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CVE-2026-52928

In the Linux kernel, the following vulnerability has been resolved: af_unix: Reject SIOCATMARK on non-stream sockets SIOCATMARK reports whether the receive queue is at the urgent mark for MSG_OOB. In AF_UNIX, MSG_OOB is supported only for SOCK_STREAM sockets. SOCK_DGRAM and SOCK_SEQPACKET reject MSG_OOB in sendmsg() and recvmsg(), so they should not support SIOCATMARK either. Return -EOPNOTSUPP for non-stream sockets before checking the receive queue.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b618a48eb5bd513a10c023a5550bcb96d0784f225264c8f438dbbdafc6a95db4
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":["net/unix/af_unix.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.15"},{"lessThan":"5.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.211","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.177","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.144","versionType":"semver"},{"lessThanOrEq…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e77443debc8bc8e57fe94f246967116c21fec478f14bce0974171cecade8b60e · sha256:18552aaf11ff20f6… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/unix/af_unix.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"ec123873fdc83e7244c8ed6d17b8f8ea6c416a67","status":"affected","version":"314001f0bf927015e459c9d387d62a231fe93af3","versionType":"git"},{"lessThan":"f085971de6d6b8ef946a5e0bcd73ff24509a0f85","status":"affected","version":"314001f0bf927015e459c9d387d62a231fe93af3","versionType":"git"},{"lessThan":"b741c9c6ef59f17c1f104ddf1217ef77f79ed29b","status":"affected","version":"314001f0bf927015e459c9d387d…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e77443debc8bc8e57fe94f246967116c21fec478f14bce0974171cecade8b60e · sha256:18552aaf11ff20f6… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["net/unix/af_unix.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.15"},{"lessThan":"5.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.211","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.177","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.144","versionType":"semver"},{"lessThanOrEq…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e77443debc8bc8e57fe94f246967116c21fec478f14bce0974171cecade8b60e · sha256:18552aaf11ff20f6… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/unix/af_unix.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"ec123873fdc83e7244c8ed6d17b8f8ea6c416a67","status":"affected","version":"314001f0bf927015e459c9d387d62a231fe93af3","versionType":"git"},{"lessThan":"f085971de6d6b8ef946a5e0bcd73ff24509a0f85","status":"affected","version":"314001f0bf927015e459c9d387d62a231fe93af3","versionType":"git"},{"lessThan":"b741c9c6ef59f17c1f104ddf1217ef77f79ed29b","status":"affected","version":"314001f0bf927015e459c9d387d…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e77443debc8bc8e57fe94f246967116c21fec478f14bce0974171cecade8b60e · sha256:18552aaf11ff20f6… · /containers/cna/affected/0

Source references

7 source assertions
{"url":"https://git.kernel.org/stable/c/3147ddf5a41c20c45c2eb69e00b62f10f822056a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e77443debc8bc8e57fe94f246967116c21fec478f14bce0974171cecade8b60e · sha256:18552aaf11ff20f6… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/645b1ed3259af38b7814242a420bc2081bdd1eb6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e77443debc8bc8e57fe94f246967116c21fec478f14bce0974171cecade8b60e · sha256:18552aaf11ff20f6… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/b741c9c6ef59f17c1f104ddf1217ef77f79ed29b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e77443debc8bc8e57fe94f246967116c21fec478f14bce0974171cecade8b60e · sha256:18552aaf11ff20f6… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/c34c41446acf6c0d13b5b06c809be11e0f7f2729"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e77443debc8bc8e57fe94f246967116c21fec478f14bce0974171cecade8b60e · sha256:18552aaf11ff20f6… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/d119775f2bad827edc28071c061fdd4a91f889a5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e77443debc8bc8e57fe94f246967116c21fec478f14bce0974171cecade8b60e · sha256:18552aaf11ff20f6… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/ec123873fdc83e7244c8ed6d17b8f8ea6c416a67"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e77443debc8bc8e57fe94f246967116c21fec478f14bce0974171cecade8b60e · sha256:18552aaf11ff20f6… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/f085971de6d6b8ef946a5e0bcd73ff24509a0f85"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e77443debc8bc8e57fe94f246967116c21fec478f14bce0974171cecade8b60e · sha256:18552aaf11ff20f6… · /containers/cna/references/1

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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