SB20241230157 - NULL pointer dereference in Linux kernel fuse

Description

This security bulletin contains information about 1 vulnerability.

1) NULL pointer dereference (CVE-ID: CVE-2024-53219)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the virtio_fs_get_tree() function in fs/fuse/virtio_fs.c, within the fuse_read_args_fill(), fuse_release_user_pages(), fuse_aio_complete_req(), fuse_get_frag_size(), fuse_get_user_pages() and fuse_direct_io() functions in fs/fuse/file.c. A local user can perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/2bc07714dc955a91d2923a440ea02c3cb3376b10
• https://git.kernel.org/stable/c/41748675c0bf252b3c5f600a95830f0936d366c1
• https://git.kernel.org/stable/c/9a8fde56d4b6d51930936ed50f6370a9097328d1
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.11