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CVE-2026-43292

In the Linux kernel, the following vulnerability has been resolved: mm/vmalloc: prevent RCU stalls in kasan_release_vmalloc_node When CONFIG_PAGE_OWNER is enabled, freeing KASAN shadow pages during vmalloc cleanup triggers expensive stack unwinding that acquires RCU read locks. Processing a large purge_list without rescheduling can cause the task to hold CPU for extended periods (10+ seconds), leading to RCU stalls and potential OOM conditions. The issue manifests in purge_vmap_node() -> kas
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:6ae8e8909803c85774c914f3a509bc7a2c491e5d01b5300eb3940f38b928340f
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":["mm/vmalloc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"2efa9c02c9b4c0d6866aa445f11056809b25ca28","status":"affected","version":"282631cb2447318e2a55b41a665dbe8571c46d70","versionType":"git"},{"lessThan":"1afe45f89d54b7183768ebbbbf14238ec187ab5c","status":"affected","version":"282631cb2447318e2a55b41a665dbe8571c46d70","versionType":"git"},{"lessThan":"b351fbe71091f7c8676c8ba597653d08b6719447","status":"affected","version":"282631cb2447318e2a55b41a665dbe857…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3d649b0320f19bef919c3a41f48aed4f51dd6185ef9b19f1eaa4795c1b89e032 · sha256:02eff0b2b0878fed… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["mm/vmalloc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.9"},{"lessThan":"6.9","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.75","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.16","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.6","versionType":"semver"},{"lessThanOrEqual":"*"…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3d649b0320f19bef919c3a41f48aed4f51dd6185ef9b19f1eaa4795c1b89e032 · sha256:02eff0b2b0878fed… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["mm/vmalloc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"2efa9c02c9b4c0d6866aa445f11056809b25ca28","status":"affected","version":"282631cb2447318e2a55b41a665dbe8571c46d70","versionType":"git"},{"lessThan":"1afe45f89d54b7183768ebbbbf14238ec187ab5c","status":"affected","version":"282631cb2447318e2a55b41a665dbe8571c46d70","versionType":"git"},{"lessThan":"b351fbe71091f7c8676c8ba597653d08b6719447","status":"affected","version":"282631cb2447318e2a55b41a665dbe857…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3d649b0320f19bef919c3a41f48aed4f51dd6185ef9b19f1eaa4795c1b89e032 · sha256:02eff0b2b0878fed… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["mm/vmalloc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.9"},{"lessThan":"6.9","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.75","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.16","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.6","versionType":"semver"},{"lessThanOrEqual":"*"…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3d649b0320f19bef919c3a41f48aed4f51dd6185ef9b19f1eaa4795c1b89e032 · sha256:02eff0b2b0878fed… · /containers/cna/affected/1

Source references

4 source assertions
{"url":"https://git.kernel.org/stable/c/1afe45f89d54b7183768ebbbbf14238ec187ab5c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3d649b0320f19bef919c3a41f48aed4f51dd6185ef9b19f1eaa4795c1b89e032 · sha256:02eff0b2b0878fed… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/2efa9c02c9b4c0d6866aa445f11056809b25ca28"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3d649b0320f19bef919c3a41f48aed4f51dd6185ef9b19f1eaa4795c1b89e032 · sha256:02eff0b2b0878fed… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/5747435e0fd474c24530ef1a6822f47e7d264b27"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3d649b0320f19bef919c3a41f48aed4f51dd6185ef9b19f1eaa4795c1b89e032 · sha256:02eff0b2b0878fed… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/b351fbe71091f7c8676c8ba597653d08b6719447"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3d649b0320f19bef919c3a41f48aed4f51dd6185ef9b19f1eaa4795c1b89e032 · sha256:02eff0b2b0878fed… · /containers/cna/references/2

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.

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