CVE-2025-68320
- Source
- https://cve.org/CVERecord?id=CVE-2025-68320
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68320.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-68320
- Downstream
- Related
- Published
- 2025-12-16T15:44:18.217Z
- Modified
- 2026-02-04T03:21:00.219439Z
- Summary
- lan966x: Fix sleeping in atomic context
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
lan966x: Fix sleeping in atomic context
The following warning was seen when we try to connect using ssh to the device.
BUG: sleeping function called from invalid context at kernel/locking/mutex.c:575 inatomic(): 1, irqsdisabled(): 0, nonblock: 0, pid: 104, name: dropbear preemptcount: 1, expected: 0 INFO: lockdep is turned off. CPU: 0 UID: 0 PID: 104 Comm: dropbear Tainted: G W 6.18.0-rc2-00399-g6f1ab1b109b9-dirty #530 NONE Tainted: [W]=WARN Hardware name: Generic DT based system Call trace: unwindbacktrace from showstack+0x10/0x14 showstack from dumpstacklvl+0x7c/0xac dumpstacklvl from _mightresched+0x16c/0x2b0 _mightresched from _mutexlock+0x64/0xd34 _mutexlock from mutexlocknested+0x1c/0x24 mutexlocknested from lan966xstatsget+0x5c/0x558 lan966xstatsget from devgetstats+0x40/0x43c devgetstats from devseqprintfstats+0x3c/0x184 devseqprintfstats from devseqshow+0x10/0x30 devseqshow from seqreaditer+0x350/0x4ec seqreaditer from seqread+0xfc/0x194 seqread from procregread+0xac/0x100 procregread from vfsread+0xb0/0x2b0 vfsread from ksysread+0x6c/0xec ksysread from retfast_syscall+0x0/0x1c Exception stack(0xf0b11fa8 to 0xf0b11ff0) 1fa0: 00000001 00001000 00000008 be9048d8 00001000 00000001 1fc0: 00000001 00001000 00000008 00000003 be905920 0000001e 00000000 00000001 1fe0: 0005404c be9048c0 00018684 b6ec2cd8
It seems that we are using a mutex in a atomic context which is wrong. Change the mutex with a spinlock.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68320.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/0216721ce71252f60d89af49c8dff613358058d3
- https://git.kernel.org/stable/c/3ac743c60ec502163c435712d527eeced8d83348
- https://git.kernel.org/stable/c/5a5d2f7727752b64d13263eacd9f8d08a322e662
- https://git.kernel.org/stable/c/c8ab03aa5bd9fd8bfe5d9552d8605826759fdd4d
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68320.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-68320
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced12c2d0a5b8e2a1afc8c7738e19a0d1dd7f3d4007Fixed5a5d2f7727752b64d13263eacd9f8d08a322e662Fixedc8ab03aa5bd9fd8bfe5d9552d8605826759fdd4dFixed3ac743c60ec502163c435712d527eeced8d83348Fixed0216721ce71252f60d89af49c8dff613358058d3