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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2022-50403 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: ext4: fix undefined behavior in bit shift for ext4_check_flag_values Shifting signed 32-bit value by 31 bits is undefined, so changing significant bit to unsigned. The UBSAN warning calltrace like below: UBSAN: shift-out-of-bounds in fs/ext4/ext4.h:591:2 left shift of 1 by 31 places cannot be represented in type 'int' Call Trace: <TASK> dump_stack_lvl+0x7d/0xa5 dump_stack+0x15/0x1b ubsan_epilogue+0xe/0x4e __ubsan_handle_shift_out_of_bounds+0x1e7/0x20c ext4_init_fs+0x5a/0x277 do_one_initcall+0x76/0x430 kernel_init_freeable+0x3b3/0x422 kernel_init+0x24/0x1e0 ret_from_fork+0x1f/0x30 </TASK>


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/205ac16628aca9093931fcbdb4bcd00d0eb94132 kernel.org
https://git.kernel.org/stable/c/3bf678a0f9c017c9ba7c581541dbc8453452a7ae kernel.org
https://git.kernel.org/stable/c/4690a4bdcf1470cb161aff1be30bd143b9dffd89 kernel.org
https://git.kernel.org/stable/c/5da9e607547f73dc7a643f35b0487992fd66910f kernel.org
https://git.kernel.org/stable/c/743e9d708743d98464ccbd56e820d87dc6d1d629 kernel.org
https://git.kernel.org/stable/c/7753d6657873a2523a9989e6c09090cd503bbcda kernel.org
https://git.kernel.org/stable/c/d7f93fc6fba8ff017be871be7edf8614a785ccad kernel.org
https://git.kernel.org/stable/c/dd5639d36a5e4e42fd0fe05cc0b2ad9ddd3fca9d kernel.org
https://git.kernel.org/stable/c/f9cd6980800bbfd11bf94eb5f942049d4d4eaa52 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-50403
NVD Published Date:
09/18/2025
NVD Last Modified:
09/18/2025
Source:
kernel.org