CVE-2023-53399: ksmbd: fix NULL pointer dereference in smb2_get_info_filesystem()

CVE-2023-53399 PUBLISHED CVSS 7.5 HIGH

ksmbd: fix NULL pointer dereference in smb2_get_info_filesystem()

Reported by linux · Published September 18, 2025

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix NULL pointer dereference in smb2_get_info_filesystem() If share is , share->path is NULL and it cause NULL pointer dereference issue.

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

Package	Ecosystem	Fixed in
linux_kernel	linux	6.3.2, 6.2.15, 6.1.28

Risk scores

CVSS 3.1

7.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Vendor	Product	Versions
Linux	Linux	0626e6641f6b467447c81dd7678a69c66f7746cf, 0626e6641f6b467447c81dd7678a69c66f7746cf, 0626e6641f6b467447c81dd7678a69c66f7746cf
Linux	Linux	5.15, 0, 5.15.111
linux	linux_kernel	5.15, 5.15, 5.15
Linux	Linux	0626e6641f6b467447c81dd7678a69c66f7746cf, 0626e6641f6b467447c81dd7678a69c66f7746cf, 0626e6641f6b467447c81dd7678a69c66f7746cf

Timeline

Sep 18, 2025 CVE Published
Sep 19, 2025 EPSS Score (30 in total, the first dated here)
Oct 12, 2025 Coalition ESS Score (13 in total, the first dated here)
Jan 15, 2026 CVE Updated
Jan 24, 2026 Security Advisory (67 in total, the first dated here)
Oct 7, 2026 Distribution Patch (52 in total, the first dated here)

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References

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