CVE-2024-40972

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.
CVSS

No CVSS.

Configurations

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History

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Information

Published : 2024-07-12 13:15

Updated : 2024-07-12 16:34


NVD link : CVE-2024-40972

Mitre link : CVE-2024-40972

CVE.ORG link : CVE-2024-40972


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Products Affected

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CWE

No CWE.