CVE-2025-38424
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
perf: Fix sample vs do_exit()
In the Linux kernel, the following vulnerability has been resolved: perf: Fix sample vs do_exit() Baisheng Gao reported an ARM64 crash, which Mark decoded as being a synchronous external abort -- most likely due to trying to access MMIO in bad ways. The crash further shows perf trying to do a user stack sample while in exit_mmap()'s tlb_finish_mmu() -- i.e. while tearing down the address space it is trying to access. It turns out that we stop perf after we tear down the userspace mm; a receipie for disaster, since perf likes to access userspace for various reasons. Flip this order by moving up where we stop perf in do_exit(). Additionally, harden PERF_SAMPLE_CALLCHAIN and PERF_SAMPLE_STACK_USER to abort when the current task does not have an mm (exit_mm() makes sure to set current->mm = NULL; before commencing with the actual teardown). Such that CPU wide events don't trip on this same problem.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| c5ebcedb566ef17bda7b02686e0d658a7bb42ee7 | affected | git | 7b8f3c72175c6a63a95cf2e219f8b78e2baad34e | Unavailable | None listed |
| c5ebcedb566ef17bda7b02686e0d658a7bb42ee7 | affected | git | 507c9a595bad3abd107c6a8857d7fd125d89f386 | Unavailable | None listed |
| c5ebcedb566ef17bda7b02686e0d658a7bb42ee7 | affected | git | a9f6aab7910a0ef2895797f15c947f6d1053160f | Unavailable | None listed |
| c5ebcedb566ef17bda7b02686e0d658a7bb42ee7 | affected | git | 975ffddfa2e19823c719459d2364fcaa17673964 | Unavailable | None listed |
| c5ebcedb566ef17bda7b02686e0d658a7bb42ee7 | affected | git | 2ee6044a693735396bb47eeaba1ac3ae26c1c99b | Unavailable | None listed |
| c5ebcedb566ef17bda7b02686e0d658a7bb42ee7 | affected | git | 456019adaa2f5366b89c868dea9b483179bece54 | Unavailable | None listed |
| c5ebcedb566ef17bda7b02686e0d658a7bb42ee7 | affected | git | 7311970d07c4606362081250da95f2c7901fc0db | Unavailable | None listed |
| c5ebcedb566ef17bda7b02686e0d658a7bb42ee7 | affected | git | 4f6fc782128355931527cefe3eb45338abd8ab39 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 3.7 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.7 | Unavailable | None listed |
| 5.4.295 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.239 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.186 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.142 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.95 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.35 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.15.4 | unaffected | semver | Unavailable | 6.15.* | None listed |
| 6.16 | unaffected | original_commit_for_fix | Unavailable | * | None listed |