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| author | Matthew Wilcox <willy@infradead.org> | 2023-06-04 14:16:06 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-09-19 13:20:06 +0300 |
| commit | 6b5d585e23022aa58fe494b16237c2a27efff58e (patch) | |
| tree | 26958a8ae7fa7ec33033ee88592cd6e51d4fd4f0 /fs/eventfd.c | |
| parent | 5101e2c8a5673d971065834d59eb997d4cdff114 (diff) | |
| download | linux-6b5d585e23022aa58fe494b16237c2a27efff58e.tar.xz | |
reiserfs: Check the return value from __getblk()
[ Upstream commit ba38980add7ffc9e674ada5b4ded4e7d14e76581 ]
__getblk() can return a NULL pointer if we run out of memory or if we
try to access beyond the end of the device; check it and handle it
appropriately.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Link: https://lore.kernel.org/lkml/CAFcO6XOacq3hscbXevPQP7sXRoYFz34ZdKPYjmd6k5sZuhGFDw@mail.gmail.com/
Tested-by: butt3rflyh4ck <butterflyhuangxx@gmail.com>
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") # probably introduced in 2002
Acked-by: Edward Shishkin <edward.shishkin@gmail.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'fs/eventfd.c')
0 files changed, 0 insertions, 0 deletions