Description
In the Linux kernel, the following vulnerability has been resolved:
ntfs3: init run lock for extend inode
After setting the inode mode of $Extend to a regular file, executing the
truncate system call will enter the do_truncate() routine, causing the
run_lock uninitialized error reported by syzbot.
Prior to patch 4e8011ffec79, if the inode mode of $Extend was not set to
a regular file, the do_truncate() routine would not be entered.
Add the run_lock initialization when loading $Extend.
syzbot reported:
INFO: trying to register non-static key.
Call Trace:
dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
assign_lock_key+0x133/0x150 kernel/locking/lockdep.c:984
register_lock_class+0x105/0x320 kernel/locking/lockdep.c:1299
__lock_acquire+0x99/0xd20 kernel/locking/lockdep.c:5112
lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5868
down_write+0x96/0x1f0 kernel/locking/rwsem.c:1590
ntfs_set_size+0x140/0x200 fs/ntfs3/inode.c:860
ntfs_extend+0x1d9/0x970 fs/ntfs3/file.c:387
ntfs_setattr+0x2e8/0xbe0 fs/ntfs3/file.c:808
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 5.15.197 – < 5.15.198, 6.1.159 – < 6.1.160, 6.6.117 – < 6.6.120, 6.12.58 – < 6.12.63, 6.17.8 – < 6.17.13, 6.18 | 5.15.198 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 6.17.13-1 | — |
| Debian 12 | linux | 6.1.162-1 | DSA-6127-1 |
| Debian 11 | linux-6.1 | 6.1.162-1~deb11u1 | DLA-4476-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | linux | 6.17.0-19.19 | USN-8094-1 |
| Ubuntu 25.10 | linux-aws +2 | 6.17.0-1009.9 | USN-8094-1 |
| Ubuntu 25.10 | linux-azure +1 | 6.17.0-1010.10 | USN-8094-5, USN-8094-4 |
| Ubuntu 25.10 | linux-realtime | 6.17.0-1008.9 | USN-8094-2 |
| Ubuntu 25.10 | linux-riscv | 6.17.0-19.19.1 | — |
| Ubuntu 24.04 LTS | linux | 6.8.0-110.110 | USN-8179-1 |
| Ubuntu 24.04 LTS | linux-aws | 6.8.0-1052.55 | USN-8179-1 |
| Ubuntu 24.04 LTS | linux-aws-6.17 | 6.17.0-1009.9~24.04.2 | USN-8094-1 |
| Ubuntu 24.04 LTS | linux-azure | 6.8.0-1054.60 | USN-8258-1 |
| Ubuntu 24.04 LTS | linux-azure-6.17 | 6.17.0-1010.10~24.04.1 | USN-8094-4 |
| Ubuntu 24.04 LTS | linux-gcp | 6.8.0-1054.57 | USN-8179-1 |
| Ubuntu 24.04 LTS | linux-gcp-6.17 | 6.17.0-1009.9~24.04.3 | USN-8094-2 |
| Ubuntu 24.04 LTS | linux-gke | 6.8.0-1050.56 | USN-8179-1 |
| Ubuntu 24.04 LTS | linux-gkeop | 6.8.0-1037.40 | USN-8179-1 |
| Ubuntu 24.04 LTS | linux-hwe-6.17 | 6.17.0-19.19~24.04.2 | USN-8094-1 |
| Ubuntu 24.04 LTS | linux-ibm | 6.8.0-1051.51 | USN-8179-1 |
| Ubuntu 24.04 LTS | linux-lowlatency | 6.8.0-110.110.1 | USN-8179-1 |
| Ubuntu 24.04 LTS | linux-nvidia | 6.8.0-1051.54 | USN-8185-1 |
| Ubuntu 24.04 LTS | linux-nvidia-6.17 | 6.17.0-1018.18 | — |
| Ubuntu 24.04 LTS | linux-nvidia-lowlatency | 6.8.0-1051.54.1 | USN-8185-2 |
| Ubuntu 24.04 LTS | linux-nvidia-tegra | 6.8.0-1022.22 | USN-8265-1 |
| Ubuntu 24.04 LTS | linux-oem-6.17 | 6.17.0-1017.17 | USN-8152-1 |
| Ubuntu 24.04 LTS | linux-oracle | 6.8.0-1049.50 | USN-8203-1 |
| Ubuntu 24.04 LTS | linux-oracle-6.17 | 6.17.0-1009.9~24.04.1 | USN-8094-1 |
| Ubuntu 24.04 LTS | linux-raspi | 6.8.0-1052.56 | USN-8179-3 |
| Ubuntu 24.04 LTS | linux-riscv +10 | No fix yet | — |
| Ubuntu 24.04 LTS | linux-riscv-6.17 | 6.17.0-19.19.1~24.04.1 | — |
| Ubuntu 22.04 LTS | linux-aws-6.8 | 6.8.0-1052.55~22.04.1 | USN-8179-1 |
| Ubuntu 22.04 LTS | linux-azure-6.8 | 6.8.0-1059.65~22.04.1 | USN-8440-1 |
| Ubuntu 22.04 LTS | linux-gcp-6.8 | 6.8.0-1054.57~22.04.1 | USN-8179-4 |
| Ubuntu 22.04 LTS | linux-hwe-6.8 +1 | 6.8.0-110.110~22.04.1 | USN-8179-3 |
| Ubuntu 22.04 LTS | linux-ibm-6.8 | 6.8.0-1051.51~22.04.1 | USN-8179-3 |
| Ubuntu 22.04 LTS | linux-lowlatency-hwe-6.8 | 6.8.0-110.110.1~22.04.1 | USN-8179-1 |
| Ubuntu 22.04 LTS | linux-nvidia-6.8 | 6.8.0-1051.54~22.04.1 | USN-8185-1 |
| Ubuntu 22.04 LTS | linux-oracle-6.8 | 6.8.0-1049.50~22.04.1 | USN-8203-1 |
| Ubuntu 22.04 LTS | linux-riscv +32 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +28 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
| Ubuntu Pro Realtime 24.04 LTS | linux-raspi-realtime | 6.8.0-2042.43 | USN-8204-1 |
| Ubuntu Pro Realtime 24.04 LTS | linux-realtime | 6.8.1-1047.48 | USN-8184-1 |
| Ubuntu Pro Realtime 24.04 LTS | linux-realtime-6.17 | 6.17.0-1008.9~24.04.1 | USN-8094-3 |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime-6.8 | 6.8.1-1047.48~22.04.1 | USN-8184-1 |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-aws-fips | 6.8.0-1052.55+fips1 | USN-8179-2 |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-azure-fips | 6.8.0-1053.59+fips1 | — |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-fips | 6.8.0-110.110+fips2 | USN-8179-2 |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-gcp-fips | 6.8.0-1054.57+fips1 | USN-8179-2 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | kernel-source | 6.18.5-1.1 | openSUSE-SU-2026:10039-1 |
| openSUSE Tumbleweed | kernel-source-longterm | 6.18.16-1.1 | openSUSE-SU-2026:10301-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | kernel-livepatch-6.12.63-84.121 | 1:1.0-0.amzn2023 | ALAS2023-2026-1430 |
| Amazon Linux 2023 | perf6.12 +14 | 1:6.12.63-84.121.amzn2023 | ALAS2023-2026-1430 |
Advisories 24
- WID-SEC-2025-2920 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 12, 2026
- USN-8440-1 linux-azure-6.8 vulnerabilities Ubuntu Security Notices (USN) · Nov 7, 2026
- USN-8179-1 linux, linux-aws, linux-aws-6.8, linux-gcp, linux-gke, linux-gkeop, linux-ibm, linux-lowlatency, linux-lowlatency-hwe-6.8 vulnerabilities Ubuntu Security Notices (USN) · Nov 4, 2026
- USN-8203-1 linux-oracle, linux-oracle-6.8 vulnerabilities Ubuntu Security Notices (USN) · Nov 4, 2026
- USN-8204-1 linux-raspi-realtime vulnerabilities Ubuntu Security Notices (USN) · Nov 4, 2026
- USN-8184-1 linux-realtime, linux-realtime-6.8 vulnerabilities Ubuntu Security Notices (USN) · Nov 4, 2026
- USN-8185-1 linux-nvidia, linux-nvidia-6.8 vulnerabilities Ubuntu Security Notices (USN) · Nov 4, 2026
- USN-8185-2 linux-nvidia-lowlatency vulnerabilities Ubuntu Security Notices (USN) · Nov 4, 2026
- USN-8179-3 linux-hwe-6.8, linux-ibm-6.8, linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Nov 4, 2026
- USN-8094-1 linux, linux-aws, linux-aws-6.17, linux-gcp, linux-hwe-6.17, linux-oracle, linux-oracle-6.17 vulnerabilities Ubuntu Security Notices (USN) · Nov 4, 2026
- USN-8094-2 linux-gcp-6.17, linux-realtime vulnerabilities Ubuntu Security Notices (USN) · Nov 4, 2026
- USN-8265-1 linux-nvidia-tegra vulnerabilities Ubuntu Security Notices (USN) · Nov 4, 2026
- USN-8258-1 linux-azure vulnerabilities Ubuntu Security Notices (USN) · Nov 4, 2026
- USN-8179-4 linux-gcp-6.8 vulnerabilities Ubuntu Security Notices (USN) · Nov 4, 2026
- USN-8152-1 linux-oem-6.17 vulnerabilities Ubuntu Security Notices (USN) · Nov 4, 2026
- USN-8094-3 linux-realtime-6.17 vulnerabilities Ubuntu Security Notices (USN) · Nov 4, 2026
- USN-8179-2 linux-aws-fips, linux-fips, linux-gcp-fips vulnerabilities Ubuntu Security Notices (USN) · Nov 4, 2026
- USN-8094-4 linux-azure, linux-azure-6.17 vulnerabilities Ubuntu Security Notices (USN) · Nov 4, 2026
- USN-8094-5 linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Nov 4, 2026
- openSUSE-SU-2026:10039-1 kernel-devel-6.18.5-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- DSA-6127-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2026:10301-1 kernel-devel-longterm-6.18.16-1.1 on GA media SUSE / openSUSE Security Updates · Mar 8, 2026
- ALAS2023-2026-1430 Important: kernel6.12 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Feb 18, 2026
- DLA-4476-1 linux-6.1 - security update Debian Security (DSA / DLA) · Feb 10, 2026
References
- https://git.kernel.org/stable/c/79c8a77b1782e2ace96d063be3c41ba540d1e20a
- https://git.kernel.org/stable/c/433d1f7c628c3cbdd7efce064d6c7acd072cf6c4
- https://git.kernel.org/stable/c/907bf69c6b6ce5d038eec7a599d67b45b62624bc
- https://git.kernel.org/stable/c/6e17555728bc469d484c59db4a0abc65c19bc315
- https://git.kernel.org/stable/c/19164d8228317f3f1fe2662a9ba587cfe3b2d29e
- https://git.kernel.org/stable/c/ab5e8ebeee1caa4fcf8be7d8d62c0a7165469076
- https://git.kernel.org/stable/c/be99c62ac7e7af514e4b13f83c891a3cccefaa48