linux: In the Linux kernel, the following vulnerability has been resolved: md: init bioset in mddev_init IO operations may...
CVE-2025-68368 is fixed in 14 products on 1 platform, first by DEBIAN-CVE-2025-68368, released December 24, 2025. It is not reported as exploited. Patch Radar priority: Routine.
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_write+0x79/0x180 __x64_sys_write+0x1d/0x30 x64_sys_call+0x2818/0x2880 do_syscall_64+0xa9/0x580 entry_SYSCALL_64_after_hwframe+0x4b/0x53 Reproducer ``` mdadm -CR /dev/md0 -l1 -n2 /dev/sd[cd] echo inactive > /sys/block/md0/md/array_state echo 10 > /sys/block/md0/md/new_level ``` mddev_init() can only be called once per mddev, no need to test if bioset has been initialized anymore.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| dtb-aarch64 · opensuse-leap 16.0 | 6.12.0-160000.26.1 | OPENSUSE-SU-2026:20287-1 | Feb 27, 2026 |
| kernel-64kb · opensuse-leap 16.0 | 6.12.0-160000.26.1 | OPENSUSE-SU-2026:20287-1 | Feb 27, 2026 |
| kernel-64kb · sles 16.0 | 6.12.0-160000.26.1 | SUSE-SU-2026:20599-1 | Feb 27, 2026 |
| kernel-azure · opensuse-leap 16.0 | 6.12.0-160000.26.1 | OPENSUSE-SU-2026:20287-1 | Feb 27, 2026 |
| kernel-azure · sles 16.0 | 6.12.0-160000.26.1 | SUSE-SU-2026:20599-1 | Feb 27, 2026 |
| kernel-default · opensuse-leap 16.0 | 6.12.0-160000.26.1 | OPENSUSE-SU-2026:20287-1 | Feb 27, 2026 |
| kernel-default · sles 16.0 | 6.12.0-160000.26.1 | SUSE-SU-2026:20599-1 | Feb 27, 2026 |
| kernel-default-base · opensuse-leap 16.0 | 6.12.0-160000.26.1.160000.2.7 | OPENSUSE-SU-2026:20287-1 | Feb 27, 2026 |
| kernel-default-base · sles 16.0 | 6.12.0-160000.26.1.160000.2.7 | SUSE-SU-2026:20599-1 | Feb 27, 2026 |
| kernel-docs · opensuse-leap 16.0 | 6.12.0-160000.26.1 | OPENSUSE-SU-2026:20287-1 | Feb 27, 2026 |
| kernel-docs · sles 16.0 | 6.12.0-160000.26.1 | SUSE-SU-2026:20599-1 | Feb 27, 2026 |
| kernel-kvmsmall · opensuse-leap 16.0 | 6.12.0-160000.26.1 | OPENSUSE-SU-2026:20287-1 | Feb 27, 2026 |
| kernel-kvmsmall · sles 16.0 | 6.12.0-160000.26.1 | SUSE-SU-2026:20599-1 | Feb 27, 2026 |
| kernel-obs-build · opensuse-leap 16.0 | 6.12.0-160000.26.1 | OPENSUSE-SU-2026:20287-1 | Feb 27, 2026 |
| kernel-obs-qa · opensuse-leap 16.0 | 6.12.0-160000.26.1 | OPENSUSE-SU-2026:20287-1 | Feb 27, 2026 |
| kernel-obs-qa · sles 16.0 | 6.12.0-160000.26.1 | SUSE-SU-2026:20599-1 | Feb 27, 2026 |
| kernel-rt · opensuse-leap 16.0 | 6.12.0-160000.26.1 | OPENSUSE-SU-2026:20287-1 | Feb 27, 2026 |
| kernel-source · opensuse-leap 16.0 | 6.12.0-160000.26.1 | OPENSUSE-SU-2026:20287-1 | Feb 27, 2026 |
| kernel-source · sles 16.0 | 6.12.0-160000.26.1 | SUSE-SU-2026:20599-1 | Feb 27, 2026 |
| kernel-syms · opensuse-leap 16.0 | 6.12.0-160000.26.1 | OPENSUSE-SU-2026:20287-1 | Feb 27, 2026 |
| kernel-syms · sles 16.0 | 6.12.0-160000.26.1 | SUSE-SU-2026:20599-1 | Feb 27, 2026 |
| kernel-zfcpdump · opensuse-leap 16.0 | 6.12.0-160000.26.1 | OPENSUSE-SU-2026:20287-1 | Feb 27, 2026 |
| kernel-zfcpdump · sles 16.0 | 6.12.0-160000.26.1 | SUSE-SU-2026:20599-1 | Feb 27, 2026 |
| linux · Debian 13.5 (trixie) | 6.12.115-2 | DEBIAN-CVE-2025-68368 | Dec 24, 2025 |
| linux · Debian 14 | 6.18.3-1 | DEBIAN-CVE-2025-68368 | Dec 24, 2025 |
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