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CVE-2024-39467 (GCVE-0-2024-39467)

Vulnerability from cvelistv5 – Published: 2024-06-25 14:25 – Updated: 2026-08-05 11:33
VLAI
Title
f2fs: fix to do sanity check on i_xattr_nid in sanity_check_inode()
Summary
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on i_xattr_nid in sanity_check_inode() syzbot reports a kernel bug as below: F2FS-fs (loop0): Mounted with checkpoint version = 48b305e4 ================================================================== BUG: KASAN: slab-out-of-bounds in f2fs_test_bit fs/f2fs/f2fs.h:2933 [inline] BUG: KASAN: slab-out-of-bounds in current_nat_addr fs/f2fs/node.h:213 [inline] BUG: KASAN: slab-out-of-bounds in f2fs_get_node_info+0xece/0x1200 fs/f2fs/node.c:600 Read of size 1 at addr ffff88807a58c76c by task syz-executor280/5076 CPU: 1 PID: 5076 Comm: syz-executor280 Not tainted 6.9.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 print_address_description mm/kasan/report.c:377 [inline] print_report+0x169/0x550 mm/kasan/report.c:488 kasan_report+0x143/0x180 mm/kasan/report.c:601 f2fs_test_bit fs/f2fs/f2fs.h:2933 [inline] current_nat_addr fs/f2fs/node.h:213 [inline] f2fs_get_node_info+0xece/0x1200 fs/f2fs/node.c:600 f2fs_xattr_fiemap fs/f2fs/data.c:1848 [inline] f2fs_fiemap+0x55d/0x1ee0 fs/f2fs/data.c:1925 ioctl_fiemap fs/ioctl.c:220 [inline] do_vfs_ioctl+0x1c07/0x2e50 fs/ioctl.c:838 __do_sys_ioctl fs/ioctl.c:902 [inline] __se_sys_ioctl+0x81/0x170 fs/ioctl.c:890 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f The root cause is we missed to do sanity check on i_xattr_nid during f2fs_iget(), so that in fiemap() path, current_nat_addr() will access nat_bitmap w/ offset from invalid i_xattr_nid, result in triggering kasan bug report, fix it.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-25 20:07 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 , < c559a8d840562fbfce9f318448dda2f7d3e6d8e8 (git)
Affected: 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 , < 75c87e2ac6149abf44bdde0dd6d541763ddb0dff (git)
Affected: 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 , < 1640dcf383cdba52be8b28d2a1a2aa7ef7a30c98 (git)
Affected: 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 , < 8c8aa473fe6eb46a4bf99f3ea2dbe52bf0c1a1f0 (git)
Affected: 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 , < be0155202e431f3007778568a72432c68f8946ba (git)
Affected: 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 , < 68e3cd4ecb8603936cccdc338929130045df2e57 (git)
Affected: 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 , < 20faaf30e55522bba2b56d9c46689233205d7717 (git)
guessed Create a notification for this product.
Linux Linux Affected: 3.8
Unaffected: 0 , < 3.8 (semver)
Unaffected: 5.4.278 , ≤ 5.4.* (semver)
Unaffected: 5.10.219 , ≤ 5.10.* (semver)
Unaffected: 5.15.161 , ≤ 5.15.* (semver)
Unaffected: 6.1.94 , ≤ 6.1.* (semver)
Unaffected: 6.6.34 , ≤ 6.6.* (semver)
Unaffected: 6.9.5 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to do sanity check on i_xattr_nid in sanity_check_inode()\n\nsyzbot reports a kernel bug as below:\n\nF2FS-fs (loop0): Mounted with checkpoint version = 48b305e4\n==================================================================\nBUG: KASAN: slab-out-of-bounds in f2fs_test_bit fs/f2fs/f2fs.h:2933 [inline]\nBUG: KASAN: slab-out-of-bounds in current_nat_addr fs/f2fs/node.h:213 [inline]\nBUG: KASAN: slab-out-of-bounds in f2fs_get_node_info+0xece/0x1200 fs/f2fs/node.c:600\nRead of size 1 at addr ffff88807a58c76c by task syz-executor280/5076\n\nCPU: 1 PID: 5076 Comm: syz-executor280 Not tainted 6.9.0-rc5-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114\n print_address_description mm/kasan/report.c:377 [inline]\n print_report+0x169/0x550 mm/kasan/report.c:488\n kasan_report+0x143/0x180 mm/kasan/report.c:601\n f2fs_test_bit fs/f2fs/f2fs.h:2933 [inline]\n current_nat_addr fs/f2fs/node.h:213 [inline]\n f2fs_get_node_info+0xece/0x1200 fs/f2fs/node.c:600\n f2fs_xattr_fiemap fs/f2fs/data.c:1848 [inline]\n f2fs_fiemap+0x55d/0x1ee0 fs/f2fs/data.c:1925\n ioctl_fiemap fs/ioctl.c:220 [inline]\n do_vfs_ioctl+0x1c07/0x2e50 fs/ioctl.c:838\n __do_sys_ioctl fs/ioctl.c:902 [inline]\n __se_sys_ioctl+0x81/0x170 fs/ioctl.c:890\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nThe root cause is we missed to do sanity check on i_xattr_nid during\nf2fs_iget(), so that in fiemap() path, current_nat_addr() will access\nnat_bitmap w/ offset from invalid i_xattr_nid, result in triggering\nkasan bug report, fix it."
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              "value": "AV:L - The vulnerable code is reached only through a locally attached/mounted crafted f2fs image, with the trigger being a local `ioctl(FS_IOC_FIEMAP, FIEMAP_FLAG_XATTR)` syscall or mount-time roll-forward recovery. No network or remote-peer data path exists into fs/f2fs/inode.c or the NAT lookup code.\nAC:L - The attacker fully controls every input \u2014 the on-disk `i_xattr_nid`, the checkpoint\u0027s NAT bitmap size, and the NAT/SSA/SIT block layout \u2014 so the out-of-range `NAT_BLOCK_OFFSET(nid)` deterministically indexes past `nm_i-\u003enat_bitmap` on the first attempt. There is no race, no dependence on uncontrollable memory layout, and no non-default kernel config (fiemap and roll-forward recovery are both default-enabled).\nPR:L - Once the image is mounted, any unprivileged user can trigger the out-of-bounds access with a plain `FS_IOC_FIEMAP` ioctl \u2014 there is no capability check anywhere on the path from `do_vfs_ioctl` through `f2fs_fiemap` to `current_nat_addr`. On Android (vold auto-mounts f2fs portable/adoptable storage) and desktop/kiosk systems (udisks2/polkit), an unprivileged console user gets the attacker\u0027s f2fs image mounted without root.\nUI:N - The attacker supplies their own crafted image and issues the fiemap ioctl themselves; removable-media auto-mount by udisks2/vold happens without any deliberate victim action. The recovery-path variant likewise fires automatically during the mount the attacker caused.\nS:U - The out-of-bounds read and the bit-flip write both stay inside the kernel\u0027s own address space and security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - This is a slab out-of-bounds read at an offset the attacker chooses byte-by-byte up to ~1.18 MB past a small `kmemdup`\u0027d `nat_bitmap`, so it is not a strictly bounded few-byte read. The bit read back selects which NAT block is parsed, and the resulting `ni.blk_addr` is returned to userspace as the fiemap extent\u0027s physical address, turning it into a repeatable oracle that discloses adjacent heap contents \u2014 kernel pointers and other slab objects \u2014 defeating KASLR.\nI:H - Via `f2fs_recover_xattr_data()` the bogus nid reaches `set_node_addr()`, which dirties a NAT set keyed on the out-of-range block offset; the next checkpoint then executes `f2fs_change_bit(block_off, nm_i-\u003enat_bitmap)` in `set_to_next_nat()` and `__set_bit_le(nat_index, nm_i-\u003eempty_nat_bits)` in `__update_nat_bits()` \u2014 out-of-bounds heap writes at an attacker-chosen offset. A controlled single-bit flip into a groomed adjacent slab object (pointer, refcount, or credential/permission field) is a well-established privilege-escalation primitive.\nA:H - The reported symptom is a KASAN slab-out-of-bounds report, which panics on `panic_on_warn`/hardened Android and cloud kernels; on non-KASAN kernels the read can walk into unmapped memory and oops. The out-of-bounds bit flips additionally corrupt the NAT bitmap and neighbouring heap objects, and `f2fs_bug_on`/`f2fs_handle_error` paths in the checkpoint flush stop the filesystem, so the crash is reliably re-triggerable."
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    "fkie_nvd": {
      "descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nf2fs: fix to do sanity check on i_xattr_nid in sanity_check_inode()\\n\\nsyzbot reports a kernel bug as below:\\n\\nF2FS-fs (loop0): Mounted with checkpoint version = 48b305e4\\n==================================================================\\nBUG: KASAN: slab-out-of-bounds in f2fs_test_bit fs/f2fs/f2fs.h:2933 [inline]\\nBUG: KASAN: slab-out-of-bounds in current_nat_addr fs/f2fs/node.h:213 [inline]\\nBUG: KASAN: slab-out-of-bounds in f2fs_get_node_info+0xece/0x1200 fs/f2fs/node.c:600\\nRead of size 1 at addr ffff88807a58c76c by task syz-executor280/5076\\n\\nCPU: 1 PID: 5076 Comm: syz-executor280 Not tainted 6.9.0-rc5-syzkaller #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024\\nCall Trace:\\n \u003cTASK\u003e\\n __dump_stack lib/dump_stack.c:88 [inline]\\n dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114\\n print_address_description mm/kasan/report.c:377 [inline]\\n print_report+0x169/0x550 mm/kasan/report.c:488\\n kasan_report+0x143/0x180 mm/kasan/report.c:601\\n f2fs_test_bit fs/f2fs/f2fs.h:2933 [inline]\\n current_nat_addr fs/f2fs/node.h:213 [inline]\\n f2fs_get_node_info+0xece/0x1200 fs/f2fs/node.c:600\\n f2fs_xattr_fiemap fs/f2fs/data.c:1848 [inline]\\n f2fs_fiemap+0x55d/0x1ee0 fs/f2fs/data.c:1925\\n ioctl_fiemap fs/ioctl.c:220 [inline]\\n do_vfs_ioctl+0x1c07/0x2e50 fs/ioctl.c:838\\n __do_sys_ioctl fs/ioctl.c:902 [inline]\\n __se_sys_ioctl+0x81/0x170 fs/ioctl.c:890\\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\\n do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83\\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\\n\\nThe root cause is we missed to do sanity check on i_xattr_nid during\\nf2fs_iget(), so that in fiemap() path, current_nat_addr() will access\\nnat_bitmap w/ offset from invalid i_xattr_nid, result in triggering\\nkasan bug report, fix it.\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se resolvi\\u00f3 la siguiente vulnerabilidad: f2fs: correcci\\u00f3n para realizar una verificaci\\u00f3n de estado en i_xattr_nid en sanity_check_inode() syzbot informa un error en el kernel como se muestra a continuaci\\u00f3n: F2FS-fs (loop0): Montado con la versi\\u00f3n de punto de control = 48b305e4 ==== ==================================================== ============ ERROR: KASAN: losa fuera de los l\\u00edmites en f2fs_test_bit fs/f2fs/f2fs.h:2933 [en l\\u00ednea] ERROR: KASAN: losa fuera de los l\\u00edmites en current_nat_addr fs/f2fs/node.h:213 [en l\\u00ednea] ERROR: KASAN: losa fuera de los l\\u00edmites en f2fs_get_node_info+0xece/0x1200 fs/f2fs/node.c:600 Lectura de tama\\u00f1o 1 en la direcci\\u00f3n ffff88807a58c76c mediante la tarea syz-executor280 /5076 CPU: 1 PID: 5076 Comm: syz-executor280 No contaminado 6.9.0-rc5-syzkaller #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 27/03/2024 Seguimiento de llamadas:  __dump_stack lib/dump_stack.c:88 [en l\\u00ednea] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 print_address_description mm/kasan/report.c:377 [en l\\u00ednea] print_report+0x169/0x550 mm/kasan/report.c:488 kasan_report +0x143/0x180 mm/kasan/report.c:601 f2fs_test_bit fs/f2fs/f2fs.h:2933 [en l\\u00ednea] current_nat_addr fs/f2fs/node.h:213 [en l\\u00ednea] f2fs_get_node_info+0xece/0x1200 fs/f2fs/node. c:600 f2fs_xattr_fiemap fs/f2fs/data.c:1848 [en l\\u00ednea] f2fs_fiemap+0x55d/0x1ee0 fs/f2fs/data.c:1925 ioctl_fiemap fs/ioctl.c:220 [en l\\u00ednea] do_vfs_ioctl+0x1c07/0x2e50 ioctl. c:838 __do_sys_ioctl fs/ioctl.c:902 [en l\\u00ednea] __se_sys_ioctl+0x81/0x170 fs/ioctl.c:890 do_syscall_x64 arch/x86/entry/common.c:52 [en l\\u00ednea] do_syscall_64+0xf5/0x240 arch/x86/ Entry/common.c:83 Entry_SYSCALL_64_after_hwframe+0x77/0x7f La causa principal es que no hicimos una verificaci\\u00f3n de cordura en i_xattr_nid durante f2fs_iget(), de modo que en la ruta fiemap(), current_nat_addr() acceder\\u00e1 a nat_bitmap con desplazamiento desde i_xattr_nid no v\\u00e1lido, resulta en la activaci\\u00f3n del informe de error de Kasan, corr\\u00edjalo.\"}]",
      "id": "CVE-2024-39467",
      "lastModified": "2024-11-21T09:27:43.647",
      "published": "2024-06-25T15:15:15.190",
      "references": "[{\"url\": \"https://git.kernel.org/stable/c/1640dcf383cdba52be8b28d2a1a2aa7ef7a30c98\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/20faaf30e55522bba2b56d9c46689233205d7717\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/68e3cd4ecb8603936cccdc338929130045df2e57\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/75c87e2ac6149abf44bdde0dd6d541763ddb0dff\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/8c8aa473fe6eb46a4bf99f3ea2dbe52bf0c1a1f0\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/be0155202e431f3007778568a72432c68f8946ba\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/c559a8d840562fbfce9f318448dda2f7d3e6d8e8\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/1640dcf383cdba52be8b28d2a1a2aa7ef7a30c98\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/20faaf30e55522bba2b56d9c46689233205d7717\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/68e3cd4ecb8603936cccdc338929130045df2e57\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/75c87e2ac6149abf44bdde0dd6d541763ddb0dff\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/8c8aa473fe6eb46a4bf99f3ea2dbe52bf0c1a1f0\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/be0155202e431f3007778568a72432c68f8946ba\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/c559a8d840562fbfce9f318448dda2f7d3e6d8e8\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Awaiting Analysis"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-39467\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-06-25T15:15:15.190\",\"lastModified\":\"2026-08-04T11:18:56.140\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nf2fs: fix to do sanity check on i_xattr_nid in sanity_check_inode()\\n\\nsyzbot reports a kernel bug as below:\\n\\nF2FS-fs (loop0): Mounted with checkpoint version = 48b305e4\\n==================================================================\\nBUG: KASAN: slab-out-of-bounds in f2fs_test_bit fs/f2fs/f2fs.h:2933 [inline]\\nBUG: KASAN: slab-out-of-bounds in current_nat_addr fs/f2fs/node.h:213 [inline]\\nBUG: KASAN: slab-out-of-bounds in f2fs_get_node_info+0xece/0x1200 fs/f2fs/node.c:600\\nRead of size 1 at addr ffff88807a58c76c by task syz-executor280/5076\\n\\nCPU: 1 PID: 5076 Comm: syz-executor280 Not tainted 6.9.0-rc5-syzkaller #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024\\nCall Trace:\\n \u003cTASK\u003e\\n __dump_stack lib/dump_stack.c:88 [inline]\\n dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114\\n print_address_description mm/kasan/report.c:377 [inline]\\n print_report+0x169/0x550 mm/kasan/report.c:488\\n kasan_report+0x143/0x180 mm/kasan/report.c:601\\n f2fs_test_bit fs/f2fs/f2fs.h:2933 [inline]\\n current_nat_addr fs/f2fs/node.h:213 [inline]\\n f2fs_get_node_info+0xece/0x1200 fs/f2fs/node.c:600\\n f2fs_xattr_fiemap fs/f2fs/data.c:1848 [inline]\\n f2fs_fiemap+0x55d/0x1ee0 fs/f2fs/data.c:1925\\n ioctl_fiemap fs/ioctl.c:220 [inline]\\n do_vfs_ioctl+0x1c07/0x2e50 fs/ioctl.c:838\\n __do_sys_ioctl fs/ioctl.c:902 [inline]\\n __se_sys_ioctl+0x81/0x170 fs/ioctl.c:890\\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\\n do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83\\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\\n\\nThe root cause is we missed to do sanity check on i_xattr_nid during\\nf2fs_iget(), so that in fiemap() path, current_nat_addr() will access\\nnat_bitmap w/ offset from invalid i_xattr_nid, result in triggering\\nkasan bug report, fix it.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: f2fs: correcci\u00f3n para realizar una verificaci\u00f3n de estado en i_xattr_nid en sanity_check_inode() syzbot informa un error en el kernel como se muestra a continuaci\u00f3n: F2FS-fs (loop0): Montado con la versi\u00f3n de punto de control = 48b305e4 ==== ==================================================== ============ ERROR: KASAN: losa fuera de los l\u00edmites en f2fs_test_bit fs/f2fs/f2fs.h:2933 [en l\u00ednea] ERROR: KASAN: losa fuera de los l\u00edmites en current_nat_addr fs/f2fs/node.h:213 [en l\u00ednea] ERROR: KASAN: losa fuera de los l\u00edmites en f2fs_get_node_info+0xece/0x1200 fs/f2fs/node.c:600 Lectura de tama\u00f1o 1 en la direcci\u00f3n ffff88807a58c76c mediante la tarea syz-executor280 /5076 CPU: 1 PID: 5076 Comm: syz-executor280 No contaminado 6.9.0-rc5-syzkaller #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 27/03/2024 Seguimiento de llamadas:  __dump_stack lib/dump_stack.c:88 [en l\u00ednea] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 print_address_description mm/kasan/report.c:377 [en l\u00ednea] print_report+0x169/0x550 mm/kasan/report.c:488 kasan_report +0x143/0x180 mm/kasan/report.c:601 f2fs_test_bit fs/f2fs/f2fs.h:2933 [en l\u00ednea] current_nat_addr fs/f2fs/node.h:213 [en l\u00ednea] f2fs_get_node_info+0xece/0x1200 fs/f2fs/node. c:600 f2fs_xattr_fiemap fs/f2fs/data.c:1848 [en l\u00ednea] f2fs_fiemap+0x55d/0x1ee0 fs/f2fs/data.c:1925 ioctl_fiemap fs/ioctl.c:220 [en l\u00ednea] do_vfs_ioctl+0x1c07/0x2e50 ioctl. c:838 __do_sys_ioctl fs/ioctl.c:902 [en l\u00ednea] __se_sys_ioctl+0x81/0x170 fs/ioctl.c:890 do_syscall_x64 arch/x86/entry/common.c:52 [en l\u00ednea] do_syscall_64+0xf5/0x240 arch/x86/ Entry/common.c:83 Entry_SYSCALL_64_after_hwframe+0x77/0x7f La causa principal es que no hicimos una verificaci\u00f3n de cordura en i_xattr_nid durante f2fs_iget(), de modo que en la ruta fiemap(), current_nat_addr() acceder\u00e1 a nat_bitmap con desplazamiento desde i_xattr_nid no v\u00e1lido, resulta en la activaci\u00f3n del informe de error de Kasan, corr\u00edjalo.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"fs/f2fs/inode.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"98e4da8ca301e062d79ae168c67e56f3c3de3ce4\",\"lessThan\":\"c559a8d840562fbfce9f318448dda2f7d3e6d8e8\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"98e4da8ca301e062d79ae168c67e56f3c3de3ce4\",\"lessThan\":\"75c87e2ac6149abf44bdde0dd6d541763ddb0dff\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"98e4da8ca301e062d79ae168c67e56f3c3de3ce4\",\"lessThan\":\"1640dcf383cdba52be8b28d2a1a2aa7ef7a30c98\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"98e4da8ca301e062d79ae168c67e56f3c3de3ce4\",\"lessThan\":\"8c8aa473fe6eb46a4bf99f3ea2dbe52bf0c1a1f0\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"98e4da8ca301e062d79ae168c67e56f3c3de3ce4\",\"lessThan\":\"be0155202e431f3007778568a72432c68f8946ba\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"98e4da8ca301e062d79ae168c67e56f3c3de3ce4\",\"lessThan\":\"68e3cd4ecb8603936cccdc338929130045df2e57\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"98e4da8ca301e062d79ae168c67e56f3c3de3ce4\",\"lessThan\":\"20faaf30e55522bba2b56d9c46689233205d7717\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"fs/f2fs/inode.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3.8\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"3.8\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.278\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.219\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.161\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.94\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.34\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.9.5\",\"lessThanOrEqual\":\"6.9.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.10\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9},{\"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:H/I:N/A:H\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.2}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-06-25T20:07:46.450278Z\",\"id\":\"CVE-2024-39467\",\"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-125\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.8\",\"versionEndExcluding\":\"5.4.278\",\"matchCriteriaId\":\"ADDEDD23-B4FD-4B6A-8913-6742F221369B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.219\",\"matchCriteriaId\":\"E9063AF3-D593-43B7-810D-58B87F82F9F9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.161\",\"matchCriteriaId\":\"31130639-53FE-4726-8986-434EE2528CB2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.94\",\"matchCriteriaId\":\"9D20DE32-76F8-4E4C-A8DF-5B53082D18E5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.34\",\"matchCriteriaId\":\"6BD9DCFD-0342-4039-B8CE-70F26DB7173B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.9.5\",\"matchCriteriaId\":\"8366481F-770F-4850-9D0F-2977BD97D5C5\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1640dcf383cdba52be8b28d2a1a2aa7ef7a30c98\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/20faaf30e55522bba2b56d9c46689233205d7717\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/68e3cd4ecb8603936cccdc338929130045df2e57\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/75c87e2ac6149abf44bdde0dd6d541763ddb0dff\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8c8aa473fe6eb46a4bf99f3ea2dbe52bf0c1a1f0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/be0155202e431f3007778568a72432c68f8946ba\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c559a8d840562fbfce9f318448dda2f7d3e6d8e8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/1640dcf383cdba52be8b28d2a1a2aa7ef7a30c98\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/20faaf30e55522bba2b56d9c46689233205d7717\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/68e3cd4ecb8603936cccdc338929130045df2e57\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/75c87e2ac6149abf44bdde0dd6d541763ddb0dff\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8c8aa473fe6eb46a4bf99f3ea2dbe52bf0c1a1f0\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/be0155202e431f3007778568a72432c68f8946ba\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c559a8d840562fbfce9f318448dda2f7d3e6d8e8\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-09-13T08:27:55+00:00",
      "cve": "CVE-2024-39467",
      "id": "CVE-2024-39467",
      "initial_release_date": "2024-06-25T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: f2fs: fix to do sanity check on i_xattr_nid in sanity_check_inode()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-39467.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-29T01:53:06Z",
      "cve": "CVE-2024-39467",
      "id": "CVE-2024-39467",
      "initial_release_date": "2024-06-26T23:17:21Z",
      "product_status:known_not_affected": "373",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-39467",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-39467.json",
      "version": "18"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/c559a8d840562fbfce9f318448dda2f7d3e6d8e8\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/75c87e2ac6149abf44bdde0dd6d541763ddb0dff\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/1640dcf383cdba52be8b28d2a1a2aa7ef7a30c98\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/8c8aa473fe6eb46a4bf99f3ea2dbe52bf0c1a1f0\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/be0155202e431f3007778568a72432c68f8946ba\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/68e3cd4ecb8603936cccdc338929130045df2e57\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/20faaf30e55522bba2b56d9c46689233205d7717\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T04:26:15.173Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-39467\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-06-25T20:07:46.450278Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-06-25T20:07:51.187Z\"}}], \"cna\": {\"title\": \"f2fs: fix to do sanity check on i_xattr_nid in sanity_check_inode()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"98e4da8ca301e062d79ae168c67e56f3c3de3ce4\", \"lessThan\": 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\"unaffected\", \"version\": \"6.6.34\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9.5\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.9.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/f2fs/inode.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/c559a8d840562fbfce9f318448dda2f7d3e6d8e8\"}, {\"url\": \"https://git.kernel.org/stable/c/75c87e2ac6149abf44bdde0dd6d541763ddb0dff\"}, {\"url\": \"https://git.kernel.org/stable/c/1640dcf383cdba52be8b28d2a1a2aa7ef7a30c98\"}, {\"url\": \"https://git.kernel.org/stable/c/8c8aa473fe6eb46a4bf99f3ea2dbe52bf0c1a1f0\"}, {\"url\": \"https://git.kernel.org/stable/c/be0155202e431f3007778568a72432c68f8946ba\"}, {\"url\": \"https://git.kernel.org/stable/c/68e3cd4ecb8603936cccdc338929130045df2e57\"}, {\"url\": \"https://git.kernel.org/stable/c/20faaf30e55522bba2b56d9c46689233205d7717\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nf2fs: fix to do sanity check on i_xattr_nid in sanity_check_inode()\\n\\nsyzbot reports a kernel bug as below:\\n\\nF2FS-fs (loop0): Mounted with checkpoint version = 48b305e4\\n==================================================================\\nBUG: KASAN: slab-out-of-bounds in f2fs_test_bit fs/f2fs/f2fs.h:2933 [inline]\\nBUG: KASAN: slab-out-of-bounds in current_nat_addr fs/f2fs/node.h:213 [inline]\\nBUG: KASAN: slab-out-of-bounds in f2fs_get_node_info+0xece/0x1200 fs/f2fs/node.c:600\\nRead of size 1 at addr ffff88807a58c76c by task syz-executor280/5076\\n\\nCPU: 1 PID: 5076 Comm: syz-executor280 Not tainted 6.9.0-rc5-syzkaller #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024\\nCall Trace:\\n \u003cTASK\u003e\\n __dump_stack lib/dump_stack.c:88 [inline]\\n dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114\\n print_address_description mm/kasan/report.c:377 [inline]\\n print_report+0x169/0x550 mm/kasan/report.c:488\\n kasan_report+0x143/0x180 mm/kasan/report.c:601\\n f2fs_test_bit fs/f2fs/f2fs.h:2933 [inline]\\n current_nat_addr fs/f2fs/node.h:213 [inline]\\n f2fs_get_node_info+0xece/0x1200 fs/f2fs/node.c:600\\n f2fs_xattr_fiemap fs/f2fs/data.c:1848 [inline]\\n f2fs_fiemap+0x55d/0x1ee0 fs/f2fs/data.c:1925\\n ioctl_fiemap fs/ioctl.c:220 [inline]\\n do_vfs_ioctl+0x1c07/0x2e50 fs/ioctl.c:838\\n __do_sys_ioctl fs/ioctl.c:902 [inline]\\n __se_sys_ioctl+0x81/0x170 fs/ioctl.c:890\\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\\n do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83\\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\\n\\nThe root cause is we missed to do sanity check on i_xattr_nid during\\nf2fs_iget(), so that in fiemap() path, current_nat_addr() will access\\nnat_bitmap w/ offset from invalid i_xattr_nid, result in triggering\\nkasan bug report, fix it.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.278\", \"versionStartIncluding\": \"3.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.219\", \"versionStartIncluding\": \"3.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.161\", \"versionStartIncluding\": \"3.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.94\", \"versionStartIncluding\": \"3.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.34\", \"versionStartIncluding\": \"3.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9.5\", \"versionStartIncluding\": \"3.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10\", \"versionStartIncluding\": \"3.8\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-07-11T17:19:48.933Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-39467\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-07-11T17:19:48.933Z\", \"dateReserved\": \"2024-06-25T14:23:23.744Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-06-25T14:25:05.609Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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.

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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


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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.