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CVE-2022-49493

ASoC: rt5645: Fix errorenous cleanup order PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: ASoC: rt5645: Fix errorenous cleanup order There is a logic error when removing rt5645 device as the function rt5645_i2c_remove() first cancel the &rt5645->jack_detect_work and delete the &rt5645->btn_check_timer latter. However, since the timer handler rt5645_btn_check_callback() will re-queue the jack_detect_work, this cleanup order is buggy. That is, once the del_timer_sync in rt5645_i2c_remove is concurrently run with the rt5645_btn_check_callback, the canceled jack_detect_work will be rescheduled again, leading to possible use-after-free. This patch fix the issue by placing the del_timer_sync function before the cancel_delayed_work_sync.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected a6ff8ddcf3f38ec84337e5e7eb3e0e9a73754cf5 before 236d29c5857f02e0a53fdf15d3dce1536c4322ce; affected a6ff8ddcf3f38ec84337e5e7eb3e0e9a73754cf5 before 0941150100173d4eaf3fe08ff4b16740e7c3026f; affected a6ff8ddcf3f38ec84337e5e7eb3e0e9a73754cf5 before abe7554da62cb489712a54de69ef5665c250e564; affected a6ff8ddcf3f38ec84337e5e7eb3e0e9a73754cf5 before 1a5a3dfd9f172dcb115072f0aea5e27d3083c20e; affected a6ff8ddcf3f38ec84337e5e7eb3e0e9a73754cf5 before 061a6159cea583f1155f67d1915917a6b9282662; affected a6ff8ddcf3f38ec84337e5e7eb3e0e9a73754cf5 before 88c09e4812d72c3153afc8e5a45ecac2d0eae3ff; affected a6ff8ddcf3f38ec84337e5e7eb3e0e9a73754cf5 before 453f0920ffc1a28e28ddb9c3cd5562472b2895b0; affected a6ff8ddcf3f38ec84337e5e7eb3e0e9a73754cf5 before 2def44d3aec59e38d2701c568d65540783f90f2f
Linux / Linuxaffected 4.13; unaffected 0 before 4.13; unaffected 4.14.283 through 4.14.*; unaffected 4.19.247 through 4.19.*; unaffected 5.4.198 through 5.4.*; unaffected 5.10.121 through 5.10.*; unaffected 5.15.46 through 5.15.*; unaffected 5.17.14 through 5.17.*; unaffected 5.18.3 through 5.18.*; unaffected 5.19 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.