cbcvebase.
CVE-2024-56764
published 2025-01-06

CVE-2024-56764: In the Linux kernel, the following vulnerability has been resolved: ublk: detach gendisk from ublk device if add_disk() fails Inside ublk_abort_requests()…

PriorityP337high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.20%
10.1th percentile
In the Linux kernel, the following vulnerability has been resolved: ublk: detach gendisk from ublk device if add_disk() fails Inside ublk_abort_requests(), gendisk is grabbed for aborting all inflight requests. And ublk_abort_requests() is called when exiting the uring context or handling timeout. If add_disk() fails, the gendisk may have been freed when calling ublk_abort_requests(), so use-after-free can be caused when getting disk's reference in ublk_abort_requests(). Fixes the bug by detaching gendisk from ublk device if add_disk() fails.

Affected

9 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.12.8-1 (forky)linux 6.12.8-1 (forky)
linuxlinux
linuxlinux>= bd23f6c2c2d00518e2f27f2d25cef795de9bee56 < 7d680f2f76a3417fdfc3946da7471e81464f7b417d680f2f76a3417fdfc3946da7471e81464f7b41
linuxlinux>= bd23f6c2c2d00518e2f27f2d25cef795de9bee56 < 75cd4005da5492129917a4a4ee45e8166055610475cd4005da5492129917a4a4ee45e81660556104
linuxlinux_kernel
linuxlinux_kernel>= 0 < 6.12.8-16.12.8-1
linuxlinux_kernel>= 0 < 6.12.8-16.12.8-1
linuxlinux_kernel>= 0 < 6.8.0-60.636.8.0-60.63
linuxlinux_kernel>= 6.7 < 6.12.86.12.8

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8LOW
vendor_redhat7.8HIGH
vendor_ubuntu7.8HIGH
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