Description
In the Linux kernel, the following vulnerability has been resolved: scsi: qedi: Fix use after free bug in qedi_remove() In qedi_probe() we call __qedi_probe() which initializes &qedi->recovery_work with qedi_recovery_handler() and &qedi->board_disable_work with qedi_board_disable_work(). When qedi_schedule_recovery_handler() is called, schedule_delayed_work() will finally start the work. In qedi_remove(), which is called to remove the driver, the following sequence may be observed: Fix this by finishing the work before cleanup in qedi_remove(). CPU0 CPU1 |qedi_recovery_handler qedi_remove | __qedi_remove | iscsi_host_free | scsi_host_put | //free shost | |iscsi_host_for_each_session |//use qedi->shost Cancel recovery_work and board_disable_work in __qedi_remove().
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
4b1068f5d74b6cc92319bd7eba40809b1222e73f to < fa19c533ab19161298f0780bcc6523af88f6fd20affected4b1068f5d74b6cc92319bd7eba40809b1222e73f to < 5e756a59cee6a8a79b9059c5bdf0ecbf5bb8d151affected4b1068f5d74b6cc92319bd7eba40809b1222e73f to < 3738a230831e861503119ee2691c4a7dc56ed60aaffected4b1068f5d74b6cc92319bd7eba40809b1222e73f to < 89f6023fc321c958a0fb11f143a6eb4544ae3940affected4b1068f5d74b6cc92319bd7eba40809b1222e73f to < 124027cd1a624ce0347adcd59241a9966a726b22affected4b1068f5d74b6cc92319bd7eba40809b1222e73f to < c5749639f2d0a1f6cbe187d05f70c2e7c544d748affected
Linux Linux
Default version status: affected
5.7affected0 to < 5.7unaffected5.10.180 to ≤ 5.10.*unaffected5.15.112 to ≤ 5.15.*unaffected6.1.29 to ≤ 6.1.*unaffected6.2.16 to ≤ 6.2.*unaffected6.3.3 to ≤ 6.3.*unaffected6.4 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/fa19c533ab19161298f0780bcc6523af88f6fd20 ↗
- https://git.kernel.org/stable/c/5e756a59cee6a8a79b9059c5bdf0ecbf5bb8d151 ↗
- https://git.kernel.org/stable/c/3738a230831e861503119ee2691c4a7dc56ed60a ↗
- https://git.kernel.org/stable/c/89f6023fc321c958a0fb11f143a6eb4544ae3940 ↗
- https://git.kernel.org/stable/c/124027cd1a624ce0347adcd59241a9966a726b22 ↗
- https://git.kernel.org/stable/c/c5749639f2d0a1f6cbe187d05f70c2e7c544d748 ↗