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CVE-2026-45895

In the Linux kernel, the following vulnerability has been resolved: quota: fix livelock between quotactl and freeze_super When a filesystem is frozen, quotactl_block() enters a retry loop waiting for the filesystem to thaw. It acquires s_umount, checks the freeze state, drops s_umount and uses sb_start_write() - sb_end_write() pair to wait for the unfreeze. However, this retry loop can trigger a livelock issue, specifically on kernels with preemption disabled. The mechanism is as follows: 1.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:dc5f72210155bbc54f97f0faed4602e05508ac6a9e94878eb507b495a933d298
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":["fs/quota/quota.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"37ccd48cf35f3c8b9f2ea961a7b486b91eb71a82","status":"affected","version":"576215cffdefc1f0ceebffd87abb390926e6b037","versionType":"git"},{"lessThan":"414259caf81a397563fc9baca9c0ef856c4a97cf","status":"affected","version":"576215cffdefc1f0ceebffd87abb390926e6b037","versionType":"git"},{"lessThan":"02bb1500f1479750e6557c8044f6a2d7e9d30c12","status":"affected","version":"576215cffdefc1f0ceebffd87abb3…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e4be49580d862c0ad9ff619f9ff4e0ed934268d1db00baf37fd6944171bdafda · sha256:877653bac73533a0… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/quota/quota.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.5"},{"lessThan":"6.5","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.128","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.75","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.14","versionType":"semver"},{"lessThanOrEqual"…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e4be49580d862c0ad9ff619f9ff4e0ed934268d1db00baf37fd6944171bdafda · sha256:877653bac73533a0… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/quota/quota.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"37ccd48cf35f3c8b9f2ea961a7b486b91eb71a82","status":"affected","version":"576215cffdefc1f0ceebffd87abb390926e6b037","versionType":"git"},{"lessThan":"414259caf81a397563fc9baca9c0ef856c4a97cf","status":"affected","version":"576215cffdefc1f0ceebffd87abb390926e6b037","versionType":"git"},{"lessThan":"02bb1500f1479750e6557c8044f6a2d7e9d30c12","status":"affected","version":"576215cffdefc1f0ceebffd87abb3…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e4be49580d862c0ad9ff619f9ff4e0ed934268d1db00baf37fd6944171bdafda · sha256:877653bac73533a0… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/quota/quota.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.5"},{"lessThan":"6.5","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.128","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.75","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.14","versionType":"semver"},{"lessThanOrEqual"…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e4be49580d862c0ad9ff619f9ff4e0ed934268d1db00baf37fd6944171bdafda · sha256:877653bac73533a0… · /containers/cna/affected/1

Source references

5 source assertions
{"url":"https://git.kernel.org/stable/c/02bb1500f1479750e6557c8044f6a2d7e9d30c12"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e4be49580d862c0ad9ff619f9ff4e0ed934268d1db00baf37fd6944171bdafda · sha256:877653bac73533a0… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/37ccd48cf35f3c8b9f2ea961a7b486b91eb71a82"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e4be49580d862c0ad9ff619f9ff4e0ed934268d1db00baf37fd6944171bdafda · sha256:877653bac73533a0… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/414259caf81a397563fc9baca9c0ef856c4a97cf"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e4be49580d862c0ad9ff619f9ff4e0ed934268d1db00baf37fd6944171bdafda · sha256:877653bac73533a0… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/53b2314b26b6640a3657cc924de63a1a8f26ac4d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e4be49580d862c0ad9ff619f9ff4e0ed934268d1db00baf37fd6944171bdafda · sha256:877653bac73533a0… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/77449e453dfc006ad738dec55374c4cbc056fd39"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e4be49580d862c0ad9ff619f9ff4e0ed934268d1db00baf37fd6944171bdafda · sha256:877653bac73533a0… · /containers/cna/references/4

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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