CVE-2022-49815

Description

In the Linux kernel, the following vulnerability has been resolved: erofs: fix missing xas_retry() in fscache mode The xarray iteration only holds the RCU read lock and thus may encounter XA_RETRY_ENTRY if there's process modifying the xarray concurrently. This will cause oops when referring to the invalid entry. Fix this by adding the missing xas_retry(), which will make the iteration wind back to the root node if XA_RETRY_ENTRY is encountered.

Reserved 2025-05-01 | Published 2025-05-01 | Updated 2025-05-04 | Assigner Linux

Product status

Default status
unaffected

d435d53228dd039fffecae123b8c138af6f96f99 before dbc98fe99e17ed18f2f272d5fe880d844b1c68c3
affected

d435d53228dd039fffecae123b8c138af6f96f99 before 37020bbb71d911431e16c2c940b97cf86ae4f2f6
affected

Default status
affected

5.19
affected

Any version before 5.19
unaffected

6.0.10
unaffected

6.1
unaffected

References

git.kernel.org/...c/dbc98fe99e17ed18f2f272d5fe880d844b1c68c3

git.kernel.org/...c/37020bbb71d911431e16c2c940b97cf86ae4f2f6

cve.org (CVE-2022-49815)

nvd.nist.gov (CVE-2022-49815)

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