CVE-2023-54197: Linux

EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: Revert "Bluetooth: btsdio: fix use after free bug in btsdio_remove due to unfinished work" This reverts commit 1e9ac114c4428fdb7ff4635b45d4f46017e8916f. This patch introduces a possible null-ptr-def problem. Revert it. And the fixed bug by this patch have resolved by commit 73f7b171b7c0 ("Bluetooth: btsdio: fix use after free bug in btsdio_remove due to race condition").

Affected products

• Linux Linux: from 4.14.312, before 4.14.315 (fixed in 4.14.315); from 4.19.280, before 4.19.283 (fixed in 4.19.283); from 5.4.240, before 5.4.243 (fixed in 5.4.243); from 5.10.177, before 5.10.180 (fixed in 5.10.180); from 5.15.105, before 5.15.111 (fixed in 5.15.111); from 6.1.22, before 6.1.28 (fixed in 6.1.28); …

Published 2025-12-30. Last modified 2026-06-17.