CVE-2024-58095 jfs: add check read-only before txBeginAnon() call
A missing read-only check in the Linux kernel JFS filesystem allows attackers to cause a crash or system instability by attempting write operations on a read-only mounted volume.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-58095?
CVE-2024-58095 is a medium-severity denial of service vulnerability in Linux kernel, published on 16 Apr 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
jfs: add check read-only before txBeginAnon() call
Added a read-only check before calling `txBeginAnon` in `extAlloc` and `extRecord`. This prevents modification attempts on a read-only mounted filesystem, avoiding potential errors or crashes.
Call trace: txBeginAnon+0xac/0x154 extAlloc+0xe8/0xdec fs/jfs/jfs_extent.c:78 jfs_get_block+0x340/0xb98 fs/jfs/inode.c:248 __block_write_begin_int+0x580/0x166c fs/buffer.c:2128 __block_write_begin fs/buffer.c:2177 [inline] block_write_begin+0x98/0x11c fs/buffer.c:2236 jfs_write_begin+0x44/0x88 fs/jfs/inode.c:299
Which versions are affected by CVE-2024-58095?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-58095?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2024-58095 being exploited?
There is no known exploitation of CVE-2024-58095 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-58095, DEBIAN-CVE-2024-58095, GHSA-cxcw-75qj-r943, ROOT-OS-DEBIAN-11-CVE-2024-58095, ROOT-OS-DEBIAN-12-CVE-2024-58095, ROOT-OS-DEBIAN-13-CVE-2024-58095 and 3 more.