Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ksmbd: discard write access to the directory open may_open() does not allow a directory to be opened with the write access. However, some writing flags set by client result in adding write access on server, making ksmbd incompatible with FUSE file system. Simply, let's discard the write access when opening a directory. list_add corruption. next is NULL. ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:26! pc : __list_add_valid+0x88/0xbc lr : __list_add_valid+0x88/0xbc Call trace: __list_add_valid+0x88/0xbc fuse_finish_open+0x11c/0x170 fuse_open_common+0x284/0x5e8 fuse_dir_open+0x14/0x24 do_dentry_open+0x2a4/0x4e0 dentry_open+0x50/0x80 smb2_open+0xbe4/0x15a4 handle_ksmbd_work+0x478/0x5ec process_one_work+0x1b4/0x448 worker_thread+0x25c/0x430 kthread+0x104/0x1d4 ret_from_fork+0x10/0x20
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 0626e6641f6b467447c81dd7678a69c66f7746cf before 66cf853e1c7a2407f15d9f7aaa3e47d61745e361; affected 0626e6641f6b467447c81dd7678a69c66f7746cf before 9e84b1ba5c98fb5c9f869c85db1d870354613baa; affected 0626e6641f6b467447c81dd7678a69c66f7746cf before 198498b2049c0f11f7670be6974570e02b0cc035; affected 0626e6641f6b467447c81dd7678a69c66f7746cf before e2e33caa5dc2eae7bddf88b22ce11ec3d760e5cd |
| Linux / Linux | affected 5.15; unaffected 0 before 5.15; unaffected 6.1.100 through 6.1.*; unaffected 6.6.41 through 6.6.*; unaffected 6.9.10 through 6.9.*; unaffected 6.10 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/66cf853e1c7a2407f15d9f7aaa3e47d61745e361
- https://git.kernel.org/stable/c/9e84b1ba5c98fb5c9f869c85db1d870354613baa
- https://git.kernel.org/stable/c/198498b2049c0f11f7670be6974570e02b0cc035
- https://git.kernel.org/stable/c/e2e33caa5dc2eae7bddf88b22ce11ec3d760e5cd
ADP enrichment
No English description supplied.
- https://git.kernel.org/stable/c/66cf853e1c7a2407f15d9f7aaa3e47d61745e361
- https://git.kernel.org/stable/c/9e84b1ba5c98fb5c9f869c85db1d870354613baa
- https://git.kernel.org/stable/c/198498b2049c0f11f7670be6974570e02b0cc035
- https://git.kernel.org/stable/c/e2e33caa5dc2eae7bddf88b22ce11ec3d760e5cd
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
No English description supplied.
No references supplied.