CVE-2024-27058
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-27058
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-27058.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2024-27058
- Downstream
- Published
- 2024-05-01T13:00:06Z
- Modified
- 2025-10-21T20:49:49.480277Z
- Severity
-
- 4.7 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
- Summary
- tmpfs: fix race on handling dquot rbtree
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
tmpfs: fix race on handling dquot rbtree
A syzkaller reproducer found a race while attempting to remove dquot information from the rb tree.
Fetching the rbtree root node must also be protected by the dqopt->dqiosem, otherwise, giving the right timing, shmemreleasedquot() will trigger a warning because it couldn't find a node in the tree, when the real reason was the root node changing before the search starts:
Thread 1 Thread 2 - shmemreleasedquot() - shmem{acquire,release}dquot()
fetch ROOT - Fetch ROOT
- acquire dqio_semwait dqio_sem
- do something, triger a tree rebalance - release dqio_semacquire dqio_sem
- start searching for the node, but from the wrong location, missing the node, and triggering a warning.
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/0a69b6b3a026543bc215ccc866d0aea5579e6ce2
- https://git.kernel.org/stable/c/617d55b90e73c7b4aa2733ca6cc3f9b72d1124bb
- https://git.kernel.org/stable/c/c7077f43f30d817d10a9f8245e51576ac114b2f0
- https://git.kernel.org/stable/c/f82f184874d2761ebaa60dccf577921a0dbb3810
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedeafc474e202978ac735c551d5ee1eb8c02e2be54Fixedc7077f43f30d817d10a9f8245e51576ac114b2f0
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedeafc474e202978ac735c551d5ee1eb8c02e2be54Fixed617d55b90e73c7b4aa2733ca6cc3f9b72d1124bb
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedeafc474e202978ac735c551d5ee1eb8c02e2be54Fixedf82f184874d2761ebaa60dccf577921a0dbb3810
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedeafc474e202978ac735c551d5ee1eb8c02e2be54Fixed0a69b6b3a026543bc215ccc866d0aea5579e6ce2
Affected versions
v6.*
v6.5
v6.5-rc5
v6.5-rc6
v6.5-rc7
v6.6
v6.6-rc1
v6.6-rc2
v6.6-rc3
v6.6-rc4
v6.6-rc5
v6.6-rc6
v6.6-rc7
v6.6.1
v6.6.10
v6.6.11
v6.6.12
v6.6.13
v6.6.14
v6.6.15
v6.6.16
v6.6.17
v6.6.18
v6.6.19
v6.6.2
v6.6.20
v6.6.21
v6.6.22
v6.6.23
v6.6.3
v6.6.4
v6.6.5
v6.6.6
v6.6.7
v6.6.8
v6.6.9
v6.7
v6.7-rc1
v6.7-rc2
v6.7-rc3
v6.7-rc4
v6.7-rc5
v6.7-rc6
v6.7-rc7
v6.7-rc8
v6.7.1
v6.7.10
v6.7.11
v6.7.2
v6.7.3
v6.7.4
v6.7.5
v6.7.6
v6.7.7
v6.7.8
v6.7.9
v6.8
v6.8-rc1
v6.8-rc2
v6.8-rc3
v6.8-rc4
v6.8-rc5
v6.8-rc6
v6.8-rc7
v6.8.1
v6.8.2
v6.9-rc1