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(parent: 698d1b4) | patch
fs/filesystems: Fix potential unsigned integer underflow in fs_name()
authorZijun Hu <quic_zijuhu@quicinc.com>
Thu, 10 Apr 2025 11:45:27 +0000 (19:45 +0800)
committerChristian Brauner <brauner@kernel.org>
Mon, 14 Apr 2025 11:05:59 +0000 (13:05 +0200)
commit1363c134ade81e425873b410566e957fecebb261
tree68e4712cf805cbc9e44cd58ea288be27838a29b6tree
parent698d1b483cd1c7126d61de8d155aceec50c04fb2commit | diff
fs/filesystems: Fix potential unsigned integer underflow in fs_name()

fs_name() has @index as unsigned int, so there is underflow risk for
operation '@index--'.

Fix by breaking the for loop when '@index == 0' which is also more proper
than '@index <= 0' for unsigned integer comparison.

Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/20250410-fix_fs-v1-1-7c14ccc8ebaa@quicinc.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
fs/filesystems.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)