cbcvebase.
CVE-2024-36908
published 2024-05-30

CVE-2024-36908: In the Linux kernel, the following vulnerability has been resolved: blk-iocost: do not WARN if iocg was already offlined In iocg_pay_debt(), warn is triggered…

PriorityP418medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.23%
14.3th percentile
In the Linux kernel, the following vulnerability has been resolved: blk-iocost: do not WARN if iocg was already offlined In iocg_pay_debt(), warn is triggered if 'active_list' is empty, which is intended to confirm iocg is active when it has debt. However, warn can be triggered during a blkcg or disk removal, if iocg_waitq_timer_fn() is run at that time: WARNING: CPU: 0 PID: 2344971 at block/blk-iocost.c:1402 iocg_pay_debt+0x14c/0x190 Call trace: iocg_pay_debt+0x14c/0x190 iocg_kick_waitq+0x438/0x4c0 iocg_waitq_timer_fn+0xd8/0x130 __run_hrtimer+0x144/0x45c __hrtimer_run_queues+0x16c/0x244 hrtimer_interrupt+0x2cc/0x7b0 The warn in this situation is meaningless. Since this iocg is being removed, the state of the 'active_list' is irrelevant, and 'waitq_timer' is canceled after removing 'active_list' in ioc_pd_free(), which ensures iocg is freed after iocg_waitq_timer_fn() returns. Therefore, add the check if iocg was already offlined to avoid warn when removing a blkcg or disk.

Affected

21 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.135-1 (bookworm)linux 6.1.135-1 (bookworm)
debianlinux-6.1< linux 6.1.135-1 (bookworm)linux 6.1.135-1 (bookworm)
linuxlinux
linuxlinux>= 7caa47151ab2e644dd221f741ec7578d9532c9a3 < 56a9d07f427378eeb75b917bb49c6fbea820412656a9d07f427378eeb75b917bb49c6fbea8204126
linuxlinux>= 7caa47151ab2e644dd221f741ec7578d9532c9a3 < 7d215e013d097ed6fc4b0ad0272c9514214dc4087d215e013d097ed6fc4b0ad0272c9514214dc408
linuxlinux>= 7caa47151ab2e644dd221f741ec7578d9532c9a3 < aed0aac18f039dd4af13c143063754efca358cb0aed0aac18f039dd4af13c143063754efca358cb0
linuxlinux>= 7caa47151ab2e644dd221f741ec7578d9532c9a3 < 1c172ac7afe4442964f4153b2c78fe4e005d9d671c172ac7afe4442964f4153b2c78fe4e005d9d67
linuxlinux>= 7caa47151ab2e644dd221f741ec7578d9532c9a3 < 14b3275f93d4a0d8ddc02195bc4e9869b7a3700e14b3275f93d4a0d8ddc02195bc4e9869b7a3700e
linuxlinux>= 7caa47151ab2e644dd221f741ec7578d9532c9a3 < 01bc4fda9ea0a6b52f12326486f07a4910666cf601bc4fda9ea0a6b52f12326486f07a4910666cf6
linuxlinux_kernel
linuxlinux_kernel>= 0 < 5.10.237-15.10.237-1
linuxlinux_kernel>= 0 < 6.1.135-16.1.135-1
linuxlinux_kernel>= 0 < 6.8.11-16.8.11-1
linuxlinux_kernel>= 0 < 6.8.11-16.8.11-1
linuxlinux_kernel>= 0 < 5.15.0-144.1575.15.0-144.157
linuxlinux_kernel>= 0 < 6.8.0-40.406.8.0-40.40
linuxlinux_kernel>= 5.11 < 5.15.1815.15.181
linuxlinux_kernel>= 5.16 < 6.1.1356.1.135
linuxlinux_kernel>= 5.4 < 5.10.2375.10.237
linuxlinux_kernel>= 6.2 < 6.6.316.6.31
linuxlinux_kernel>= 6.7 < 6.8.106.8.10

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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