cancel+0x15/0x40 timerlat_fd_release+0x48/0xe0 __fput+0xf5/0x290 __x64_sys_close+0x3d/0x80 do_syscall_64+0x60/0x90 ? srso_alias_return_thunk+0x5/0x7f? __x64_sys_ioctl+0x72/0xd0? srso_alias_return_thunk+0x5/0x7f? syscall_exit_to_user_mode+0x2b/0x40? srso_alias_return_thunk+0x5/0x7f? do_syscall_64+0x6c/0x90? srso_alias_return_thunk+0x5/0x7f? exit_to_user_mode_prepare+0x142/0x1f0? srso_alias_return_thunk+0x5/0x7f? syscall_exit_to_user_mode+0x2b/0x40? srso_alias_return_thunk+0x5/0x7f? do_syscall_64+0x6c/0x90 Entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7f2ffb321594 C\u00f3digo: 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 0 0 90 f3 0f 1e fa 80 3d d5 cd 0d 00 00 74 13 b8 03 00 00 00 0f 05 \u0026lt;48\u0026gt; 3d 00 f0 ff ff 77 3c c3 0f 1f 00 55 48 89 e5 48 83 ec 10 89 7d RSP: 002b:00007ffe8d8eef18 EFLAGS: 00000202 O IG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 00007f2ffba4e668 RCX: 00007f2ffb321594 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007ffe8d8eef40 R08: 0000000000000000 R09: 0 000000000000000 R10: 55c926e3167eae79 R11: 0000000000000202 R12: 0000000000000003 R13: 00007ffe8d8ef030 R14: 0000000000000000 R15: 0000 7f2ffba4e668 CR2: 0000000000000010 ---[ end trace 0000000000000000 ]--- Mueva hrtimer_init a timerlat_fd open() para evitar este problema.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"kernel/trace/trace_osnoise.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"e88ed227f639ebcb31ed4e5b88756b47d904584b\",\"lessThan\":\"5f703935fdb559642d85b2088442ee55a557ae6d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e88ed227f639ebcb31ed4e5b88756b47d904584b\",\"lessThan\":\"2354d29986ebd138f89c2b73fecf8237e0a4ad6b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e88ed227f639ebcb31ed4e5b88756b47d904584b\",\"lessThan\":\"1389358bb008e7625942846e9f03554319b7fecc\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"kernel/trace/trace_osnoise.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.5\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.5\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.18\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.7.6\",\"lessThanOrEqual\":\"6.7.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.8\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-04-05T18:03:40.350570Z\",\"id\":\"CVE-2024-26703\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.5\",\"versionEndExcluding\":\"6.6.18\",\"matchCriteriaId\":\"66A88832-B39F-48D0-BFA1-F660E52CE523\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.7.6\",\"matchCriteriaId\":\"C6D6A5C8-7308-42A9-8A72-ABF3DEA4BB82\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"B9F4EA73-0894-400F-A490-3A397AB7A517\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"056BD938-0A27-4569-B391-30578B309EE3\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1389358bb008e7625942846e9f03554319b7fecc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/2354d29986ebd138f89c2b73fecf8237e0a4ad6b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5f703935fdb559642d85b2088442ee55a557ae6d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/1389358bb008e7625942846e9f03554319b7fecc\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/2354d29986ebd138f89c2b73fecf8237e0a4ad6b\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5f703935fdb559642d85b2088442ee55a557ae6d\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}",
"redhat_vex": {
"aggregate_severity": "Low",
"current_release_date": "2025-11-21T14:38:27+00:00",
"cve": "CVE-2024-26703",
"id": "CVE-2024-26703",
"initial_release_date": "2024-04-03T00:00:00+00:00",
"product_status:known_not_affected": "122",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: tracing/timerlat: Move hrtimer_init to timerlat_fd open()",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-26703.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-08-31T13:56:50Z",
"cve": "CVE-2024-26703",
"id": "CVE-2024-26703",
"initial_release_date": "2024-04-09T02:29:11Z",
"product_status:known_affected": "394",
"product_status:known_not_affected": "334",
"product_status:recommended": "280",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2024-26703",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-26703.json",
"version": "46"
},
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/5f703935fdb559642d85b2088442ee55a557ae6d\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/2354d29986ebd138f89c2b73fecf8237e0a4ad6b\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/1389358bb008e7625942846e9f03554319b7fecc\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T00:14:12.874Z\"}}, {\"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-26703\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-04-05T18:03:40.350570Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-05-23T19:01:22.299Z\"}, \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"title\": \"tracing/timerlat: Move hrtimer_init to timerlat_fd open()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"e88ed227f639ebcb31ed4e5b88756b47d904584b\", \"lessThan\": \"5f703935fdb559642d85b2088442ee55a557ae6d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e88ed227f639ebcb31ed4e5b88756b47d904584b\", \"lessThan\": \"2354d29986ebd138f89c2b73fecf8237e0a4ad6b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e88ed227f639ebcb31ed4e5b88756b47d904584b\", \"lessThan\": \"1389358bb008e7625942846e9f03554319b7fecc\", \"versionType\": \"git\"}], \"programFiles\": [\"kernel/trace/trace_osnoise.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.5\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.5\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.6.18\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.7.6\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.7.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"kernel/trace/trace_osnoise.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/5f703935fdb559642d85b2088442ee55a557ae6d\"}, {\"url\": \"https://git.kernel.org/stable/c/2354d29986ebd138f89c2b73fecf8237e0a4ad6b\"}, {\"url\": \"https://git.kernel.org/stable/c/1389358bb008e7625942846e9f03554319b7fecc\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ntracing/timerlat: Move hrtimer_init to timerlat_fd open()\\n\\nCurrently, the timerlat\u0027s hrtimer is initialized at the first read of\\ntimerlat_fd, and destroyed at close(). It works, but it causes an error\\nif the user program open() and close() the file without reading.\\n\\nHere\u0027s an example:\\n\\n # echo NO_OSNOISE_WORKLOAD \u003e /sys/kernel/debug/tracing/osnoise/options\\n # echo timerlat \u003e /sys/kernel/debug/tracing/current_tracer\\n\\n # cat \u003c\u003cEOF \u003e ./timerlat_load.py\\n # !/usr/bin/env python3\\n\\n timerlat_fd = open(\\\"/sys/kernel/tracing/osnoise/per_cpu/cpu0/timerlat_fd\\\", \u0027r\u0027)\\n timerlat_fd.close();\\n EOF\\n\\n # ./taskset -c 0 ./timerlat_load.py\\n\u003cBOOM\u003e\\n\\n BUG: kernel NULL pointer dereference, address: 0000000000000010\\n #PF: supervisor read access in kernel mode\\n #PF: error_code(0x0000) - not-present page\\n PGD 0 P4D 0\\n Oops: 0000 [#1] PREEMPT SMP NOPTI\\n CPU: 1 PID: 2673 Comm: python3 Not tainted 6.6.13-200.fc39.x86_64 #1\\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-1.fc39 04/01/2014\\n RIP: 0010:hrtimer_active+0xd/0x50\\n Code: 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 48 8b 57 30 \u003c8b\u003e 42 10 a8 01 74 09 f3 90 8b 42 10 a8 01 75 f7 80 7f 38 00 75 1d\\n RSP: 0018:ffffb031009b7e10 EFLAGS: 00010286\\n RAX: 000000000002db00 RBX: ffff9118f786db08 RCX: 0000000000000000\\n RDX: 0000000000000000 RSI: ffff9117a0e64400 RDI: ffff9118f786db08\\n RBP: ffff9118f786db80 R08: ffff9117a0ddd420 R09: ffff9117804d4f70\\n R10: 0000000000000000 R11: 0000000000000000 R12: ffff9118f786db08\\n R13: ffff91178fdd5e20 R14: ffff9117840978c0 R15: 0000000000000000\\n FS: 00007f2ffbab1740(0000) GS:ffff9118f7840000(0000) knlGS:0000000000000000\\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n CR2: 0000000000000010 CR3: 00000001b402e000 CR4: 0000000000750ee0\\n PKRU: 55555554\\n Call Trace:\\n \u003cTASK\u003e\\n ? __die+0x23/0x70\\n ? page_fault_oops+0x171/0x4e0\\n ? srso_alias_return_thunk+0x5/0x7f\\n ? avc_has_extended_perms+0x237/0x520\\n ? exc_page_fault+0x7f/0x180\\n ? asm_exc_page_fault+0x26/0x30\\n ? hrtimer_active+0xd/0x50\\n hrtimer_cancel+0x15/0x40\\n timerlat_fd_release+0x48/0xe0\\n __fput+0xf5/0x290\\n __x64_sys_close+0x3d/0x80\\n do_syscall_64+0x60/0x90\\n ? srso_alias_return_thunk+0x5/0x7f\\n ? __x64_sys_ioctl+0x72/0xd0\\n ? srso_alias_return_thunk+0x5/0x7f\\n ? syscall_exit_to_user_mode+0x2b/0x40\\n ? srso_alias_return_thunk+0x5/0x7f\\n ? do_syscall_64+0x6c/0x90\\n ? srso_alias_return_thunk+0x5/0x7f\\n ? exit_to_user_mode_prepare+0x142/0x1f0\\n ? srso_alias_return_thunk+0x5/0x7f\\n ? syscall_exit_to_user_mode+0x2b/0x40\\n ? srso_alias_return_thunk+0x5/0x7f\\n ? do_syscall_64+0x6c/0x90\\n entry_SYSCALL_64_after_hwframe+0x6e/0xd8\\n RIP: 0033:0x7f2ffb321594\\n Code: 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 80 3d d5 cd 0d 00 00 74 13 b8 03 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 3c c3 0f 1f 00 55 48 89 e5 48 83 ec 10 89 7d\\n RSP: 002b:00007ffe8d8eef18 EFLAGS: 00000202 ORIG_RAX: 0000000000000003\\n RAX: ffffffffffffffda RBX: 00007f2ffba4e668 RCX: 00007f2ffb321594\\n RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003\\n RBP: 00007ffe8d8eef40 R08: 0000000000000000 R09: 0000000000000000\\n R10: 55c926e3167eae79 R11: 0000000000000202 R12: 0000000000000003\\n R13: 00007ffe8d8ef030 R14: 0000000000000000 R15: 00007f2ffba4e668\\n \u003c/TASK\u003e\\n CR2: 0000000000000010\\n ---[ end trace 0000000000000000 ]---\\n\\nMove hrtimer_init to timerlat_fd open() to avoid this problem.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.18\", \"versionStartIncluding\": \"6.5\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.7.6\", \"versionStartIncluding\": \"6.5\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8\", \"versionStartIncluding\": \"6.5\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:02:32.960Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2024-26703\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T20:02:32.960Z\", \"dateReserved\": \"2024-02-19T14:20:24.158Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-04-03T14:55:01.838Z\", \"assignerShortName\": \"Linux\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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