CVE-2025-21869 — Out-of-bounds Write in Linux
Severity
7.8HIGHNVD
OSV5.5
EPSS
0.1%
top 84.03%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMar 27
Latest updateSep 3
Description
In the Linux kernel, the following vulnerability has been resolved:
powerpc/code-patching: Disable KASAN report during patching via temporary mm
Erhard reports the following KASAN hit on Talos II (power9) with kernel 6.13:
[ 12.028126] ==================================================================
[ 12.028198] BUG: KASAN: user-memory-access in copy_to_kernel_nofault+0x8c/0x1a0
[ 12.028260] Write of size 8 at addr 0000187e458f2000 by task systemd/1
[ 12.028346] CPU: 87 UID: 0 PID: 1 Comm:…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9
Affected Packages5 packages
▶CVEListV5linux/linux465cabc97b42405eb89380ea6ba8d8b03e4ae1a2 — 5980d4456dd66d1b6505d5ec15048bd87e8775e0+3