cbcvebase.
CVE-2024-27027
published 2024-05-01

CVE-2024-27027: In the Linux kernel, the following vulnerability has been resolved: dpll: fix dpll_xa_ref_*_del() for multiple registrations Currently, if there are multiple…

PriorityP418medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.26%
18.1th percentile
In the Linux kernel, the following vulnerability has been resolved: dpll: fix dpll_xa_ref_*_del() for multiple registrations Currently, if there are multiple registrations of the same pin on the same dpll device, following warnings are observed: WARNING: CPU: 5 PID: 2212 at drivers/dpll/dpll_core.c:143 dpll_xa_ref_pin_del.isra.0+0x21e/0x230 WARNING: CPU: 5 PID: 2212 at drivers/dpll/dpll_core.c:223 __dpll_pin_unregister+0x2b3/0x2c0 The problem is, that in both dpll_xa_ref_dpll_del() and dpll_xa_ref_pin_del() registration is only removed from list in case the reference count drops to zero. That is wrong, the registration has to be removed always. To fix this, remove the registration from the list and free it unconditionally, instead of doing it only when the ref reference counter reaches zero.

Affected

10 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.7.12-1 (forky)linux 6.7.12-1 (forky)
linuxlinux
linuxlinux>= 9431063ad323ac864750aeba4d304389bc42ca4e < 769324eb35143462542cdb15483cdaf4877bf661769324eb35143462542cdb15483cdaf4877bf661
linuxlinux>= 9431063ad323ac864750aeba4d304389bc42ca4e < b27e32e9367dac024cd6f61f22655714f483fd67b27e32e9367dac024cd6f61f22655714f483fd67
linuxlinux>= 9431063ad323ac864750aeba4d304389bc42ca4e < b446631f355ece73b13c311dd712c47381a23172b446631f355ece73b13c311dd712c47381a23172
linuxlinux_kernel>= 0 < 6.7.12-16.7.12-1
linuxlinux_kernel>= 0 < 6.7.12-16.7.12-1
linuxlinux_kernel>= 0 < 6.8.0-35.356.8.0-35.35
linuxlinux_kernel>= 6.7 < 6.7.116.7.11
linuxlinux_kernel>= 6.8 < 6.8.26.8.2

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_ubuntu6.3MEDIUM
vendor_debian5.5LOW
vendor_redhat5.5MEDIUM
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