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In the Linux kernel, the following vulnerability has been resolved:
f2fs: fix to avoid use f2fs_bug_on() in f2fs_new_node_page()
As Dipanjan Das <[email protected]> reported, syzkaller found a f2fs bug as below:
RIP: 0010:f2fs_new_node_page+0x19ac/0x1fc0 fs/f2fs/node.c:1295 Call Trace: write_all_xattrs fs/f2fs/xattr.c:487 [inline] __f2fs_setxattr+0xe76/0x2e10 fs/f2fs/xattr.c:743 f2fs_setxattr+0x233/0xab0 fs/f2fs/xattr.c:790 f2fs_xattr_generic_set+0x133/0x170 fs/f2fs/xattr.c:86 __vfs_setxattr+0x115/0x180 fs/xattr.c:182 __vfs_setxattr_noperm+0x125/0x5f0 fs/xattr.c:216 __vfs_setxattr_locked+0x1cf/0x260 fs/xattr.c:277 vfs_setxattr+0x13f/0x330 fs/xattr.c:303 setxattr+0x146/0x160 fs/xattr.c:611 path_setxattr+0x1a7/0x1d0 fs/xattr.c:630 __do_sys_lsetxattr fs/xattr.c:653 [inline] __se_sys_lsetxattr fs/xattr.c:649 [inline] __x64_sys_lsetxattr+0xbd/0x150 fs/xattr.c:649 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x46/0xb0
NAT entry and nat bitmap can be inconsistent, e.g. one nid is free in nat bitmap, and blkaddr in its NAT entry is not NULL_ADDR, it may trigger BUG_ON() in f2fs_new_node_page(), fix it.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jun 20, 2025 | Jun 20, 2025 |
| Ubuntu | — | Upgrade linux-ibm-5.4Upgrade linux-azure-5.4Upgrade linux-azureUpgrade linux-awsUpgrade linux-raspiUpgrade linux-aws-fipsUpgrade linux-aws-5.4Upgrade linux-hwe-5.4Upgrade linux-iotUpgrade linux-intel-iotg-5.15Upgrade linux-ibmUpgrade linux-gcp-fipsUpgrade linux-azure-fipsUpgrade linuxUpgrade linux-azure-fdeUpgrade linux-hwe-5.15Upgrade linux-lowlatencyUpgrade linux-aws-5.15Upgrade linux-kvmUpgrade linux-riscv-5.15Upgrade linux-gkeUpgrade linux-azure-5.15Upgrade linux-azure-fde-5.15Upgrade linux-intel-iotgUpgrade linux-gcp-5.15Upgrade linux-oracle-5.15Upgrade linux-realtimeUpgrade linux-lowlatency-hwe-5.15Upgrade linux-raspi-5.4Upgrade linux-oracleUpgrade linux-gkeopUpgrade linux-fipsUpgrade linux-oracle-5.4Upgrade linux-nvidiaUpgrade linux-gcp-5.4Upgrade linux-bluefieldUpgrade linux-gcp | Jun 26, 2025 | Jun 18, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Jun 18, 2025 |
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