memory leak in kcm

Title	Replies (including bot)	Last reply
[PATCH net v2] kcm: Fix memory leak in error path of kcm_sendmsg()	3 (3)	2023/09/11 21:03
[PATCH net] kcm: Fix memory leak in error path of kcm_sendmsg()	3 (3)	2023/09/07 15:14
[syzbot] [net?] memory leak in kcm_sendmsg (2)	0 (1)	2023/07/26 16:19

Title

Replies (including bot)

Last reply

[PATCH net v2] kcm: Fix memory leak in error path of kcm_sendmsg()

3 (3)

2023/09/11 21:03

[PATCH net] kcm: Fix memory leak in error path of kcm_sendmsg()

3 (3)

2023/09/07 15:14

[syzbot] [net?] memory leak in kcm_sendmsg (2)

0 (1)

2023/07/26 16:19

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	memory leak in kcm_sendmsg net	C			2	1395d	1534d	20/26	fixed on 2021/11/10 00:50

upstream

memory leak in kcm_sendmsg net

1395d

1534d

20/26

fixed on 2021/11/10 00:50


Created	Duration	User	Patch	Repo	Result
2023/09/09 15:44	22m	syoshida@redhat.com	patch	upstream	OK log
2023/08/30 02:43	15m	retest repro		upstream	report log

Warning: Permanently added '10.128.0.5' (ED25519) to the list of known hosts. executing program executing program BUG: memory leak unreferenced object 0xffff88810b088c00 (size 240): comm "syz-executor186", pid 5012, jiffies 4294943306 (age 13.680s) hex dump (first 32 bytes): 00 89 08 0b 81 88 ff ff 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff83e5d5ff>] __alloc_skb+0x1ef/0x230 net/core/skbuff.c:634 [<ffffffff84606e59>] alloc_skb include/linux/skbuff.h:1289 [inline] [<ffffffff84606e59>] kcm_sendmsg+0x269/0x1050 net/kcm/kcmsock.c:815 [<ffffffff83e479c6>] sock_sendmsg_nosec net/socket.c:725 [inline] [<ffffffff83e479c6>] sock_sendmsg+0x56/0xb0 net/socket.c:748 [<ffffffff83e47f55>] ____sys_sendmsg+0x365/0x470 net/socket.c:2494 [<ffffffff83e4c389>] ___sys_sendmsg+0xc9/0x130 net/socket.c:2548 [<ffffffff83e4c536>] __sys_sendmsg+0xa6/0x120 net/socket.c:2577 [<ffffffff84ad7bb8>] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [<ffffffff84ad7bb8>] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 [<ffffffff84c0008b>] entry_SYSCALL_64_after_hwframe+0x63/0xcd BUG: memory leak unreferenced object 0xffff88810a2cc000 (size 640): comm "syz-executor186", pid 5012, jiffies 4294943306 (age 13.680s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff83e5a2d1>] kmalloc_reserve+0xe1/0x180 net/core/skbuff.c:559 [<ffffffff83e5d4e5>] __alloc_skb+0xd5/0x230 net/core/skbuff.c:644 [<ffffffff84606e59>] alloc_skb include/linux/skbuff.h:1289 [inline] [<ffffffff84606e59>] kcm_sendmsg+0x269/0x1050 net/kcm/kcmsock.c:815 [<ffffffff83e479c6>] sock_sendmsg_nosec net/socket.c:725 [inline] [<ffffffff83e479c6>] sock_sendmsg+0x56/0xb0 net/socket.c:748 [<ffffffff83e47f55>] ____sys_sendmsg+0x365/0x470 net/socket.c:2494 [<ffffffff83e4c389>] ___sys_sendmsg+0xc9/0x130 net/socket.c:2548 [<ffffffff83e4c536>] __sys_sendmsg+0xa6/0x120 net/socket.c:2577 [<ffffffff84ad7bb8>] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [<ffffffff84ad7bb8>] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 [<ffffffff84c0008b>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2023/07/26 07:06	upstream	18b44bc5a672	6756545c	.config	console log	report	syz	C		[disk image] [vmlinux] [kernel image]	ci-upstream-gce-leak	memory leak in kcm_sendmsg

Crashes (1):

Assets (help?)