Riskcovery

CVE-2024-40972

ext4: do not create EA inode under buffer lock

State
Published
Severity
Not scored
Published
Jul 12, 2024
Updated
May 11, 2026
Reserved
Jul 12, 2024

Read the record on cve.org

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • e50e5129f384ae282adebfb561189cdb19b81cee to before 0752e7fb549d90c33b4d4186f11cfd25a556d1ddAffected
  • e50e5129f384ae282adebfb561189cdb19b81cee to before 737fb7853acd5bc8984f6f42e4bfba3334be8ae1Affected
  • e50e5129f384ae282adebfb561189cdb19b81cee to before 111103907234bffd0a34fba070ad9367de058752Affected
  • e50e5129f384ae282adebfb561189cdb19b81cee to before 0a46ef234756dca04623b7591e8ebb3440622f0bAffected
LinuxLinux
  • 4.13Affected
  • before 4.13Not affected
  • 6.1.107 through 6.1.*Not affected
  • 6.6.47 through 6.6.*Not affected
  • 6.9.7 through 6.9.*Not affected
  • 6.10 and laterNot affected

References

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