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CVE-2022-50329

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CVE-2022-50329

Published: Sep 15, 2025

Modified: May 11, 2026

PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix uaf for bfqq in bfq_exit_icq_bfqq Commit 64dc8c732f5c ("block, bfq: fix possible uaf for 'bfqq->bic'") will access 'bic->bfqq' in bic_set_bfqq(), however, bfq_exit_icq_bfqq() can free bfqq first, and then call bic_set_bfqq(), which will cause uaf. Fix the problem by moving bfq_exit_bfqq() behind bic_set_bfqq().

VendorProductVersions

Linux

Linux

affected
5533742c7cb1bc9b1f0bf401cc397d44a3a9e07a - < 1425f1bb5df5239021fd09ebc2a5e8070e705d36
affected
094f3d9314d67691cb21ba091c1b528f6e3c4893 - < 7949b0df3dd9f4817ed4a4e989fa9ee81df6205f
affected
b22fd72bfebda3956efc4431b60ddfc0a51e03e0 - < cfe5b38c37720313eff0dec5517442c7ab3c9a20
affected
761564d93c8265f65543acf0a576b32d66bfa26a - < 1ed959fef5b1c6f1a7a3fbea543698c30ebd6678
affected
64dc8c732f5c2b406cc752e6aaa1bd5471159cab - < 246cf66e300b76099b5dbd3fdd39e9a5dbc53f02

Linux

Linux

affected
5.15.86 - < 5.15.87
affected
6.0.16 - < 6.0.17
affected
6.1.2 - < 6.1.3

References

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