cbcvebase.
CVE-2023-54324
published 2025-12-30

CVE-2023-54324: In the Linux kernel, the following vulnerability has been resolved: dm: fix a race condition in retrieve_deps There's a race condition in the multipath target…

PriorityP424low5.5
EPSS
0.16%
5.8th percentile
In the Linux kernel, the following vulnerability has been resolved: dm: fix a race condition in retrieve_deps There's a race condition in the multipath target when retrieve_deps races with multipath_message calling dm_get_device and dm_put_device. retrieve_deps walks the list of open devices without holding any lock but multipath may add or remove devices to the list while it is running. The end result may be memory corruption or use-after-free memory access. See this description of a UAF with multipath_message(): https://listman.redhat.com/archives/dm-devel/2022-October/052373.html Fix this bug by introducing a new rw semaphore "devices_lock". We grab devices_lock for read in retrieve_deps and we grab it for write in dm_get_device and dm_put_device.

Affected

10 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.64-1 (bookworm)linux 6.1.64-1 (bookworm)
linuxlinux
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < dbf1a719850577bb51fc7512a3972994b797a17bdbf1a719850577bb51fc7512a3972994b797a17b
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 38f6e5ae5d9ff4a4050ea6f7b543d5d5a4e087cf38f6e5ae5d9ff4a4050ea6f7b543d5d5a4e087cf
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < f6007dce0cd35d634d9be91ef3515a6385dcee16f6007dce0cd35d634d9be91ef3515a6385dcee16
linuxlinux_kernel>= 0 < 6.1.64-16.1.64-1
linuxlinux_kernel>= 0 < 6.5.6-16.5.6-1
linuxlinux_kernel>= 0 < 6.5.6-16.5.6-1
linuxlinux_kernel>= 2.6.12 < 6.1.566.1.56
linuxlinux_kernel>= 6.2.0 < 6.5.56.5.5
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