CVE-2022-50762

fs/ntfs3: Avoid UBSAN error on true_sectors_per_clst()

N/A

Published: December 24, 2025 at 01:05 PM UTC

Updated: June 17, 2026 at 05:24 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

N/A

Exploit prediction

EPSS 0.3%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

v ≥ 5.17.13v ≥ 5.18.25.15.45 ≤ v < 5.15.865.17.13 ≤ v < 5.185.18.2 ≤ v < 5.195.19 ≤ v < 6.0.165.19 ≤ v < 6.1.25.19 ≤ v < 6.24746c49b11b2403f5b5b07c6eac9e60663dcd9a35.15.45 5.17.13 5.18.2 5.1958cf68a1886d14ffdc5c892ce483a82156769e88a2b6986316a2d106f6951e76db70fa4b2fde64a9a3b774342fa752a5290c0de36375289dfcf4a260

Vendor states this is fixed in 4b51f27d4448c84957bce190292f75d4896d56b3 (fixed)

Vendor states this is fixed in 8fe280ae85177c2323ae8c9849ff27a3a6b69506 (fixed)

Vendor states this is fixed in 95afb464c86c6e9e95ea9e595282fa6f693072e8 (fixed)

Vendor states this is fixed in caad9dd8792a2622737b7273cb34835fd9536cd2 (fixed)

Vendor states this is fixed in 5.15.86 (unaffected)

Affected range stops below 5.18, so it looks safe — our inference, not a vendor statement

Vendor states this is fixed in 5.19 (unaffected)

Vendor states this is fixed in 6.0.16 (unaffected)

Vendor states this is fixed in 6.1.2 (unaffected)

Vendor states this is fixed in 6.2 (unaffected)