linux/drivers/net/netdevsim
Eric Dumazet d10321be26 netdevsim: prevent bad user input in nsim_dev_health_break_write()
[ Upstream commit ee76746387 ]

If either a zero count or a large one is provided, kernel can crash.

Fixes: 82c93a87bf ("netdevsim: implement couple of testing devlink health reporters")
Reported-by: syzbot+ea40e4294e58b0292f74@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/netdev/675c6862.050a0220.37aaf.00b1.GAE@google.com/T/#u
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Joe Damato <jdamato@fastly.com>
Link: https://patch.msgid.link/20241213172518.2415666-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-12-27 13:52:54 +01:00
..
bpf.c netdevsim: Avoid allocation warnings triggered from user space 2022-07-29 14:57:26 -07:00
bus.c netdevsim: fix memory leak in nsim_bus_dev_new() 2022-10-27 10:47:09 -07:00
dev.c netdevsim: use cond_resched() in nsim_dev_trap_report_work() 2024-11-01 01:55:59 +01:00
ethtool.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-12-16 16:13:19 -08:00
fib.c netdevsim: Add trailing zero to terminate the string in nsim_nexthop_bucket_activity_write() 2024-11-08 16:26:41 +01:00
health.c netdevsim: prevent bad user input in nsim_dev_health_break_write() 2024-12-27 13:52:54 +01:00
hwstats.c netdevsim: Fix hwstats debugfs file permissions 2022-09-19 14:40:38 -07:00
ipsec.c netdevsim: copy addresses for both in and out paths 2024-12-14 19:53:28 +01:00
Makefile netdevsim: Introduce support for L3 offload xstats 2022-03-15 14:00:51 +01:00
netdev.c net: Use u64_stats_fetch_begin_irq() for stats fetch. 2022-08-29 13:02:27 +01:00
netdevsim.h netdevsim: convert driver to use unlocked devlink API during init/fini 2022-07-18 20:10:48 -07:00
psample.c netdevsim: Only use sampling truncation length when valid 2021-04-22 13:23:56 -07:00
udp_tunnels.c netdevsim: set .owner to THIS_MODULE 2020-11-17 14:08:59 -08:00