In the Linux kernel, the following vulnerability has been resolved:
f2fs: fix to don't panic system for no free segment fault injection
f2fs: fix to don't panic system for no free segment fault injection
syzbot reports a f2fs bug as below:
F2FS-fs (loop0): inject no free segment in get_new_segment of __allocate_new_segment+0x1ce/0x940 fs/f2fs/segment.c:3167 F2FS-fs (loop0): Stopped filesystem due to reason: 7 ------------[ cut here ]------------ kernel BUG at fs/f2fs/segment.c:2748! CPU: 0 UID: 0 PID: 5109 Comm: syz-executor304 Not tainted 6.11.0-rc6-syzkaller-00363-g89f5e14d05b4 #0 RIP: 0010:get_new_segment fs/f2fs/segment.c:2748 [inline] RIP: 0010:new_curseg+0x1f61/0x1f70 fs/f2fs/segment.c:2836 Call Trace: __allocate_new_segment+0x1ce/0x940 fs/f2fs/segment.c:3167 f2fs_allocate_new_section fs/f2fs/segment.c:3181 [inline] f2fs_allocate_pinning_section+0xfa/0x4e0 fs/f2fs/segment.c:3195 f2fs_expand_inode_data+0x5d6/0xbb0 fs/f2fs/file.c:1799 f2fs_fallocate+0x448/0x960 fs/f2fs/file.c:1903 vfs_fallocate+0x553/0x6c0 fs/open.c:334 do_vfs_ioctl+0x2592/0x2e50 fs/ioctl.c:886 __do_sys_ioctl fs/ioctl.c:905 [inline] __se_sys_ioctl+0x81/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0010:get_new_segment fs/f2fs/segment.c:2748 [inline] RIP: 0010:new_curseg+0x1f61/0x1f70 fs/f2fs/segment.c:2836
The root cause is when we inject no free segment fault into f2fs, we should not panic system, fix it.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 27, 2026 | Jul 27, 2026 |
| Ubuntu | — | Upgrade linux-image-gcp-6.8Upgrade linux-image-oem-22.04aUpgrade linux-image-6.8.0-1033-gcpUpgrade linux-image-azure-fde-lts-24.04Upgrade linux-image-oem-24.04aUpgrade linux-image-nvidia-64kUpgrade linux-image-6.8.0-1034-azureUpgrade linux-image-oem-24.04bUpgrade linux-image-aws-64kUpgrade linux-image-azure-fdeUpgrade linux-image-awsUpgrade linux-image-generic-64k-6.8Upgrade linux-image-ibmUpgrade linux-image-oem-6.8Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-raspi-realtimeUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-6.8.0-1031-nvidiaUpgrade linux-image-gcpUpgrade linux-image-virtualUpgrade linux-image-azure-lts-24.04Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-6.11.0-1015-oemUpgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-oracle-64kUpgrade linux-image-lowlatencyUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-azure-6.8Upgrade linux-image-gke-6.8Upgrade linux-image-gkeop-6.8Upgrade linux-image-oem-22.04bUpgrade linux-image-6.11.0-1009-gcpUpgrade linux-image-azure-nvidia-6.8Upgrade linux-image-raspi-realtime-6.8Upgrade linux-image-aws-lts-24.04Upgrade linux-image-6.11.0-18-genericUpgrade linux-image-6.8.0-1034-azure-fdeUpgrade linux-image-6.8.1-1025-realtimeUpgrade linux-image-ibm-classicUpgrade linux-image-6.8.0-1032-aws-64kUpgrade linux-image-6.11.0-1009-azureUpgrade linux-image-oracleUpgrade linux-image-aws-64k-6.8Upgrade linux-image-ibm-6.8Upgrade linux-image-6.11.0-1011-oracle-64kUpgrade linux-image-generic-6.8Upgrade linux-image-6.8.0-1031-nvidia-64kUpgrade linux-image-kvmUpgrade linux-image-6.11.0-1010-lowlatencyUpgrade linux-image-6.11.0-1011-oracleUpgrade linux-image-oem-22.04cUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-oracle-64k-6.8Upgrade linux-image-azure-nvidiaUpgrade linux-image-6.8.0-1032-awsUpgrade linux-image-6.11.0-1005-realtimeUpgrade linux-image-6.8.0-1029-ibmUpgrade linux-image-gcp-lts-24.04Upgrade linux-image-6.8.0-1029-oracle-64kUpgrade linux-image-6.8.0-1015-gkeopUpgrade linux-image-azure-nvidia-lts-24.04Upgrade linux-image-6.11.0-1010-lowlatency-64kUpgrade linux-image-aws-6.8Upgrade linux-image-nvidia-6.8Upgrade linux-image-raspiUpgrade linux-image-6.8.0-1022-azure-nvidiaUpgrade linux-image-oem-22.04Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-gkeopUpgrade linux-image-generic-lpaeUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-gkeUpgrade linux-image-raspi-6.8Upgrade linux-image-oem-22.04dUpgrade linux-image-6.8.0-1033-gcp-64kUpgrade linux-image-azureUpgrade linux-image-azure-fde-6.8Upgrade linux-image-6.8.0-2026-raspi-realtimeUpgrade linux-image-6.8.0-64-lowlatency-64kUpgrade linux-image-6.8.0-1031-raspiUpgrade linux-image-generic-64kUpgrade linux-image-virtual-6.8Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-6.11.0-1008-raspiUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-realtime-hwe-24.04Upgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-lowlatency-6.8Upgrade linux-image-nvidia-64k-6.8Upgrade linux-image-6.8.0-1029-oracleUpgrade linux-image-6.8.0-64-genericUpgrade linux-image-realtimeUpgrade linux-image-6.8.0-1031-oemUpgrade linux-image-oracle-6.8Upgrade linux-image-gcp-64kUpgrade linux-image-lowlatency-64kUpgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-6.11.0-1009-azure-fdeUpgrade linux-image-6.8.0-1028-gkeUpgrade linux-image-6.11.0-1009-awsUpgrade linux-image-oem-24.04Upgrade linux-image-6.11.0-18-generic-64kUpgrade linux-image-6.8.0-64-generic-64kUpgrade linux-image-realtime-6.8.1Upgrade linux-image-6.8.0-1031-nvidia-lowlatencyUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-6.8.0-64-lowlatencyUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-6.8.0-1031-nvidia-lowlatency-64kUpgrade linux-image-genericUpgrade linux-image-nvidia | Feb 20, 2025 | Oct 21, 2024 |
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