CVE-2025-39683 (GCVE-0-2025-39683)
Vulnerability from cvelistv5 – Published: 2025-09-05 17:20 – Updated: 2026-08-05 12:04
VLAI
EPSS
VEX
Title
tracing: Limit access to parser->buffer when trace_get_user failed
Summary
In the Linux kernel, the following vulnerability has been resolved:
tracing: Limit access to parser->buffer when trace_get_user failed
When the length of the string written to set_ftrace_filter exceeds
FTRACE_BUFF_MAX, the following KASAN alarm will be triggered:
BUG: KASAN: slab-out-of-bounds in strsep+0x18c/0x1b0
Read of size 1 at addr ffff0000d00bd5ba by task ash/165
CPU: 1 UID: 0 PID: 165 Comm: ash Not tainted 6.16.0-g6bcdbd62bd56-dirty
Hardware name: linux,dummy-virt (DT)
Call trace:
show_stack+0x34/0x50 (C)
dump_stack_lvl+0xa0/0x158
print_address_description.constprop.0+0x88/0x398
print_report+0xb0/0x280
kasan_report+0xa4/0xf0
__asan_report_load1_noabort+0x20/0x30
strsep+0x18c/0x1b0
ftrace_process_regex.isra.0+0x100/0x2d8
ftrace_regex_release+0x484/0x618
__fput+0x364/0xa58
____fput+0x28/0x40
task_work_run+0x154/0x278
do_notify_resume+0x1f0/0x220
el0_svc+0xec/0xf0
el0t_64_sync_handler+0xa0/0xe8
el0t_64_sync+0x1ac/0x1b0
The reason is that trace_get_user will fail when processing a string
longer than FTRACE_BUFF_MAX, but not set the end of parser->buffer to 0.
Then an OOB access will be triggered in ftrace_regex_release->
ftrace_process_regex->strsep->strpbrk. We can solve this problem by
limiting access to parser->buffer when trace_get_user failed.
Severity
7.8 (High)
Assigner
References
11 references
Impacted products
6 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
634684d79733124f7470b226b0f42aada4426b07 , < b842ef39c2ad6156c13afdec25ecc6792a9b67b9
(git)
Affected: 8c9af478c06bb1ab1422f90d8ecbc53defd44bc3 , < 41b838420457802f21918df66764b6fbf829d330 (git) Affected: 8c9af478c06bb1ab1422f90d8ecbc53defd44bc3 , < 418b448e1d7470da9d4d4797f71782595ee69c49 (git) Affected: 8c9af478c06bb1ab1422f90d8ecbc53defd44bc3 , < 58ff8064cb4c7eddac4da1a59da039ead586950a (git) Affected: 8c9af478c06bb1ab1422f90d8ecbc53defd44bc3 , < d0c68045b8b0f3737ed7bd6b8c83b7887014adee (git) Affected: 8c9af478c06bb1ab1422f90d8ecbc53defd44bc3 , < 3079517a5ba80901fe828a06998da64b9b8749be (git) Affected: 8c9af478c06bb1ab1422f90d8ecbc53defd44bc3 , < 6a909ea83f226803ea0e718f6e88613df9234d58 (git) Affected: 24cd31752f47699b89b4b3471155c8e599a1a23a (git) Affected: e9cb474de7ff7a970c2a3951c12ec7e3113c0c35 (git) Affected: 6ab671191f64b0da7d547e2ad4dc199ca7e5b558 (git) Affected: 3d9281a4ac7171c808f9507f0937eb236b353905 (git) Affected: 0b641b25870f02e2423e494365fc5243cc1e2759 (git) Affected: ffd51dbfd2900e50c71b5c069fe407957e52d61f (git) Affected: cdd107d7f18158d966c2bc136204fe826dac445c (git) Affected: 5.10.36 , < 5.10.241 (semver) Affected: 4.4.269 , < 4.5 (semver) Affected: 4.9.269 , < 4.10 (semver) Affected: 4.14.233 , < 4.15 (semver) Affected: 4.19.191 , < 4.20 (semver) Affected: 5.4.118 , < 5.5 (semver) Affected: 5.11.20 , < 5.12 (semver) Affected: 5.12.3 , < 5.13 (semver) |
guessed | |
| Linux | Linux |
Affected:
5.13
Unaffected: 0 , < 5.13 (semver) Unaffected: 5.10.241 , ≤ 5.10.* (semver) Unaffected: 5.15.190 , ≤ 5.15.* (semver) Unaffected: 6.1.149 , ≤ 6.1.* (semver) Unaffected: 6.6.103 , ≤ 6.6.* (semver) Unaffected: 6.12.44 , ≤ 6.12.* (semver) Unaffected: 6.16.4 , ≤ 6.16.* (semver) Unaffected: 6.17 , ≤ * (original_commit_for_fix) |
guessed | |
| Siemens | SIMATIC CN 4100 |
Affected:
0 , < V5.0
(custom)
|
guessed | |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
guessed | |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
guessed | |
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
guessed |
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Limit access to parser-\u003ebuffer when trace_get_user failed\n\nWhen the length of the string written to set_ftrace_filter exceeds\nFTRACE_BUFF_MAX, the following KASAN alarm will be triggered:\n\nBUG: KASAN: slab-out-of-bounds in strsep+0x18c/0x1b0\nRead of size 1 at addr ffff0000d00bd5ba by task ash/165\n\nCPU: 1 UID: 0 PID: 165 Comm: ash Not tainted 6.16.0-g6bcdbd62bd56-dirty\nHardware name: linux,dummy-virt (DT)\nCall trace:\n show_stack+0x34/0x50 (C)\n dump_stack_lvl+0xa0/0x158\n print_address_description.constprop.0+0x88/0x398\n print_report+0xb0/0x280\n kasan_report+0xa4/0xf0\n __asan_report_load1_noabort+0x20/0x30\n strsep+0x18c/0x1b0\n ftrace_process_regex.isra.0+0x100/0x2d8\n ftrace_regex_release+0x484/0x618\n __fput+0x364/0xa58\n ____fput+0x28/0x40\n task_work_run+0x154/0x278\n do_notify_resume+0x1f0/0x220\n el0_svc+0xec/0xf0\n el0t_64_sync_handler+0xa0/0xe8\n el0t_64_sync+0x1ac/0x1b0\n\nThe reason is that trace_get_user will fail when processing a string\nlonger than FTRACE_BUFF_MAX, but not set the end of parser-\u003ebuffer to 0.\nThen an OOB access will be triggered in ftrace_regex_release-\u003e\nftrace_process_regex-\u003estrsep-\u003estrpbrk. We can solve this problem by\nlimiting access to parser-\u003ebuffer when trace_get_user failed."
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"cvssV3_1": {
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"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"value": "AV:L - Exploitation requires local access to write and then close the tracefs file /sys/kernel/tracing/set_ftrace_filter (or set_ftrace_notrace / set_graph_function); there is no remote or adjacent-network path to trace_get_user().\nAC:L - A single deterministic sequence \u2014 open the filter file, write one token longer than FTRACE_BUFF_MAX (670), close it \u2014 always leaves the parser buffer unterminated and drives strsep() past the allocation; the heap slack that determines how far the over-read runs is itself groomable by the attacker via ordinary kmalloc-1024 spray/free.\nPR:L - The kernel imposes no capability check on ftrace_regex_open/write/release \u2014 access is gated purely by tracefs file permissions, and real deployments grant them to unprivileged users (Android chowns the ftrace filter files to the shell user for \"atrace -k\", and embedded/automotive/ChromeOS images mount tracefs with gid= for a tracing group).\nUI:N - The attacker triggers everything itself; the OOB access happens in ftrace_regex_release() during the attacker\u0027s own close()/exit, with no victim action required.\nS:U - The over-read and NUL over-write stay within kernel slab memory in the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - strpbrk() reads an unbounded amount of heap memory past the 670-byte allocation until it happens to hit a \u0027:\u0027 or NUL, and the bytes it traverses influence the subsequent command strcmp/dispatch, so this is an unbounded out-of-bounds read of adjacent slab objects rather than a strictly bounded few-byte over-read.\nI:H - When the \u0027:\u0027 delimiter is located outside the allocation, strsep() executes *end++ = \u0027\\0\u0027, writing a NUL byte out of bounds into a neighbouring heap object at an offset the attacker can influence through heap grooming \u2014 a classic single-null-byte heap-corruption primitive usable to corrupt adjacent object metadata.\nA:H - The unterminated-string walk produces a KASAN slab-out-of-bounds report (panic under panic_on_warn) and can run off the end of the slab page into unmapped memory, causing a kernel oops; the resulting adjacent-object corruption can also crash the kernel later."
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"version": "3"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2025-39683\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-05T18:15:44.810\",\"lastModified\":\"2026-07-30T06:23:39.840\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ntracing: Limit access to parser-\u003ebuffer when trace_get_user failed\\n\\nWhen the length of the string written to set_ftrace_filter exceeds\\nFTRACE_BUFF_MAX, the following KASAN alarm will be triggered:\\n\\nBUG: KASAN: slab-out-of-bounds in strsep+0x18c/0x1b0\\nRead of size 1 at addr ffff0000d00bd5ba by task ash/165\\n\\nCPU: 1 UID: 0 PID: 165 Comm: ash Not tainted 6.16.0-g6bcdbd62bd56-dirty\\nHardware name: linux,dummy-virt (DT)\\nCall trace:\\n show_stack+0x34/0x50 (C)\\n dump_stack_lvl+0xa0/0x158\\n print_address_description.constprop.0+0x88/0x398\\n print_report+0xb0/0x280\\n kasan_report+0xa4/0xf0\\n __asan_report_load1_noabort+0x20/0x30\\n strsep+0x18c/0x1b0\\n ftrace_process_regex.isra.0+0x100/0x2d8\\n ftrace_regex_release+0x484/0x618\\n __fput+0x364/0xa58\\n ____fput+0x28/0x40\\n task_work_run+0x154/0x278\\n do_notify_resume+0x1f0/0x220\\n el0_svc+0xec/0xf0\\n el0t_64_sync_handler+0xa0/0xe8\\n el0t_64_sync+0x1ac/0x1b0\\n\\nThe reason is that trace_get_user will fail when processing a string\\nlonger than FTRACE_BUFF_MAX, but not set the end of parser-\u003ebuffer to 0.\\nThen an OOB access will be triggered in ftrace_regex_release-\u003e\\nftrace_process_regex-\u003estrsep-\u003estrpbrk. We can solve this problem by\\nlimiting access to parser-\u003ebuffer when trace_get_user failed.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"kernel/trace/trace.c\",\"kernel/trace/trace.h\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"634684d79733124f7470b226b0f42aada4426b07\",\"lessThan\":\"b842ef39c2ad6156c13afdec25ecc6792a9b67b9\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"8c9af478c06bb1ab1422f90d8ecbc53defd44bc3\",\"lessThan\":\"41b838420457802f21918df66764b6fbf829d330\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"8c9af478c06bb1ab1422f90d8ecbc53defd44bc3\",\"lessThan\":\"418b448e1d7470da9d4d4797f71782595ee69c49\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"8c9af478c06bb1ab1422f90d8ecbc53defd44bc3\",\"lessThan\":\"58ff8064cb4c7eddac4da1a59da039ead586950a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"8c9af478c06bb1ab1422f90d8ecbc53defd44bc3\",\"lessThan\":\"d0c68045b8b0f3737ed7bd6b8c83b7887014adee\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"8c9af478c06bb1ab1422f90d8ecbc53defd44bc3\",\"lessThan\":\"3079517a5ba80901fe828a06998da64b9b8749be\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"8c9af478c06bb1ab1422f90d8ecbc53defd44bc3\",\"lessThan\":\"6a909ea83f226803ea0e718f6e88613df9234d58\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"24cd31752f47699b89b4b3471155c8e599a1a23a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e9cb474de7ff7a970c2a3951c12ec7e3113c0c35\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"6ab671191f64b0da7d547e2ad4dc199ca7e5b558\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3d9281a4ac7171c808f9507f0937eb236b353905\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0b641b25870f02e2423e494365fc5243cc1e2759\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"ffd51dbfd2900e50c71b5c069fe407957e52d61f\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"cdd107d7f18158d966c2bc136204fe826dac445c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"5.10.36\",\"lessThan\":\"5.10.241\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"4.4.269\",\"lessThan\":\"4.5\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"4.9.269\",\"lessThan\":\"4.10\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"4.14.233\",\"lessThan\":\"4.15\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"4.19.191\",\"lessThan\":\"4.20\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"5.4.118\",\"lessThan\":\"5.5\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"5.11.20\",\"lessThan\":\"5.12\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"5.12.3\",\"lessThan\":\"5.13\",\"versionType\":\"semver\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"kernel/trace/trace.c\",\"kernel/trace/trace.h\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.13\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.13\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.241\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.190\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.149\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.103\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.44\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.16.4\",\"lessThanOrEqual\":\"6.16.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.17\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]},{\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\",\"affectedData\":[{\"vendor\":\"Siemens\",\"product\":\"SIMATIC CN 4100\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"V5.0\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"V3.1.5\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"V3.1.5\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"V3.1.5\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"V3.1.5\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"V3.1.5\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"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}]},\"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\":\"4.4.269\",\"versionEndExcluding\":\"4.5\",\"matchCriteriaId\":\"1A17D1FB-0B85-43ED-87BE-7BB15922086E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.9.269\",\"versionEndExcluding\":\"4.10\",\"matchCriteriaId\":\"5DA6B5DF-C354-4293-AF20-6294DC3DFAC0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.14.233\",\"versionEndExcluding\":\"4.15\",\"matchCriteriaId\":\"FC28E42D-3C4C-4E0A-A1A4-FB2471BB20B0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.19.191\",\"versionEndExcluding\":\"4.20\",\"matchCriteriaId\":\"FEB61259-1CF1-4791-8D81-F5ED7CEBE348\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.4.118\",\"versionEndExcluding\":\"5.5\",\"matchCriteriaId\":\"D7B7175E-AD40-460B-A504-676A7F85F2BD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.10.36\",\"versionEndExcluding\":\"5.10.241\",\"matchCriteriaId\":\"253602A1-BDF5-4DC3-A3F0-D06592A0F936\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11.20\",\"versionEndExcluding\":\"5.12\",\"matchCriteriaId\":\"CC8679E8-F4E0-4BBF-8682-F0CDCBC99C1E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.12.3\",\"versionEndExcluding\":\"5.15.190\",\"matchCriteriaId\":\"DCD56E21-B3AB-4991-B8CC-53E096B575BC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.149\",\"matchCriteriaId\":\"FDBE8280-8983-4D2D-943D-2E6D0104E2D8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.103\",\"matchCriteriaId\":\"F2293654-7169-49B5-8D0D-EE51EF8B8E48\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.44\",\"matchCriteriaId\":\"12351F24-1133-4775-960C-F2B47E81298B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.16.4\",\"matchCriteriaId\":\"AFC28995-B8C3-4B68-8CB6-78E792B6629D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"327D22EF-390B-454C-BD31-2ED23C998A1C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"C730CD9A-D969-4A8E-9522-162AAF7C0EE9\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FA6FEEC2-9F11-4643-8827-749718254FED\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3079517a5ba80901fe828a06998da64b9b8749be\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/418b448e1d7470da9d4d4797f71782595ee69c49\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/41b838420457802f21918df66764b6fbf829d330\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/58ff8064cb4c7eddac4da1a59da039ead586950a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6a909ea83f226803ea0e718f6e88613df9234d58\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b842ef39c2ad6156c13afdec25ecc6792a9b67b9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d0c68045b8b0f3737ed7bd6b8c83b7887014adee\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://cert-portal.siemens.com/productcert/html/ssa-032379.html\",\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\"},{\"url\":\"https://cert-portal.siemens.com/productcert/html/ssa-082556.html\",\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\"}]}}",
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-07-30T09:02:06+00:00",
"cve": "CVE-2025-39683",
"id": "CVE-2025-39683",
"initial_release_date": "2025-09-05T00:00:00+00:00",
"product_status:known_affected": "184",
"product_status:known_not_affected": "90",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: tracing: Limit access to parser-\u003ebuffer when trace_get_user failed",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-39683.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-09-11T01:59:22Z",
"cve": "CVE-2025-39683",
"id": "CVE-2025-39683",
"initial_release_date": "2025-09-08T23:22:53Z",
"product_status:first_fixed": "2",
"product_status:known_affected": "660",
"product_status:known_not_affected": "129",
"product_status:recommended": "464",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2025-39683",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-39683.json",
"version": "52"
}
}
}
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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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