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| author | Wenjie Qi <qwjhust@gmail.com> | 2026-06-30 11:17:00 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2026-08-03 23:40:24 +0000 |
| commit | e533889fc26aea0cd83c90327063f272061dd820 (patch) | |
| tree | 56fde433c689bacbfe35dcb88d183989437325e2 /tools/perf/scripts/python/bin/stackcollapse-report | |
| parent | a54ffce4637acb0db8e695188a6c7f99f14c3576 (diff) | |
f2fs: validate MOVE_RANGE destination size
F2FS_IOC_MOVE_RANGE checks the source range, but not the destination end
before updating i_size. A source hole can expose this: __clone_blkaddrs()
skips NULL_ADDR entries and returns success, so the caller can still extend
the destination inode with unchecked pos_out + len.
Reject destination overflow and use inode_newsize_ok() before extending
the destination inode.
Fixes: 4dd6f977fc77 ("f2fs: support an ioctl to move a range of data blocks")
Cc: stable@kernel.org
Assisted-by: Codex:gpt-5.5
Signed-off-by: Wenjie Qi <qiwenjie@xiaomi.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-report')
0 files changed, 0 insertions, 0 deletions