Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-23159

In the Linux kernel, the following vulnerability has been resolved: perf: sched: Fix perf crash with new is_user_task() helper In order to do a user space stacktrace the current task needs to be a user task that has executed in user space. It use to be possible to test if a task is a user task or not by simply checking the task_struct mm field. If it was non NULL, it was a user task and if not it was a kernel task. But things have changed over time, and some kernel tasks now have their own mm
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:ab6797aec4bed37f3b3aa356ba7b95d3d3021c5efc7776a5fa209bf9ccc6c584
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["include/linux/sched.h","kernel/events/callchain.c","kernel/events/core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"d84a4836dc246b7dc244e46a08ff992956b68db0","status":"affected","version":"34b5aba8511a12fb2e9bd3124835cb4087187dac","versionType":"git"},{"lessThan":"5aac392fcd3d981d7997f1a0766829e1afdeac2e","status":"affected","version":"8d79f96e477c4b8e3fca2efb36b269d8960a2285","versionType":"git"},{"lessThan":"a28fce0365e1cb9cb8c04c893b9334e5ca9d9f1c","sta…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:18991c1a0800d518b09a17d36867a0505100579ab61372f65358ad54e92a46fc · sha256:bf32ae593a64ae4c… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["include/linux/sched.h","kernel/events/callchain.c","kernel/events/core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.123","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.69","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","ver…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:18991c1a0800d518b09a17d36867a0505100579ab61372f65358ad54e92a46fc · sha256:bf32ae593a64ae4c… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["include/linux/sched.h","kernel/events/callchain.c","kernel/events/core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"d84a4836dc246b7dc244e46a08ff992956b68db0","status":"affected","version":"34b5aba8511a12fb2e9bd3124835cb4087187dac","versionType":"git"},{"lessThan":"5aac392fcd3d981d7997f1a0766829e1afdeac2e","status":"affected","version":"8d79f96e477c4b8e3fca2efb36b269d8960a2285","versionType":"git"},{"lessThan":"a28fce0365e1cb9cb8c04c893b9334e5ca9d9f1c","sta…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:18991c1a0800d518b09a17d36867a0505100579ab61372f65358ad54e92a46fc · sha256:bf32ae593a64ae4c… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["include/linux/sched.h","kernel/events/callchain.c","kernel/events/core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.123","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.69","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","ver…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:18991c1a0800d518b09a17d36867a0505100579ab61372f65358ad54e92a46fc · sha256:bf32ae593a64ae4c… · /containers/cna/affected/1

Source references

4 source assertions
{"url":"https://git.kernel.org/stable/c/5aac392fcd3d981d7997f1a0766829e1afdeac2e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:18991c1a0800d518b09a17d36867a0505100579ab61372f65358ad54e92a46fc · sha256:bf32ae593a64ae4c… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/76ed27608f7dd235b727ebbb12163438c2fbb617"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:18991c1a0800d518b09a17d36867a0505100579ab61372f65358ad54e92a46fc · sha256:bf32ae593a64ae4c… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/a28fce0365e1cb9cb8c04c893b9334e5ca9d9f1c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:18991c1a0800d518b09a17d36867a0505100579ab61372f65358ad54e92a46fc · sha256:bf32ae593a64ae4c… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/d84a4836dc246b7dc244e46a08ff992956b68db0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:18991c1a0800d518b09a17d36867a0505100579ab61372f65358ad54e92a46fc · sha256:bf32ae593a64ae4c… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

← Back to CVE Explorer