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CVE-2026-23275

In the Linux kernel, the following vulnerability has been resolved: io_uring: ensure ctx->rings is stable for task work flags manipulation If DEFER_TASKRUN | SETUP_TASKRUN is used and task work is added while the ring is being resized, it's possible for the OR'ing of IORING_SQ_TASKRUN to happen in the small window of swapping into the new rings and the old rings being freed. Prevent this by adding a 2nd ->rings pointer, ->rings_rcu, which is protected by RCU. The task work flags manipulation
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:3b8888d295d0728e3b453ba481d0cf7f69de8d2aa981e4e3c59c68d4b1c70f65
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":["include/linux/io_uring_types.h","io_uring/io_uring.c","io_uring/register.c","io_uring/tw.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"7cc4530b3e952d4a5947e1e55d06620d8845d4f5","status":"affected","version":"79cfe9e59c2a12c3b3faeeefe38d23f3d8030972","versionType":"git"},{"lessThan":"46dc07d5f31411cc023f3bf1f4a23a07bf6e0ed1","status":"affected","version":"79cfe9e59c2a12c3b3faeeefe38d23f3d8030972","versionType":"git"},{"lessThan":"96189080265e6bb5dde3a4afbaf9…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f326e97584be9894256934ece8e26a7eeb6e3d4fc1aa014011adcc71f1f60e07 · sha256:4dc88d3dd8bf194e… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["include/linux/io_uring_types.h","io_uring/io_uring.c","io_uring/register.c","io_uring/tw.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.13"},{"lessThan":"6.13","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.19","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"una…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f326e97584be9894256934ece8e26a7eeb6e3d4fc1aa014011adcc71f1f60e07 · sha256:4dc88d3dd8bf194e… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["include/linux/io_uring_types.h","io_uring/io_uring.c","io_uring/register.c","io_uring/tw.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"7cc4530b3e952d4a5947e1e55d06620d8845d4f5","status":"affected","version":"79cfe9e59c2a12c3b3faeeefe38d23f3d8030972","versionType":"git"},{"lessThan":"46dc07d5f31411cc023f3bf1f4a23a07bf6e0ed1","status":"affected","version":"79cfe9e59c2a12c3b3faeeefe38d23f3d8030972","versionType":"git"},{"lessThan":"96189080265e6bb5dde3a4afbaf9…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f326e97584be9894256934ece8e26a7eeb6e3d4fc1aa014011adcc71f1f60e07 · sha256:4dc88d3dd8bf194e… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["include/linux/io_uring_types.h","io_uring/io_uring.c","io_uring/register.c","io_uring/tw.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.13"},{"lessThan":"6.13","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.19","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"una…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f326e97584be9894256934ece8e26a7eeb6e3d4fc1aa014011adcc71f1f60e07 · sha256:4dc88d3dd8bf194e… · /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:f326e97584be9894256934ece8e26a7eeb6e3d4fc1aa014011adcc71f1f60e07 · sha256:4dc88d3dd8bf194e… · /containers/cna/metrics/0/cvssV3_1

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/46dc07d5f31411cc023f3bf1f4a23a07bf6e0ed1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f326e97584be9894256934ece8e26a7eeb6e3d4fc1aa014011adcc71f1f60e07 · sha256:4dc88d3dd8bf194e… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/7cc4530b3e952d4a5947e1e55d06620d8845d4f5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f326e97584be9894256934ece8e26a7eeb6e3d4fc1aa014011adcc71f1f60e07 · sha256:4dc88d3dd8bf194e… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/96189080265e6bb5dde3a4afbaf947af493e3f82"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f326e97584be9894256934ece8e26a7eeb6e3d4fc1aa014011adcc71f1f60e07 · sha256:4dc88d3dd8bf194e… · /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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