Medium 5.5Published May 27, 2026

CVE-2026-45924ksmbd: call ksmbd_vfs_kern_path_end_removing() on some error paths

Updated under an hour ago (Oct 27, 2026, 5:00 AM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: ksmbd: call ksmbd_vfs_kern_path_end_removing() on some error paths There are two places where ksmbd_vfs_kern_path_end_removing() needs to be called in order to balance what the corresponding successful call to ksmbd_vfs_kern_path_start_removing() has done, i.e. drop inode locks and put the taken references. Otherwise there might be potential deadlocks and unbalanced locks which are caught like: BUG: workqueue leaked lock or atomic: kworker/5:21/0x00000000/7596 last function: handle_ksmbd_work 2 locks held by kworker/5:21/7596: #0: ffff8881051ae448 (sb_writers#3){.+.+}-{0:0}, at: ksmbd_vfs_kern_path_locked+0x142/0x660 #1: ffff888130e966c0 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: ksmbd_vfs_kern_path_locked+0x17d/0x660 CPU: 5 PID: 7596 Comm: kworker/5:21 Not tainted 6.1.162-00456-gc29b353f383b #138 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.17.0-debian-1.17.0-1 04/01/2014 Workqueue: ksmbd-io handle_ksmbd_work Call Trace: <TASK> dump_stack_lvl+0x44/0x5b process_one_work.cold+0x57/0x5c worker_thread+0x82/0x600 kthread+0x153/0x190 ret_from_fork+0x22/0x30 </TASK> Found by Linux Verification Center (linuxtesting.org).

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Undergoing Analysis
Record last updated: May 27, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	9d5012ffe14120f978ee34aef4df3d6cb026b7c4 builds before 8e3a3192ef78d8302916408d62813b1fddfc8972; from ac98d54630d5b52e3f684d872f0d82c06c418ea9 before f221baa80e5959a0c08a7e34abbf2a4d3cf0e1c2; from 1e858a7a51c7b8b009d8f246de7ceb7743b44a71 before cf29329a13df79c198b45dfc92577638d30b56fa; 814cfdb6358d9b84fcbec9918c8f938cc096a43a builds before 34d6691933682f0516259a31b39d2cebcedec0a5; from d5fc1400a34b4ea5e8f2ce296ea12bf8c8421694 before 0c578e8065c4b08d5635a4cbc0f6321df9d20f79; from d5fc1400a34b4ea5e8f2ce296ea12bf8c8421694 before 4c38600feb81c670edb82e49d201d3d2d00cd4c3; from d5fc1400a34b4ea5e8f2ce296ea12bf8c8421694 before a09dc10d1353f0e92c21eae2a79af1c2b1ddcde8; a7dddd62578c2eb6cb28b8835556a121b5157323; and 7 more ranges	CNA record
linux linux_kernel linux:linux_kernel	from 5.15.190 before 5.15.203; from 6.1.149 before 6.1.167; from 6.6.103 before 6.6.130; from 6.12.43 before 6.12.78; from 6.15.11 before 6.16; from 6.16.2 before 6.18.17; from 6.19 before 6.19.4	NVD

References

References

https://git.kernel.org/stable/c/8e3a3192ef78d8302916408d62813b1fddfc8972	patch
https://git.kernel.org/stable/c/f221baa80e5959a0c08a7e34abbf2a4d3cf0e1c2	patch
https://git.kernel.org/stable/c/cf29329a13df79c198b45dfc92577638d30b56fa	patch
https://git.kernel.org/stable/c/34d6691933682f0516259a31b39d2cebcedec0a5	patch
https://git.kernel.org/stable/c/0c578e8065c4b08d5635a4cbc0f6321df9d20f79	patch
https://git.kernel.org/stable/c/4c38600feb81c670edb82e49d201d3d2d00cd4c3	patch
https://git.kernel.org/stable/c/a09dc10d1353f0e92c21eae2a79af1c2b1ddcde8	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.