proc: Fix pointer error dereference

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[ Upstream commit f6a495484a ]

The function try_lookup_noperm() can return an error pointer. Add check
for error pointer.

Detected by Smatch:
fs/proc/base.c:2148 proc_fill_cache() error:
'child' dereferencing possible ERR_PTR()

Fixes: 1df98b8bbc ("proc_fill_cache(): clean up, get rid of pointless find_inode_number() use")
Signed-off-by: Ethan Tidmore <ethantidmore06@gmail.com>
Link: https://patch.msgid.link/20260219221001.1117135-1-ethantidmore06@gmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Ethan Tidmore 2026-02-19 16:10:01 -06:00 • committed by Sasha Levin

parent f3970be26a

commit 9605406cf2

1 changed files with 3 additions and 0 deletions

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fs/proc/base.c

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