cbcvebase.
CVE-2025-38164
published 2025-07-03

CVE-2025-38164: In the Linux kernel, the following vulnerability has been resolved: f2fs: zone: fix to avoid inconsistence in between SIT and SSA w/ below testcase, it will…

PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.14%
4.2th percentile
In the Linux kernel, the following vulnerability has been resolved: f2fs: zone: fix to avoid inconsistence in between SIT and SSA w/ below testcase, it will cause inconsistence in between SIT and SSA. create_null_blk 512 2 1024 1024 mkfs.f2fs -m /dev/nullb0 mount /dev/nullb0 /mnt/f2fs/ touch /mnt/f2fs/file f2fs_io pinfile set /mnt/f2fs/file fallocate -l 4GiB /mnt/f2fs/file F2FS-fs (nullb0): Inconsistent segment (0) type [1, 0] in SSA and SIT CPU: 5 UID: 0 PID: 2398 Comm: fallocate Tainted: G O 6.13.0-rc1 #84 Tainted: [O]=OOT_MODULE Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 Call Trace: dump_stack_lvl+0xb3/0xd0 dump_stack+0x14/0x20 f2fs_handle_critical_error+0x18c/0x220 [f2fs] f2fs_stop_checkpoint+0x38/0x50 [f2fs] do_garbage_collect+0x674/0x6e0 [f2fs] f2fs_gc_range+0x12b/0x230 [f2fs] f2fs_allocate_pinning_section+0x5c/0x150 [f2fs] f2fs_expand_inode_data+0x1cc/0x3c0 [f2fs] f2fs_fallocate+0x3c3/0x410 [f2fs] vfs_fallocate+0x15f/0x4b0 __x64_sys_fallocate+0x4a/0x80 x64_sys_call+0x15e8/0x1b80 do_syscall_64+0x68/0x130 entry_SYSCALL_64_after_hwframe+0x67/0x6f RIP: 0033:0x7f9dba5197ca F2FS-fs (nullb0): Stopped filesystem due to reason: 4 The reason is f2fs_gc_range() may try to migrate block in curseg, however, its SSA block is not uptodate due to the last summary block data is still in cache of curseg. In this patch, we add a condition in f2fs_gc_range() to check whether section is opened or not, and skip block migration for opened section.

Affected

23 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.12.35-1 (forky)linux 6.12.35-1 (forky)
linuxlinux
linuxlinux>= 40d76c393cca83938b11eb7ca8983aa3cd0ed69b < d1365d2abfaf2d85ee51a005da3ca373aea97f6ad1365d2abfaf2d85ee51a005da3ca373aea97f6a
linuxlinux>= 6.6.33 < 6.6.1306.6.130
linuxlinux>= 9703d69d9d153bb230711d0d577454552aeb13d4 < 44a51592ac657d8e422585414d7ec17a5b50fb0e44a51592ac657d8e422585414d7ec17a5b50fb0e
linuxlinux>= 9703d69d9d153bb230711d0d577454552aeb13d4 < 8d9431b0d11a5030aa1ce477defee455b38217018d9431b0d11a5030aa1ce477defee455b3821701
linuxlinux>= 9703d69d9d153bb230711d0d577454552aeb13d4 < 773704c1ef96a8b70d0d186ab725f50548de82c4773704c1ef96a8b70d0d186ab725f50548de82c4
linuxlinux_kernel>= 0 < 6.12.35-16.12.35-1
linuxlinux_kernel>= 0 < 6.12.35-16.12.35-1
linuxlinux_kernel>= 0 < 6.8.0-100.1006.8.0-100.100
linuxlinux_kernel>= 6.13 < 6.15.36.15.3
linuxlinux_kernel>= 6.6.33 < 6.76.7
linuxlinux_kernel>= 6.9 < 6.12.346.12.34
msrcazl3_kernel_6.6.112.1-2_on_azure_linux_3.0
ubuntulinux-aws
ubuntulinux-aws-6.8
ubuntulinux-gkeop
ubuntulinux-nvidia
ubuntulinux-nvidia-6.8
ubuntulinux-oracle
ubuntulinux-oracle-6.8
ubuntulinux-raspi-realtime
ubuntulinux-realtime

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5LOW
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
vendor_ubuntu3.2LOW
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