Deadlock The advisory has been revoked - it doesn't affect any version of package kernel-rt-selftests-internal (opens in a new tab)
Threat Intelligence
Exploit maturity not defined.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL8-KERNELRTSELFTESTSINTERNAL-7512096
- published17 Jul 2024
- disclosed12 Jul 2024
Introduced: 12 Jul 2024
CVE-2024-40972 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:8.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-selftests-internal package and not the kernel-rt-selftests-internal package as distributed by RHEL.
In the Linux kernel, the following vulnerability has been resolved:
ext4: do not create EA inode under buffer lock
ext4_xattr_set_entry() creates new EA inodes while holding buffer lock on the external xattr block. This is problematic as it nests all the allocation locking (which acquires locks on other buffers) under the buffer lock. This can even deadlock when the filesystem is corrupted and e.g. quota file is setup to contain xattr block as data block. Move the allocation of EA inode out of ext4_xattr_set_entry() into the callers.
References
- https://access.redhat.com/security/cve/CVE-2024-40972
- https://git.kernel.org/stable/c/0752e7fb549d90c33b4d4186f11cfd25a556d1dd
- https://git.kernel.org/stable/c/737fb7853acd5bc8984f6f42e4bfba3334be8ae1
- https://git.kernel.org/stable/c/0a46ef234756dca04623b7591e8ebb3440622f0b
- https://git.kernel.org/stable/c/111103907234bffd0a34fba070ad9367de058752