cbcvebase.
CVE-2024-57892
published 2025-01-15

CVE-2024-57892: In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix slab-use-after-free due to dangling pointer dqi_priv When mounting ocfs2 and…

PriorityP339high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.22%
12.1th percentile
In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix slab-use-after-free due to dangling pointer dqi_priv When mounting ocfs2 and then remounting it as read-only, a slab-use-after-free occurs after the user uses a syscall to quota_getnextquota. Specifically, sb_dqinfo(sb, type)->dqi_priv is the dangling pointer. During the remounting process, the pointer dqi_priv is freed but is never set as null leaving it to be accessed. Additionally, the read-only option for remounting sets the DQUOT_SUSPENDED flag instead of setting the DQUOT_USAGE_ENABLED flags. Moreover, later in the process of getting the next quota, the function ocfs2_get_next_id is called and only checks the quota usage flags and not the quota suspended flags. To fix this, I set dqi_priv to null when it is freed after remounting with read-only and put a check for DQUOT_SUSPENDED in ocfs2_get_next_id. [[email protected]: coding-style cleanups]

Affected

21 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.128-1 (bookworm)linux 6.1.128-1 (bookworm)
debianlinux-6.1< linux 6.1.128-1 (bookworm)linux 6.1.128-1 (bookworm)
linuxlinux
linuxlinux>= 8f9e8f5fcc059a3cba87ce837c88316797ef3645 < 58f9e20e2a7602e1dd649a1ec4790077c251cb6c58f9e20e2a7602e1dd649a1ec4790077c251cb6c
linuxlinux>= 8f9e8f5fcc059a3cba87ce837c88316797ef3645 < 8ff6f635a08c30559ded0c110c7ce03ba7747d118ff6f635a08c30559ded0c110c7ce03ba7747d11
linuxlinux>= 8f9e8f5fcc059a3cba87ce837c88316797ef3645 < f44e6d70c100614c211703f065cad448050e4a0ef44e6d70c100614c211703f065cad448050e4a0e
linuxlinux>= 8f9e8f5fcc059a3cba87ce837c88316797ef3645 < 2d431192486367eee03cc28d0b53b97dafcb8e632d431192486367eee03cc28d0b53b97dafcb8e63
linuxlinux>= 8f9e8f5fcc059a3cba87ce837c88316797ef3645 < 2e3d203b1adede46bbba049e497765d67865be182e3d203b1adede46bbba049e497765d67865be18
linuxlinux>= 8f9e8f5fcc059a3cba87ce837c88316797ef3645 < ba950a02d8d23811aa1120affd3adedcfac6153dba950a02d8d23811aa1120affd3adedcfac6153d
linuxlinux>= 8f9e8f5fcc059a3cba87ce837c88316797ef3645 < 5f3fd772d152229d94602bca243fbb658068a5975f3fd772d152229d94602bca243fbb658068a597
linuxlinux_kernel
linuxlinux_kernel>= 0 < 5.10.234-15.10.234-1
linuxlinux_kernel>= 0 < 6.1.128-16.1.128-1
linuxlinux_kernel>= 0 < 6.12.9-16.12.9-1
linuxlinux_kernel>= 0 < 6.12.9-16.12.9-1
linuxlinux_kernel>= 0 < 5.4.0-211.2315.4.0-211.231
linuxlinux_kernel>= 0 < 5.15.0-135.1465.15.0-135.146
linuxlinux_kernel>= 0 < 6.8.0-60.636.8.0-60.63
linuxlinux_kernel>= 4.6 < 6.1.1256.1.125
linuxlinux_kernel>= 6.2 < 6.6.706.6.70
linuxlinux_kernel>= 6.7 < 6.12.96.12.9

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
vendor_ubuntu7.8HIGH
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