cbcvebase.
CVE-2024-39461
published 2024-06-25

CVE-2024-39461: In the Linux kernel, the following vulnerability has been resolved: clk: bcm: rpi: Assign ->num before accessing ->hws Commit f316cdff8d67 ("clk: Annotate…

PriorityP418medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.21%
11.5th percentile
In the Linux kernel, the following vulnerability has been resolved: clk: bcm: rpi: Assign ->num before accessing ->hws Commit f316cdff8d67 ("clk: Annotate struct clk_hw_onecell_data with __counted_by") annotated the hws member of 'struct clk_hw_onecell_data' with __counted_by, which informs the bounds sanitizer about the number of elements in hws, so that it can warn when hws is accessed out of bounds. As noted in that change, the __counted_by member must be initialized with the number of elements before the first array access happens, otherwise there will be a warning from each access prior to the initialization because the number of elements is zero. This occurs in raspberrypi_discover_clocks() due to ->num being assigned after ->hws has been accessed: UBSAN: array-index-out-of-bounds in drivers/clk/bcm/clk-raspberrypi.c:374:4 index 3 is out of range for type 'struct clk_hw *[] __counted_by(num)' (aka 'struct clk_hw *[]') Move the ->num initialization to before the first access of ->hws, which clears up the warning.

Affected

10 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.9.7-1 (forky)linux 6.9.7-1 (forky)
linuxlinux
linuxlinux>= f316cdff8d677db9ad9c90acb44c4cd535b0ee27 < 9562dbe5cdbb16ac887d27ef6f179980bb99193c9562dbe5cdbb16ac887d27ef6f179980bb99193c
linuxlinux>= f316cdff8d677db9ad9c90acb44c4cd535b0ee27 < cdf9c7871d58d3df59d2775982e3533adb8ec920cdf9c7871d58d3df59d2775982e3533adb8ec920
linuxlinux>= f316cdff8d677db9ad9c90acb44c4cd535b0ee27 < 6dc445c1905096b2ed4db1a84570375b4e00cc0f6dc445c1905096b2ed4db1a84570375b4e00cc0f
linuxlinux_kernel>= 0 < 6.9.7-16.9.7-1
linuxlinux_kernel>= 0 < 6.9.7-16.9.7-1
linuxlinux_kernel>= 0 < 6.8.0-44.446.8.0-44.44
linuxlinux_kernel>= 6.6 < 6.6.346.6.34
linuxlinux_kernel>= 6.7 < 6.9.56.9.5

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_debian5.5LOW
vendor_redhat5.5MEDIUM
vendor_ubuntu5.5MEDIUM
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.