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CVE-2026-31551

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: Fix static_branch_dec() underflow for aql_disable. syzbot reported static_branch_dec() underflow in aql_enable_write(). [0] The problem is that aql_enable_write() does not serialise concurrent write()s to the debugfs. aql_enable_write() checks static_key_false(&aql_disable.key) and later calls static_branch_inc() or static_branch_dec(), but the state may change between the two calls. aql_disable does not nee
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:83b7fc7704821e16f597b72ea156eae795009f94b433262e267749fae343f8f1
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":["net/mac80211/debugfs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"787152497ac763deab16f6f4b7ce79aaeb3eb7e8","status":"affected","version":"e908435e402aff23c9b0b3c59c7cd12b08b681b0","versionType":"git"},{"lessThan":"8bb90ff77326c34e75b573b1febdd9586fec5aba","status":"affected","version":"e908435e402aff23c9b0b3c59c7cd12b08b681b0","versionType":"git"},{"lessThan":"256f7d4c11235d0569f78413c41dc89d2dc1557c","status":"affected","version":"e908435e402aff23c9b0b3c…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:29c33fe9d4f4b5f696451ce33f4d1d323c4433da3abf11ab6b1d2bfbe78421ce · sha256:8df7d23d48deaf70… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["net/mac80211/debugfs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.12"},{"lessThan":"5.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.130","versionType":"semver"},{"lessThan…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:29c33fe9d4f4b5f696451ce33f4d1d323c4433da3abf11ab6b1d2bfbe78421ce · sha256:8df7d23d48deaf70… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/mac80211/debugfs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"787152497ac763deab16f6f4b7ce79aaeb3eb7e8","status":"affected","version":"e908435e402aff23c9b0b3c59c7cd12b08b681b0","versionType":"git"},{"lessThan":"8bb90ff77326c34e75b573b1febdd9586fec5aba","status":"affected","version":"e908435e402aff23c9b0b3c59c7cd12b08b681b0","versionType":"git"},{"lessThan":"256f7d4c11235d0569f78413c41dc89d2dc1557c","status":"affected","version":"e908435e402aff23c9b0b3c…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:29c33fe9d4f4b5f696451ce33f4d1d323c4433da3abf11ab6b1d2bfbe78421ce · sha256:8df7d23d48deaf70… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["net/mac80211/debugfs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.12"},{"lessThan":"5.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.130","versionType":"semver"},{"lessThan…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:29c33fe9d4f4b5f696451ce33f4d1d323c4433da3abf11ab6b1d2bfbe78421ce · sha256:8df7d23d48deaf70… · /containers/cna/affected/1

Source references

7 source assertions
{"url":"https://git.kernel.org/stable/c/256f7d4c11235d0569f78413c41dc89d2dc1557c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:29c33fe9d4f4b5f696451ce33f4d1d323c4433da3abf11ab6b1d2bfbe78421ce · sha256:8df7d23d48deaf70… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/29a1a350afcd28a2150bd73b8bd83eac3480f13e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:29c33fe9d4f4b5f696451ce33f4d1d323c4433da3abf11ab6b1d2bfbe78421ce · sha256:8df7d23d48deaf70… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/5ba05436f15d16ae7ab04b880e8bf8d440be892b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:29c33fe9d4f4b5f696451ce33f4d1d323c4433da3abf11ab6b1d2bfbe78421ce · sha256:8df7d23d48deaf70… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/787152497ac763deab16f6f4b7ce79aaeb3eb7e8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:29c33fe9d4f4b5f696451ce33f4d1d323c4433da3abf11ab6b1d2bfbe78421ce · sha256:8df7d23d48deaf70… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/8bb90ff77326c34e75b573b1febdd9586fec5aba"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:29c33fe9d4f4b5f696451ce33f4d1d323c4433da3abf11ab6b1d2bfbe78421ce · sha256:8df7d23d48deaf70… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/b24763d32d5b4ada766deca4b42d6766272fef0c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:29c33fe9d4f4b5f696451ce33f4d1d323c4433da3abf11ab6b1d2bfbe78421ce · sha256:8df7d23d48deaf70… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/b94ae8e0d5fe1bdbbfdc3854ff6ce98f6876a828"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:29c33fe9d4f4b5f696451ce33f4d1d323c4433da3abf11ab6b1d2bfbe78421ce · sha256:8df7d23d48deaf70… · /containers/cna/references/6

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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