Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: smb/client: fix memory leak in smb2_open_file() Reproducer: 1. server: directories are exported read-only 2. client: mount -t cifs //${server_ip}/export /mnt 3. client: dd if=/dev/zero of=/mnt/file bs=512 count=1000 oflag=direct 4. client: umount /mnt 5. client: sleep 1 6. client: modprobe -r cifs The error message is as follows: ============================================================================= BUG cifs_small_rq (Not tainted): Objects remaining on __kmem_cache_shutdown() ----------------------------------------------------------------------------- Object 0x00000000d47521be @offset=14336 ... WARNING: mm/slub.c:1251 at __kmem_cache_shutdown+0x34e/0x440, CPU#0: modprobe/1577 ... Call Trace: <TASK> kmem_cache_destroy+0x94/0x190 cifs_destroy_request_bufs+0x3e/0x50 [cifs] cleanup_module+0x4e/0x540 [cifs] __se_sys_delete_module+0x278/0x400 __x64_sys_delete_module+0x5f/0x70 x64_sys_call+0x2299/0x2ff0 do_syscall_64+0x89/0x350 entry_SYSCALL_64_after_hwframe+0x76/0x7e ... kmem_cache_destroy cifs_small_rq: Slab cache still has objects when called from cifs_destroy_request_bufs+0x3e/0x50 [cifs] WARNING: mm/slab_common.c:532 at kmem_cache_destroy+0x16b/0x190, CPU#0: modprobe/1577
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 17e53a15e64b65623b8f2b1185d27d7b1cbf69ab before 743f70406264348c0830f38409eb6c40a42fb2db; affected 18066188eb90cc0c798f3370a8078a79ddb73f70 before 3a6d6b332f92990958602c1e35ce0173e2dd62e9; affected 6ebb9d54eccc8026b386e76eff69364d33373da5 before b64e3b5d8d759dd4333992e4ba4dadf9359952c8; affected e255612b5ed9f179abe8196df7c2ba09dd227900 before 9ee608a64e37cea5b4b13e436c559dd0fb2ad1b5; affected e255612b5ed9f179abe8196df7c2ba09dd227900 before e3a43633023e3cacaca60d4b8972d084a2b06236; affected bcd15f06c7e8904116cfb06526bcc189b86aff85; affected 6.1.141 before 6.1.163; affected 6.6.93 before 6.6.124; affected 6.12.31 before 6.12.70; affected 6.14.9 before 6.15 |
| Linux / Linux | affected 6.15; unaffected 0 before 6.15; unaffected 6.1.163 through 6.1.*; unaffected 6.6.124 through 6.6.*; unaffected 6.12.70 through 6.12.*; unaffected 6.18.10 through 6.18.*; unaffected 6.19 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/743f70406264348c0830f38409eb6c40a42fb2db
- https://git.kernel.org/stable/c/3a6d6b332f92990958602c1e35ce0173e2dd62e9
- https://git.kernel.org/stable/c/b64e3b5d8d759dd4333992e4ba4dadf9359952c8
- https://git.kernel.org/stable/c/9ee608a64e37cea5b4b13e436c559dd0fb2ad1b5
- https://git.kernel.org/stable/c/e3a43633023e3cacaca60d4b8972d084a2b06236