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| author |   Alexey Dobriyan <adobriyan@gmail.com> | 2024-09-03 22:48:19 +0300 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2024-09-04 08:01:30 -0600 |
| commit | 697ba0b6ec4ae04afb67d3911799b5e2043b4455 (patch) | |
| tree | 38022d38f2b195c3285c41326b6011ba7431d31b /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | block: fix comment to use set_current_state (diff) | |
| download | wireguard-linux-697ba0b6ec4ae04afb67d3911799b5e2043b4455.tar.xz wireguard-linux-697ba0b6ec4ae04afb67d3911799b5e2043b4455.zip | |
block: fix integer overflow in BLKSECDISCARD
I independently rediscovered
commit 22d24a544b0d49bbcbd61c8c0eaf77d3c9297155
block: fix overflow in blk_ioctl_discard()
but for secure erase.
Same problem:
uint64_t r[2] = {512, 18446744073709551104ULL};
ioctl(fd, BLKSECDISCARD, r);
will enter near infinite loop inside blkdev_issue_secure_erase():
a.out: attempt to access beyond end of device
loop0: rw=5, sector=3399043073, nr_sectors = 1024 limit=2048
bio_check_eod: 3286214 callbacks suppressed
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Link: https://lore.kernel.org/r/9e64057f-650a-46d1-b9f7-34af391536ef@p183
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions