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CVE-2022-50329

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().

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Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version < 1425f1bb5df5239021fd09ebc2a5e8070e705d36
Version 5533742c7cb1bc9b1f0bf401cc397d44a3a9e07a
Status affected
Version < 7949b0df3dd9f4817ed4a4e989fa9ee81df6205f
Version 094f3d9314d67691cb21ba091c1b528f6e3c4893
Status affected
Version < cfe5b38c37720313eff0dec5517442c7ab3c9a20
Version b22fd72bfebda3956efc4431b60ddfc0a51e03e0
Status affected
Version < 1ed959fef5b1c6f1a7a3fbea543698c30ebd6678
Version 761564d93c8265f65543acf0a576b32d66bfa26a
Status affected
Version < 246cf66e300b76099b5dbd3fdd39e9a5dbc53f02
Version 64dc8c732f5c2b406cc752e6aaa1bd5471159cab
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version < 5.15.87
Version 5.15.86
Status affected
Version < 6.0.17
Version 6.0.16
Status affected
Version < 6.1.3
Version 6.1.2
Status affected
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.02% 0.048
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String