CVE-2025-68320lan966x: Fix sleeping in atomic context
- 7.5HighCVSS base score
- 0.41%Exploitation in 30 daysEPSS · top 64% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 104, name: dropbear preempt_count: 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: unwind_backtrace from show_stack+0x10/0x14 show_stack from dump_stack_lvl+0x7c/0xac dump_stack_lvl from __might_resched+0x16c/0x2b0 __might_resched from __mutex_lock+0x64/0xd34 __mutex_lock from mutex_lock_nested+0x1c/0x24 mutex_lock_nested from lan966x_stats_get+0x5c/0x558 lan966x_stats_get from dev_get_stats+0x40/0x43c dev_get_stats from dev_seq_printf_stats+0x3c/0x184 dev_seq_printf_stats from dev_seq_show+0x10/0x30 dev_seq_show from seq_read_iter+0x350/0x4ec seq_read_iter from seq_read+0xfc/0x194 seq_read from proc_reg_read+0xac/0x100 proc_reg_read from vfs_read+0xb0/0x2b0 vfs_read from ksys_read+0x6c/0xec ksys_read from ret_fast_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.
Timeline
ID reserved
By Linux
Published
- 11 months later
· 11 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Deferred | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.41% · top 64% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
- affected 12c2d0a5b8e2a1afc8c7738e19a0d1dd7f3d4007 – < cabb8cbeab49f4b74d78a91a277e00d4f6dd5d7d
- affected 12c2d0a5b8e2a1afc8c7738e19a0d1dd7f3d4007 – < 5a5d2f7727752b64d13263eacd9f8d08a322e662
- affected 12c2d0a5b8e2a1afc8c7738e19a0d1dd7f3d4007 – < c8ab03aa5bd9fd8bfe5d9552d8605826759fdd4d
- affected 12c2d0a5b8e2a1afc8c7738e19a0d1dd7f3d4007 – < 3ac743c60ec502163c435712d527eeced8d83348
- affected 12c2d0a5b8e2a1afc8c7738e19a0d1dd7f3d4007 – < 0216721ce71252f60d89af49c8dff613358058d3
- affected 5.17
- unaffected < 5.17
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.117 – ≤ 6.6.*
- unaffected 6.12.58 – ≤ 6.12.*
- unaffected 6.17.8 – ≤ 6.17.*
- unaffected 6.18 – ≤ *
References
References5
- https://git.kernel.org/stable/c/cabb8cbeab49f4b74d78a91a277e00d4f6dd5d7d (opens in a new tab)
- https://git.kernel.org/stable/c/5a5d2f7727752b64d13263eacd9f8d08a322e662 (opens in a new tab)
- https://git.kernel.org/stable/c/c8ab03aa5bd9fd8bfe5d9552d8605826759fdd4d (opens in a new tab)
- https://git.kernel.org/stable/c/3ac743c60ec502163c435712d527eeced8d83348 (opens in a new tab)
- https://git.kernel.org/stable/c/0216721ce71252f60d89af49c8dff613358058d3 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-203810 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-68320)Record last updated .