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mirror of synced 2025-03-06 20:59:54 +01:00
linux/security/safesetid
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