Leo Stone f09ff307c7 safesetid: check size of policy writes ...

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>

2025-01-04 22:46:09 -05:00

..

Kconfig

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21 10:50:46 +02:00

lsm.c

lsm: mark the lsm_id variables are marked as static

2023-11-12 22:54:42 -05:00

lsm.h

LSM: SafeSetID: Mark safesetid_initialized as __initdata

2021-06-10 09:52:32 -07:00

Makefile

LSM: add SafeSetID module that gates setid calls

2019-01-25 11:22:45 -08:00

securityfs.c

safesetid: check size of policy writes

2025-01-04 22:46:09 -05:00