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CVE-2024-26973 In the Linux kernel, the following vulnerability has been resolved: fat: fix uninitialized field in nostale…

Description

In the Linux kernel, the following vulnerability has been resolved: fat: fix uninitialized field in nostale filehandles When fat_encode_fh_nostale() encodes file handle without a parent it stores only first 10 bytes of the file handle. However the length of the file handle must be a multiple of 4 so the file handle is actually 12 bytes long and the last two bytes remain uninitialized. This is not great at we potentially leak uninitialized information with the handle to userspace. Properly initialize the full handle length.

Affected products and versions

Product Affected versions Fixed in
Linux 6.9 earliest → < 6.9 6.9
Linux 6.8 earliest → < 6.8.3 6.8.3
Linux 6.7 earliest → < 6.7.12 6.7.12
Linux 6.6 earliest → < 6.6.24 6.6.24
Linux 6.1 earliest → < 6.1.84 6.1.84
Linux 5.15 earliest → < 5.15.154 5.15.154
Linux 5.10 earliest → < 5.10.215 5.10.215
Linux 5.4 earliest → < 5.4.274 5.4.274
Linux 4.19 earliest → < 4.19.312 4.19.312
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Product Affected versions Fixed in
Linux 3.10 No fix stated
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem 1.1 earliest → < 1.1.1 1.1.1
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP 3.1 3.1.0 → < 3.1.5 3.1.5
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 3.1 3.1.0 → < 3.1.5 3.1.5
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP 3.1 3.1.0 → < 3.1.5 3.1.5
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