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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2025-38163 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on sbi->total_valid_block_count syzbot reported a f2fs bug as below: ------------[ cut here ]------------ kernel BUG at fs/f2fs/f2fs.h:2521! RIP: 0010:dec_valid_block_count+0x3b2/0x3c0 fs/f2fs/f2fs.h:2521 Call Trace: f2fs_truncate_data_blocks_range+0xc8c/0x11a0 fs/f2fs/file.c:695 truncate_dnode+0x417/0x740 fs/f2fs/node.c:973 truncate_nodes+0x3ec/0xf50 fs/f2fs/node.c:1014 f2fs_truncate_inode_blocks+0x8e3/0x1370 fs/f2fs/node.c:1197 f2fs_do_truncate_blocks+0x840/0x12b0 fs/f2fs/file.c:810 f2fs_truncate_blocks+0x10d/0x300 fs/f2fs/file.c:838 f2fs_truncate+0x417/0x720 fs/f2fs/file.c:888 f2fs_setattr+0xc4f/0x12f0 fs/f2fs/file.c:1112 notify_change+0xbca/0xe90 fs/attr.c:552 do_truncate+0x222/0x310 fs/open.c:65 handle_truncate fs/namei.c:3466 [inline] do_open fs/namei.c:3849 [inline] path_openat+0x2e4f/0x35d0 fs/namei.c:4004 do_filp_open+0x284/0x4e0 fs/namei.c:4031 do_sys_openat2+0x12b/0x1d0 fs/open.c:1429 do_sys_open fs/open.c:1444 [inline] __do_sys_creat fs/open.c:1522 [inline] __se_sys_creat fs/open.c:1516 [inline] __x64_sys_creat+0x124/0x170 fs/open.c:1516 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94 The reason is: in fuzzed image, sbi->total_valid_block_count is inconsistent w/ mapped blocks indexed by inode, so, we should not trigger panic for such case, instead, let's print log and set fsck flag.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/05872a167c2cab80ef186ef23cc34a6776a1a30c kernel.org Patch 
https://git.kernel.org/stable/c/25f3776b58c1c45ad2e50ab4b263505b4d2378ca kernel.org Patch 
https://git.kernel.org/stable/c/49bc7bf38e42cfa642787e947f5721696ea73ac3 kernel.org Patch 
https://git.kernel.org/stable/c/65b3f76592aed5a43c4d79375ac097acf975972b kernel.org Patch 
https://git.kernel.org/stable/c/6a324d77f7ea1a91d55c4b6ad970e3ac9ab6a20d kernel.org Patch 
https://git.kernel.org/stable/c/a39cc43efc1bca74ed9d6cf9e60b995071f7d178 kernel.org Patch 
https://git.kernel.org/stable/c/ccc28c0397f75a3ec9539cceed9db014d7b73869 kernel.org Patch 
https://git.kernel.org/stable/c/f1b743c1955151bd392539b739a3ad155296be13 kernel.org Patch 
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html CVE Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html CVE Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-476 NULL Pointer Dereference cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-38163
NVD Published Date:
07/03/2025
NVD Last Modified:
12/18/2025
Source:
kernel.org