CVE-2025-68368 — NULL Pointer Dereference in Linux
Severity
6.4MEDIUM
No vectorEPSS
0.0%
top 92.35%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedDec 24
Latest updateApr 17
Description
In the Linux kernel, the following vulnerability has been resolved:
md: init bioset in mddev_init
IO operations may be needed before md_run(), such as updating metadata
after writing sysfs. Without bioset, this triggers a NULL pointer
dereference as below:
BUG: kernel NULL pointer dereference, address: 0000000000000020
Call Trace:
md_update_sb+0x658/0xe00
new_level_store+0xc5/0x120
md_attr_store+0xc9/0x1e0
sysfs_kf_write+0x6f/0xa0
kernfs_fop_write_iter+0x141/0x2a0
vfs_write+0x1fc/0x5a0
ksys_w…
Affected Packages7 packages
▶CVEListV5linux/linuxd981ed8419303ed12351eea8541ad6cb76455fe3 — 9d37fe37dfa0833a8768740f0575e0ffd793cb4a+2
🔴Vulnerability Details
3OSV▶
CVE-2025-68368: In the Linux kernel, the following vulnerability has been resolved: md: init bioset in mddev_init IO operations may be needed before md_run(), such as↗2025-12-24
GHSA▶
GHSA-8jvw-6j3w-p767: In the Linux kernel, the following vulnerability has been resolved:
md: init bioset in mddev_init
IO operations may be needed before md_run(), such↗2025-12-24
📋Vendor Advisories
5Debian▶
CVE-2025-68368: linux - In the Linux kernel, the following vulnerability has been resolved: md: init bi...↗2025