Vulnerability CVE-2024-26973
Published: 2024-05-01

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.

 References:
https://git.kernel.org/stable/c/9840d1897e28f8733cc1e38f97e044f987dc0a63
https://git.kernel.org/stable/c/f52d7663a10a1266a2d3871a6dd8fd111edc549f
https://git.kernel.org/stable/c/a276c595c3a629170b0f052a3724f755d7c6adc6
https://git.kernel.org/stable/c/b7fb63e807c6dadf7ecc1d43448c4f1711d7eeee
https://git.kernel.org/stable/c/c8cc05de8e6b5612b6e9f92c385c1a064b0db375
https://git.kernel.org/stable/c/03a7e3f2ba3ca25f1da1d3898709a08db14c1abb
https://git.kernel.org/stable/c/74f852654b8b7866f15323685f1e178d3386c688
https://git.kernel.org/stable/c/cdd33d54e789d229d6d5007cbf3f53965ca1a5c6
https://git.kernel.org/stable/c/fde2497d2bc3a063d8af88b258dbadc86bd7b57c
Copyright 2026, cxsecurity.com

 

Back to Top