In the Linux kernel, the following vulnerability has been resolved:
f2fs: fix to do sanity check for inline inode
Yanming reported a kernel bug in Bugzilla kernel [1], which can be reproduced. The bug message is:
The kernel message is shown below:
kernel BUG at fs/inode.c:611! Call Trace: evict+0x282/0x4e0 __dentry_kill+0x2b2/0x4d0 dput+0x2dd/0x720 do_renameat2+0x596/0x970 __x64_sys_rename+0x78/0x90 do_syscall_64+0x3b/0x90
[1] https://bugzilla.kernel.org/show_bug.cgi?id=215895
The bug is due to fuzzed inode has both inline_data and encrypted flags. During f2fs_evict_inode(), as the inode was deleted by rename(), it will cause inline data conversion due to conflicting flags. The page cache will be polluted and the panic will be triggered in clear_inode().
Try fixing the bug by doing more sanity checks for inline data inode in sanity_check_inode().
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 |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Feb 27, 2025 | Feb 27, 2025 |
| Ubuntu | — | Upgrade linux-azure-fde-5.15Upgrade linux-azureUpgrade linux-kvmUpgrade linux-hwe-5.15Upgrade linux-azure-5.15Upgrade linux-nvidiaUpgrade linux-oracle-5.15Upgrade linux-intel-iotg-5.15Upgrade linux-realtimeUpgrade linux-ibmUpgrade linux-gcp-5.15Upgrade linux-intel-iotgUpgrade linux-oracleUpgrade linux-gkeopUpgrade linux-gkeUpgrade linux-gcpUpgrade linux-awsUpgrade linux-lowlatency-hwe-5.15Upgrade linux-riscv-5.15Upgrade linux-lowlatencyUpgrade linux-aws-5.15Upgrade linux-raspiUpgrade linux | Mar 19, 2025 | Feb 26, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Feb 26, 2025 |
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