CVE-2024-41030

ksmbd: discard write access to the directory open

State: Published
Severity: Not scored
Published: Jul 29, 2024
Updated: May 11, 2026
Reserved: Jul 12, 2024

Description

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

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	0626e6641f6b467447c81dd7678a69c66f7746cf to before 66cf853e1c7a2407f15d9f7aaa3e47d61745e361Affected 0626e6641f6b467447c81dd7678a69c66f7746cf to before 9e84b1ba5c98fb5c9f869c85db1d870354613baaAffected 0626e6641f6b467447c81dd7678a69c66f7746cf to before 198498b2049c0f11f7670be6974570e02b0cc035Affected 0626e6641f6b467447c81dd7678a69c66f7746cf to before e2e33caa5dc2eae7bddf88b22ce11ec3d760e5cdAffected
LinuxLinux	5.15Affected before 5.15Not affected 6.1.100 through 6.1.Not affected 6.6.41 through 6.6.Not affected 6.9.10 through 6.9.*Not affected 6.10 and laterNot affected

References

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