In the Linux kernel, the following vulnerability has been resolved:
afs: Fix merge preference rule failure condition
syzbot reported a lock held when returning to userspace[1]. This is because if argc is less than 0 and the function returns directly, the held inode lock is not released.
Fix this by store the error in ret and jump to done to clean up instead of returning directly.
[dh: Modified Lizhi Xu's original patch to make it honour the error code from afs_split_string()]
[1] WARNING: lock held when returning to user space! 6.13.0-rc3-syzkaller-00209-g499551201b5f #0 Not tainted ------------------------------------------------ syz-executor133/5823 is leaving the kernel with locks still held! 1 lock held by syz-executor133/5823: #0: ffff888071cffc00 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline] #0: ffff888071cffc00 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: afs_proc_addr_prefs_write+0x2bb/0x14e0 fs/afs/addr_prefs.c:388
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade kernel-debugUpgrade kernel-rt-64k-debug-develUpgrade kernel-64k-modules-extraUpgrade kernel-64k-debug-modulesUpgrade kernel-rt-develUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-devel-matchedUpgrade kernel-debug-uki-virtUpgrade kernel-docUpgrade kernel-debug-develUpgrade kernel-develUpgrade libperfUpgrade kernel-rt-64k-debug-modules-extraUpgrade kernel-uki-virtUpgrade kernel-rt-debug-develUpgrade python3-perfUpgrade kernel-rt-modulesUpgrade kernel-rt-debugUpgrade kernel-rt-64k-debug-modules-coreUpgrade kernel-rt-debug-modules-coreUpgrade kernel-rt-debug-modules-extraUpgrade perfUpgrade kernel-64k-modules-coreUpgrade rtlaUpgrade kernel-64k-debug-modules-coreUpgrade kernel-64k-debug-develUpgrade kernel-rt-coreUpgrade kernel-rt-64k-debug-coreUpgrade kernel-rt-64k-modules-extraUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-tools-libs-develUpgrade kernel-rt-64k-modulesUpgrade kernel-rt-64k-debugUpgrade kernel-zfcpdumpUpgrade kernel-debug-modules-extraUpgrade kernel-zfcpdump-modules-coreUpgrade rvUpgrade kernel-debug-modules-coreUpgrade kernel-64kUpgrade kernel-64k-debug-devel-matchedUpgrade kernel-rt-modules-extraUpgrade kernel-debug-devel-matchedUpgrade kernel-rt-modules-coreUpgrade kernel-modulesUpgrade kernel-abi-stablelistsUpgrade kernel-headersUpgrade kernel-zfcpdump-develUpgrade kernel-tools-libsUpgrade kernel-modules-coreUpgrade kernelUpgrade kernel-64k-coreUpgrade kernel-zfcpdump-modulesUpgrade kernel-rt-64k-coreUpgrade kernel-rt-64k-debug-modulesUpgrade kernel-rtUpgrade kernel-coreUpgrade kernel-rt-debug-modulesUpgrade kernel-rt-debug-coreUpgrade kernel-debug-modulesUpgrade kernel-cross-headersUpgrade kernel-64k-devel-matchedUpgrade kernel-debug-coreUpgrade kernel-rt-64k-modules-coreUpgrade kernel-64k-develUpgrade kernel-zfcpdump-coreUpgrade kernel-uki-virt-addonsUpgrade kernel-64k-debugUpgrade kernel-rt-64kUpgrade kernel-rt-64k-develUpgrade kernel-toolsUpgrade kernel-64k-debug-modules-extraUpgrade kernel-modules-extraUpgrade kernel-64k-modulesUpgrade kernel-64k-debug-core | Nov 20, 2025 | Nov 11, 2025 |
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Oracle_linux | — | Upgrade kernel | Nov 28, 2025 | Jan 31, 2025 |
| Redhat_linux | — | No solution existsUpgrade kernel-rtUpgrade kernel | Jul 9, 2025 | Jan 31, 2025 |
| Rocky_linux | — | Upgrade kernel-rt-debug-modules-extraUpgrade kernel-rt-coreUpgrade kernel-debug-develUpgrade kernel-rt-debugUpgrade kernel-rt-debug-modulesUpgrade kernel-coreUpgrade kernel-uki-virtUpgrade perf-debuginfoUpgrade kernel-debugUpgrade kernel-debuginfoUpgrade kernel-zfcpdump-modules-extraUpgrade python3-perfUpgrade kernel-zfcpdump-devel-matchedUpgrade rtlaUpgrade kernel-modules-extraUpgrade kernel-rt-develUpgrade kernel-debug-coreUpgrade kernel-zfcpdump-debuginfoUpgrade kernel-debug-uki-virtUpgrade kernel-rt-debug-modules-coreUpgrade perfUpgrade kernel-tools-debuginfoUpgrade kernel-develUpgrade python3-perf-debuginfoUpgrade kernel-modulesUpgrade kernel-rt-modulesUpgrade libperfUpgrade kernel-zfcpdump-coreUpgrade kernel-rt-modules-coreUpgrade kernel-rt-debug-coreUpgrade kernel-rt-modules-extraUpgrade kernel-rt-debug-develUpgrade kernel-tools-libsUpgrade libperf-debuginfoUpgrade kernel-zfcpdump-develUpgrade kernel-zfcpdumpUpgrade kernel-rt-debug-debuginfoUpgrade kernel-debug-devel-matchedUpgrade kernelUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-uki-virt-addonsUpgrade kernel-tools-libs-develUpgrade kernel-zfcpdump-modules-coreUpgrade kernel-rt-debuginfoUpgrade kernel-rtUpgrade kernel-modules-coreUpgrade kernel-debug-modules-extraUpgrade kernel-debug-modules-coreUpgrade kernel-debug-modulesUpgrade kernel-devel-matchedUpgrade kernel-toolsUpgrade rvUpgrade kernel-zfcpdump-modulesUpgrade kernel-debug-debuginfoUpgrade kernel-debuginfo-common-s390x | Feb 5, 2026 | Nov 21, 2025 |
| Ubuntu | — | Upgrade linux-image-oem-22.04Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-6.8.0-1030-awsUpgrade linux-image-6.8.0-1029-nvidiaUpgrade linux-image-azure-fde-lts-24.04Upgrade linux-image-6.8.0-64-generic-64kUpgrade linux-image-azure-lts-24.04Upgrade linux-image-lowlatency-64kUpgrade linux-image-6.8.0-62-generic-64kUpgrade linux-image-gkeopUpgrade linux-image-aws-lts-24.04Upgrade linux-image-6.11.0-1012-awsUpgrade linux-image-generic-64k-6.8Upgrade linux-image-6.8.0-62-lowlatencyUpgrade linux-image-oem-22.04dUpgrade linux-image-6.8.0-1031-gcp-64kUpgrade linux-image-nvidia-6.8Upgrade linux-image-gcp-64kUpgrade linux-image-generic-64kUpgrade linux-image-ibmUpgrade linux-image-6.8.0-1030-aws-64kUpgrade linux-image-azure-fdeUpgrade linux-image-oem-22.04aUpgrade linux-image-6.8.1-1023-realtimeUpgrade linux-image-6.8.0-1029-raspiUpgrade linux-image-6.11.0-1013-azureUpgrade linux-image-6.8.0-1029-oemUpgrade linux-image-6.11.0-1020-oemUpgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-genericUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-raspiUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-azureUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-6.8.0-1029-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-1029-nvidia-lowlatencyUpgrade linux-image-6.8.0-1029-nvidia-64kUpgrade linux-image-ibm-classicUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-virtual-6.8Upgrade linux-image-nvidiaUpgrade linux-image-6.11.0-1014-oracleUpgrade linux-image-oem-22.04cUpgrade linux-image-6.8.0-1026-gkeUpgrade linux-image-6.11.0-1014-oracle-64kUpgrade linux-image-azure-nvidiaUpgrade linux-image-6.8.0-1027-ibmUpgrade linux-image-kvmUpgrade linux-image-lowlatencyUpgrade linux-image-oem-24.04bUpgrade linux-image-6.8.0-1030-azure-fdeUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-6.11.0-1011-raspiUpgrade linux-image-raspi-realtimeUpgrade linux-image-lowlatency-64k-hwe-24.04Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-gcpUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-oem-22.04bUpgrade linux-image-6.8.0-1027-oracleUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-6.11.0-1008-realtimeUpgrade linux-image-awsUpgrade linux-image-6.11.0-1012-lowlatency-64kUpgrade linux-image-aws-64kUpgrade linux-image-6.11.0-1013-azure-fdeUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-6.11.0-1013-gcpUpgrade linux-image-6.8.0-1030-azureUpgrade linux-image-6.8.0-1031-gcpUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-oem-24.04aUpgrade linux-image-gkeUpgrade linux-image-6.8.0-2024-raspi-realtimeUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-realtimeUpgrade linux-image-6.11.0-1013-gcp-64kUpgrade linux-image-generic-6.8Upgrade linux-image-generic-lpaeUpgrade linux-image-6.8.0-1013-gkeopUpgrade linux-image-6.8.0-62-genericUpgrade linux-image-6.11.0-24-genericUpgrade linux-image-lowlatency-hwe-24.04Upgrade linux-image-6.8.0-62-lowlatency-64kUpgrade linux-image-oracleUpgrade linux-image-gkeop-6.8Upgrade linux-image-6.8.0-64-genericUpgrade linux-image-6.11.0-24-generic-64kUpgrade linux-image-nvidia-64kUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-6.11.0-1012-lowlatencyUpgrade linux-image-gcp-lts-24.04Upgrade linux-image-oracle-64kUpgrade linux-image-6.8.0-1018-azure-nvidiaUpgrade linux-image-virtualUpgrade linux-image-oem-24.04Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-6.8.0-1027-oracle-64k | Apr 24, 2025 | Jan 31, 2025 |
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