What’s Vulnerable › Vulnerabilities

CVE-2022-50762: fs/ntfs3: Avoid UBSAN error on true_sectors_per_clst()

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-24 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Avoid UBSAN error on true_sectors_per_clst() syzbot reported UBSAN error as below: [ 76.901829][ T6677] ================================================================================ [ 76.903908][ T6677] UBSAN: shift-out-of-bounds in fs/ntfs3/super.c:675:13 [ 76.905363][ T6677] shift exponent -247 is negative This patch avoid this error.

Affected products

• Linux kernel: from 5.15.45 before 5.15.86; from 5.17.13 before 5.18; from 5.18.2 before 5.19; 5.19 — fixed in 5.15.86, 5.18, 5.19, 6.2

How to fix

Upgrade to a fixed version: Linux kernel 5.15.86, 5.18, 5.19, 6.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/4b51f27d4448c84957bce190292f75d4896d56b3
• https://git.kernel.org/stable/c/8fe280ae85177c2323ae8c9849ff27a3a6b69506
• https://git.kernel.org/stable/c/95afb464c86c6e9e95ea9e595282fa6f693072e8
• https://git.kernel.org/stable/c/caad9dd8792a2622737b7273cb34835fd9536cd2

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