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CVE-2026-43499

In the Linux kernel, the following vulnerability has been resolved: rtmutex: Use waiter::task instead of current in remove_waiter() remove_waiter() is used by the slowlock paths, but it is also used for proxy-lock rollback in rt_mutex_start_proxy_lock() when invoked from futex_requeue(). In the latter case waiter::task is not current, but remove_waiter() operates on current for the dequeue operation. That results in several problems: 1) the rbtree dequeue happens without waiter::task::pi_l
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:c9506fa367ea0f31e5e690732bb913fb73aa625f4cb96be0d46a1c8966a9f37b
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":["kernel/locking/rtmutex.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"f3fa3424bceb128d2be4b3745506b22844b87db7","status":"affected","version":"8161239a8bcce9ad6b537c04a1fa3b5c68bae693","versionType":"git"},{"lessThan":"838ce5cb5d93c3ab8b27e75bc6ad905a94b752fd","status":"affected","version":"8161239a8bcce9ad6b537c04a1fa3b5c68bae693","versionType":"git"},{"lessThan":"d8cce4773c2b23d819baf5abedc62f7b430e8745","status":"affected","version":"8161239a8bcce9ad6b537…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1b7a7edb7fb1ea62760b45805a6caf0febc2a140be0e614aca247d0d44774294 · sha256:e93e324d2ac246e9… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["kernel/locking/rtmutex.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.39"},{"lessThan":"2.6.39","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.261","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1b7a7edb7fb1ea62760b45805a6caf0febc2a140be0e614aca247d0d44774294 · sha256:e93e324d2ac246e9… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/locking/rtmutex.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"f3fa3424bceb128d2be4b3745506b22844b87db7","status":"affected","version":"8161239a8bcce9ad6b537c04a1fa3b5c68bae693","versionType":"git"},{"lessThan":"838ce5cb5d93c3ab8b27e75bc6ad905a94b752fd","status":"affected","version":"8161239a8bcce9ad6b537c04a1fa3b5c68bae693","versionType":"git"},{"lessThan":"d8cce4773c2b23d819baf5abedc62f7b430e8745","status":"affected","version":"8161239a8bcce9ad6b537…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1b7a7edb7fb1ea62760b45805a6caf0febc2a140be0e614aca247d0d44774294 · sha256:e93e324d2ac246e9… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["kernel/locking/rtmutex.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.39"},{"lessThan":"2.6.39","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.261","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1b7a7edb7fb1ea62760b45805a6caf0febc2a140be0e614aca247d0d44774294 · sha256:e93e324d2ac246e9… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:1b7a7edb7fb1ea62760b45805a6caf0febc2a140be0e614aca247d0d44774294 · sha256:e93e324d2ac246e9… · /containers/cna/metrics/0/cvssV3_1

Source references

9 source assertions
{"url":"http://www.openwall.com/lists/oss-security/2026/07/08/12"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1b7a7edb7fb1ea62760b45805a6caf0febc2a140be0e614aca247d0d44774294 · sha256:e93e324d2ac246e9… · /containers/adp/0/references/0
{"url":"https://git.kernel.org/stable/c/3bfdc63936dd4773109b7b8c280c0f3b5ae7d349"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1b7a7edb7fb1ea62760b45805a6caf0febc2a140be0e614aca247d0d44774294 · sha256:e93e324d2ac246e9… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/3fb7394a837740770f0d6b4b30567e60786a63f2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1b7a7edb7fb1ea62760b45805a6caf0febc2a140be0e614aca247d0d44774294 · sha256:e93e324d2ac246e9… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/6d52dfcb2a5db86e346cf51f8fcf2071b8085166"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1b7a7edb7fb1ea62760b45805a6caf0febc2a140be0e614aca247d0d44774294 · sha256:e93e324d2ac246e9… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/838ce5cb5d93c3ab8b27e75bc6ad905a94b752fd"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1b7a7edb7fb1ea62760b45805a6caf0febc2a140be0e614aca247d0d44774294 · sha256:e93e324d2ac246e9… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/88614876370aac8ad1050ad785a4c095ba17ac11"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1b7a7edb7fb1ea62760b45805a6caf0febc2a140be0e614aca247d0d44774294 · sha256:e93e324d2ac246e9… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/8a1fc8d698ac5e5916e3082a0f74450d71f9611f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1b7a7edb7fb1ea62760b45805a6caf0febc2a140be0e614aca247d0d44774294 · sha256:e93e324d2ac246e9… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/d8cce4773c2b23d819baf5abedc62f7b430e8745"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1b7a7edb7fb1ea62760b45805a6caf0febc2a140be0e614aca247d0d44774294 · sha256:e93e324d2ac246e9… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/f3fa3424bceb128d2be4b3745506b22844b87db7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1b7a7edb7fb1ea62760b45805a6caf0febc2a140be0e614aca247d0d44774294 · sha256:e93e324d2ac246e9… · /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.

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