7.1

CVE-2026-53303

f2fs: protect extension_list reading with sb_lock in f2fs_sbi_show()

In the Linux kernel, the following vulnerability has been resolved:

f2fs: protect extension_list reading with sb_lock in f2fs_sbi_show()

In f2fs_sbi_show(), the extension_list, extension_count and
hot_ext_count are read without holding sbi->sb_lock. If a concurrent
sysfs store modifies the extension list via f2fs_update_extension_list(),
the show path may read inconsistent count and array contents, potentially
leading to out-of-bounds access or displaying stale data.

Fix this by holding sb_lock around the entire extension list read
and format operation.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.17 < 6.1.175
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.141
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.91
Linux ≫ Linux Kernel Version >= 6.13 < 6.18.33
Linux ≫ Linux Kernel Version >= 6.19 < 7.0.10
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.13% 0.026
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.1 1.8 5.2
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

https://git.kernel.org/stable/c/d3ff0c121bbaef026df6248ab7ef6f0b068b0647
Patch
https://git.kernel.org/stable/c/cea15f66b7b68b2c50943a6660e0692c6635e4eb
Patch
https://git.kernel.org/stable/c/4b3a1bf4c2ffd4c9595d900ead78c9035894a025
Patch
https://git.kernel.org/stable/c/d0e877810baf613b018fd9747440b9d4d9db1428
Patch
https://git.kernel.org/stable/c/ea3ab43a1f3cf2c7cecd75c8be1ee99a5e94a92e
Patch
https://git.kernel.org/stable/c/5909bedbed38c558bee7cb6758ceedf9bc3a9194
Patch