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| author | Mathias Krause <minipli@grsecurity.net> | 2025-12-09 22:09:03 +0100 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2025-12-15 15:12:28 +0100 |
| commit | a260bd22a355bcdb74cedac6ab9b10739cd2c62c (patch) | |
| tree | 10fe197ba2ae6c1c1c2756c7a9671ae571a67d8b /include | |
| parent | 8f0b4cce4481fb22653697cced8d0d04027cb1e8 (diff) | |
media: mc: fix potential use-after-free in media_request_alloc()
Commit 6f504cbf108a ("media: convert media_request_alloc() to
FD_PREPARE()") moved the call to fd_install() (now hidden in
fd_publish()) before the snprintf(), making the later write to
potentially already freed memory, as userland is free to call
close() concurrently right after the call to fd_install() which
may end up in the request_fops.release() handler freeing 'req'.
Fixes: 6f504cbf108a ("media: convert media_request_alloc() to FD_PREPARE()")
Signed-off-by: Mathias Krause <minipli@grsecurity.net>
Link: https://patch.msgid.link/20251209210903.603958-1-minipli@grsecurity.net
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions