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| author | Leo Stone <leocstone@gmail.com> | 2024-12-17 10:26:57 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-02-17 10:04:49 +0100 |
| commit | 36b385d0f2b4c0bf41d491e19075ecd990d2bf94 (patch) | |
| tree | 34065d9764b247bd41c85783f355e57911fad3e5 /kernel/trace/ring_buffer.c | |
| parent | 52858d7fe6fbc804de1a48f7080fa50874d98f56 (diff) | |
safesetid: check size of policy writes
[ Upstream commit f09ff307c7299392f1c88f763299e24bc99811c7 ]
syzbot attempts to write a buffer with a large size to a sysfs entry
with writes handled by handle_policy_update(), triggering a warning
in kmalloc.
Check the size specified for write buffers before allocating.
Reported-by: syzbot+4eb7a741b3216020043a@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=4eb7a741b3216020043a
Signed-off-by: Leo Stone <leocstone@gmail.com>
[PM: subject tweak]
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'kernel/trace/ring_buffer.c')
0 files changed, 0 insertions, 0 deletions