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CVE-2026-23121

In the Linux kernel, the following vulnerability has been resolved: mISDN: annotate data-race around dev->work dev->work can re read locklessly in mISDN_read() and mISDN_poll(). Add READ_ONCE()/WRITE_ONCE() annotations. BUG: KCSAN: data-race in mISDN_ioctl / mISDN_read write to 0xffff88812d848280 of 4 bytes by task 10864 on cpu 1: misdn_add_timer drivers/isdn/mISDN/timerdev.c:175 [inline] mISDN_ioctl+0x2fb/0x550 drivers/isdn/mISDN/timerdev.c:233 vfs_ioctl fs/ioctl.c:51 [inline] __do_
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:19888034726ccb13fb147125ea6cfaba461b33567b98195715b8b3c86d4a0133
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":"affected","product":"Linux","programFiles":["drivers/isdn/mISDN/timerdev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.27"},{"lessThan":"2.6.27","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.249","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.199","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.162","versionType":"semver…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f511c966bf19e357070e2766024551e7f36d99e92b72a2b60e2323654e990803 · sha256:fa2ca3f13cf0e8fe… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/isdn/mISDN/timerdev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"d5d99cb9e0839093cd53aa3b28176fce2f820ca0","status":"affected","version":"1b2b03f8e514e4f68e293846ba511a948b80243c","versionType":"git"},{"lessThan":"13f3b3b87068898056db4c79ee67052fbde11d43","status":"affected","version":"1b2b03f8e514e4f68e293846ba511a948b80243c","versionType":"git"},{"lessThan":"accc3f8266d2a49881dbcf78c459477f4efa0ff3","status":"affected","version":"1b2b03f8e514e4f6…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f511c966bf19e357070e2766024551e7f36d99e92b72a2b60e2323654e990803 · sha256:fa2ca3f13cf0e8fe… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/isdn/mISDN/timerdev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.27"},{"lessThan":"2.6.27","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.249","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.199","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.162","versionType":"semver…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f511c966bf19e357070e2766024551e7f36d99e92b72a2b60e2323654e990803 · sha256:fa2ca3f13cf0e8fe… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/isdn/mISDN/timerdev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"d5d99cb9e0839093cd53aa3b28176fce2f820ca0","status":"affected","version":"1b2b03f8e514e4f68e293846ba511a948b80243c","versionType":"git"},{"lessThan":"13f3b3b87068898056db4c79ee67052fbde11d43","status":"affected","version":"1b2b03f8e514e4f68e293846ba511a948b80243c","versionType":"git"},{"lessThan":"accc3f8266d2a49881dbcf78c459477f4efa0ff3","status":"affected","version":"1b2b03f8e514e4f6…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f511c966bf19e357070e2766024551e7f36d99e92b72a2b60e2323654e990803 · sha256:fa2ca3f13cf0e8fe… · /containers/cna/affected/0

Source references

7 source assertions
{"url":"https://git.kernel.org/stable/c/13f3b3b87068898056db4c79ee67052fbde11d43"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f511c966bf19e357070e2766024551e7f36d99e92b72a2b60e2323654e990803 · sha256:fa2ca3f13cf0e8fe… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/7ac345a93af31358e18e9606eb7b354691bf6757"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f511c966bf19e357070e2766024551e7f36d99e92b72a2b60e2323654e990803 · sha256:fa2ca3f13cf0e8fe… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/8175dbf174d487afab81e936a862a8d9b8a1ccb6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f511c966bf19e357070e2766024551e7f36d99e92b72a2b60e2323654e990803 · sha256:fa2ca3f13cf0e8fe… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/aa6e33cd74ca4965f2bbcb025e0b672fb0168a69"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f511c966bf19e357070e2766024551e7f36d99e92b72a2b60e2323654e990803 · sha256:fa2ca3f13cf0e8fe… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/accc3f8266d2a49881dbcf78c459477f4efa0ff3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f511c966bf19e357070e2766024551e7f36d99e92b72a2b60e2323654e990803 · sha256:fa2ca3f13cf0e8fe… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/d5d99cb9e0839093cd53aa3b28176fce2f820ca0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f511c966bf19e357070e2766024551e7f36d99e92b72a2b60e2323654e990803 · sha256:fa2ca3f13cf0e8fe… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/fc8ba17fd3337bd8b1913c30b95df0fee00d8fb7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f511c966bf19e357070e2766024551e7f36d99e92b72a2b60e2323654e990803 · sha256:fa2ca3f13cf0e8fe… · /containers/cna/references/3

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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