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CVE-2024-44954

ALSA: line6: Fix racy access to midibuf PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: ALSA: line6: Fix racy access to midibuf There can be concurrent accesses to line6 midibuf from both the URB completion callback and the rawmidi API access. This could be a cause of KMSAN warning triggered by syzkaller below (so put as reported-by here). This patch protects the midibuf call of the former code path with a spinlock for avoiding the possible races.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 705ececd1c60d0f5d6ef2a719008847883516970 before 643293b68fbb6c03f5e907736498da17d43f0d81; affected 705ececd1c60d0f5d6ef2a719008847883516970 before 40f3d5cb0e0cbf7fa697913a27d5d361373bdcf5; affected 705ececd1c60d0f5d6ef2a719008847883516970 before e7e7d2b180d8f297cea6db43ea72402fd33e1a29; affected 705ececd1c60d0f5d6ef2a719008847883516970 before a54da4b787dcac60b598da69c9c0072812b8282d; affected 705ececd1c60d0f5d6ef2a719008847883516970 before c80f454a805443c274394b1db0d1ebf477abd94e; affected 705ececd1c60d0f5d6ef2a719008847883516970 before 535df7f896a568a8a1564114eaea49d002cb1747; affected 705ececd1c60d0f5d6ef2a719008847883516970 before 51d87f11dd199bbc6a85982b088ff27bde53b48a; affected 705ececd1c60d0f5d6ef2a719008847883516970 before 15b7a03205b31bc5623378c190d22b7ff60026f1
Linux / Linuxaffected 2.6.30; unaffected 0 before 2.6.30; unaffected 4.19.320 through 4.19.*; unaffected 5.4.282 through 5.4.*; unaffected 5.10.224 through 5.10.*; unaffected 5.15.165 through 5.15.*; unaffected 6.1.105 through 6.1.*; unaffected 6.6.46 through 6.6.*; unaffected 6.10.5 through 6.10.*; unaffected 6.11 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.