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CVE-2026-46159

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix btrfs_ioctl_space_info() slot_count TOCTOU which can lead to info-leak btrfs_ioctl_space_info() has a TOCTOU race between two passes over the block group RAID type lists. The first pass counts entries to determine the allocation size, then the second pass fills the buffer. The groups_sem rwlock is released between passes, allowing concurrent block group removal to reduce the entry count. When the second pass fills
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:fe452e182cbc3858313328fa1ea798172fe212f39fca75107cd731c891c6ab81
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/btrfs/ioctl.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"f407aad350bdea4db300c47433573b7a41630d33","status":"affected","version":"7fde62bffb576d384ea49a3aed3403d5609ee5bc","versionType":"git"},{"lessThan":"d8224b1be6627c6c3b204bfb264508d27c65ac44","status":"affected","version":"7fde62bffb576d384ea49a3aed3403d5609ee5bc","versionType":"git"},{"lessThan":"d69a4a6813fdba7c4cc3695a7e843842b240790d","status":"affected","version":"7fde62bffb576d384ea49a3aed340…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a6d73a118e581245fc0ae08cb6411fb4124cc7f08960d1c40245c15a573380be · sha256:86e06edcdd13fcad… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/btrfs/ioctl.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.34"},{"lessThan":"2.6.34","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThan…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a6d73a118e581245fc0ae08cb6411fb4124cc7f08960d1c40245c15a573380be · sha256:86e06edcdd13fcad… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/btrfs/ioctl.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"f407aad350bdea4db300c47433573b7a41630d33","status":"affected","version":"7fde62bffb576d384ea49a3aed3403d5609ee5bc","versionType":"git"},{"lessThan":"d8224b1be6627c6c3b204bfb264508d27c65ac44","status":"affected","version":"7fde62bffb576d384ea49a3aed3403d5609ee5bc","versionType":"git"},{"lessThan":"d69a4a6813fdba7c4cc3695a7e843842b240790d","status":"affected","version":"7fde62bffb576d384ea49a3aed340…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a6d73a118e581245fc0ae08cb6411fb4124cc7f08960d1c40245c15a573380be · sha256:86e06edcdd13fcad… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/btrfs/ioctl.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.34"},{"lessThan":"2.6.34","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThan…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a6d73a118e581245fc0ae08cb6411fb4124cc7f08960d1c40245c15a573380be · sha256:86e06edcdd13fcad… · /containers/cna/affected/1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/4fdc6ee0802121d9cd96b8d085e589f51e5a4ec3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a6d73a118e581245fc0ae08cb6411fb4124cc7f08960d1c40245c15a573380be · sha256:86e06edcdd13fcad… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/5d12e0ab009ade48c1bff9324fd9bea2c773d088"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a6d73a118e581245fc0ae08cb6411fb4124cc7f08960d1c40245c15a573380be · sha256:86e06edcdd13fcad… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/973e57c726c1f8e77259d1c8e519519f1e9aea77"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a6d73a118e581245fc0ae08cb6411fb4124cc7f08960d1c40245c15a573380be · sha256:86e06edcdd13fcad… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/d09d67d5de577cedae3de9497dff217e0ac8b641"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a6d73a118e581245fc0ae08cb6411fb4124cc7f08960d1c40245c15a573380be · sha256:86e06edcdd13fcad… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/d69a4a6813fdba7c4cc3695a7e843842b240790d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a6d73a118e581245fc0ae08cb6411fb4124cc7f08960d1c40245c15a573380be · sha256:86e06edcdd13fcad… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/d8224b1be6627c6c3b204bfb264508d27c65ac44"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a6d73a118e581245fc0ae08cb6411fb4124cc7f08960d1c40245c15a573380be · sha256:86e06edcdd13fcad… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/f407aad350bdea4db300c47433573b7a41630d33"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a6d73a118e581245fc0ae08cb6411fb4124cc7f08960d1c40245c15a573380be · sha256:86e06edcdd13fcad… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/f5ee467b56764964027c361641f64953fc0f8f9a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a6d73a118e581245fc0ae08cb6411fb4124cc7f08960d1c40245c15a573380be · sha256:86e06edcdd13fcad… · /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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