CVE-2025-38496 — Use of a Non-reentrant Function in a Concurrent Context in Linux
Severity
5.5MEDIUMNVD
OSV3.2
EPSS
0.0%
top 93.33%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJul 28
Latest updateMar 25
Description
In the Linux kernel, the following vulnerability has been resolved:
dm-bufio: fix sched in atomic context
If "try_verify_in_tasklet" is set for dm-verity, DM_BUFIO_CLIENT_NO_SLEEP
is enabled for dm-bufio. However, when bufio tries to evict buffers, there
is a chance to trigger scheduling in spin_lock_bh, the following warning
is hit:
BUG: sleeping function called from invalid context at drivers/md/dm-bufio.c:2745
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 123, name: kworker/2:2
pr…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6