CVE-2026-45924
published 2026-05-27CVE-2026-45924: 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…
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:
dump_stack_lvl+0x44/0x5b
process_one_work.cold+0x57/0x5c
worker_thread+0x82/0x600
kthread+0x153/0x190
ret_from_fork+0x22/0x30
Found by Linux Verification Center (linuxtesting.org).
Affected
17 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | >= 1e858a7a51c7b8b009d8f246de7ceb7743b44a71 < cf29329a13df79c198b45dfc92577638d30b56fa | cf29329a13df79c198b45dfc92577638d30b56fa |
| linux | linux | >= 5.15.190 < 5.15.203 | 5.15.203 |
| linux | linux | >= 6.1.149 < 6.1.167 | 6.1.167 |
| linux | linux | >= 6.12.43 < 6.12.78 | 6.12.78 |
| linux | linux | >= 6.15.11 < 6.16 | 6.16 |
| linux | linux | >= 6.16.2 < 6.17 | 6.17 |
| linux | linux | >= 6.6.103 < 6.6.130 | 6.6.130 |
| linux | linux | >= 814cfdb6358d9b84fcbec9918c8f938cc096a43a < 34d6691933682f0516259a31b39d2cebcedec0a5 | 34d6691933682f0516259a31b39d2cebcedec0a5 |
| linux | linux | >= 9d5012ffe14120f978ee34aef4df3d6cb026b7c4 < 8e3a3192ef78d8302916408d62813b1fddfc8972 | 8e3a3192ef78d8302916408d62813b1fddfc8972 |
| linux | linux | >= ac98d54630d5b52e3f684d872f0d82c06c418ea9 < f221baa80e5959a0c08a7e34abbf2a4d3cf0e1c2 | f221baa80e5959a0c08a7e34abbf2a4d3cf0e1c2 |
| linux | linux | >= d5fc1400a34b4ea5e8f2ce296ea12bf8c8421694 < 0c578e8065c4b08d5635a4cbc0f6321df9d20f79 | 0c578e8065c4b08d5635a4cbc0f6321df9d20f79 |
| linux | linux | >= d5fc1400a34b4ea5e8f2ce296ea12bf8c8421694 < 4c38600feb81c670edb82e49d201d3d2d00cd4c3 | 4c38600feb81c670edb82e49d201d3d2d00cd4c3 |
| linux | linux | >= d5fc1400a34b4ea5e8f2ce296ea12bf8c8421694 < a09dc10d1353f0e92c21eae2a79af1c2b1ddcde8 | a09dc10d1353f0e92c21eae2a79af1c2b1ddcde8 |
| linux | linux_kernel | — | — |