WARNING in tcp_recvmsg

Date	Name	Commit	Repro	Result
2024/04/04	upstream (ToT)	c85af715cac0	C	[report] WARNING in tcp_recvmsg_locked

Date

Name

Commit

Repro

Result

2024/04/04

upstream (ToT)

c85af715cac0

[report] WARNING in tcp_recvmsg_locked

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	WARNING in tcp_recvmsg_locked net				1	523d	523d	0/28	auto-obsoleted due to no activity on 2023/11/06 08:49
upstream	WARNING in tcp_recvmsg_locked (2) net	C	done		11	2d19h	381d	0/28	upstream: reported C repro on 2023/12/05 17:53

upstream

WARNING in tcp_recvmsg_locked net

523d

0/28

auto-obsoleted due to no activity on 2023/11/06 08:49

upstream

WARNING in tcp_recvmsg_locked (2) net

done

2d19h

381d

0/28

upstream: reported C repro on 2023/12/05 17:53


Created	Duration	User	Repo	Result
2024/07/25 04:45	2h20m	bisect fix	linux-6.1.y	error job log
2024/06/09 03:53	2h17m	bisect fix	linux-6.1.y	OK (0) job log log
2024/05/09 05:38	2h40m	bisect fix	linux-6.1.y	OK (0) job log log

------------[ cut here ]------------ TCP recvmsg seq # bug 2: copied 98ABF81A, seq 98ABF7E2, rcvnxt 98ABF7E3, fl 40 WARNING: CPU: 0 PID: 4874 at net/ipv4/tcp.c:2530 tcp_recvmsg_locked+0x5a0/0x1ce4 net/ipv4/tcp.c:2528 Modules linked in: CPU: 0 PID: 4874 Comm: syz-executor265 Not tainted 6.1.84-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : tcp_recvmsg_locked+0x5a0/0x1ce4 net/ipv4/tcp.c:2528 lr : tcp_recvmsg_locked+0x5a0/0x1ce4 net/ipv4/tcp.c:2528 sp : ffff80001e867220 x29: ffff80001e8673e0 x28: ffff0000c37420dc x27: ffff0000c3741a38 x26: ffff0000cf75f270 x25: ffff0000c3741a38 x24: 1fffe00019eebe53 x23: 0000000000000001 x22: 0000000098abf7e2 x21: 1fffe00019eebe54 x20: 0000000098abf81a x19: dfff800000000000 x18: 1fffe0003686b776 x17: ffff80001583d000 x16: ffff800008305ec4 x15: ffff0001b435bbbc x14: 1ffff00002b080b0 x13: dfff800000000000 x12: 0000000000000003 x11: 0000000000ff0100 x10: 0000000000000003 x9 : 472be0453f6b0400 x8 : 472be0453f6b0400 x7 : ffff80000827c8d4 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000006 x1 : ffff8000122ac6e0 x0 : ffff80019ebc9000 Call trace: tcp_recvmsg_locked+0x5a0/0x1ce4 net/ipv4/tcp.c:2528 receive_fallback_to_copy net/ipv4/tcp.c:2025 [inline] tcp_zerocopy_receive+0x6a8/0x1ce8 net/ipv4/tcp.c:2232 do_tcp_getsockopt+0x1b44/0x28d0 net/ipv4/tcp.c:4375 tcp_getsockopt+0x6c/0xe8 net/ipv4/tcp.c:4445 sock_common_getsockopt+0xa8/0xc4 net/core/sock.c:3651 __sys_getsockopt+0x1e8/0x484 net/socket.c:2327 __do_sys_getsockopt net/socket.c:2342 [inline] __se_sys_getsockopt net/socket.c:2339 [inline] __arm64_sys_getsockopt+0xb8/0xd4 net/socket.c:2339 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 1362 hardirqs last enabled at (1361): [<ffff80000827c974>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1366 [inline] hardirqs last enabled at (1361): [<ffff80000827c974>] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:5004 hardirqs last disabled at (1362): [<ffff800012151e8c>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1354): [<ffff800008020d7c>] softirq_handle_end kernel/softirq.c:414 [inline] softirqs last enabled at (1354): [<ffff800008020d7c>] __do_softirq+0xc1c/0xe38 kernel/softirq.c:600 softirqs last disabled at (1323): [<ffff80000802a99c>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ cleanup rbuf bug: copied 98ABF81A seq 98ABF7E3 rcvnxt 98ABF7E3 WARNING: CPU: 1 PID: 4874 at net/ipv4/tcp.c:1649 tcp_cleanup_rbuf net/ipv4/tcp.c:1647 [inline] WARNING: CPU: 1 PID: 4874 at net/ipv4/tcp.c:1649 tcp_recvmsg_locked+0x19bc/0x1ce4 net/ipv4/tcp.c:2670 Modules linked in: CPU: 1 PID: 4874 Comm: syz-executor265 Tainted: G W 6.1.84-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : tcp_cleanup_rbuf net/ipv4/tcp.c:1647 [inline] pc : tcp_recvmsg_locked+0x19bc/0x1ce4 net/ipv4/tcp.c:2670 lr : tcp_cleanup_rbuf net/ipv4/tcp.c:1647 [inline] lr : tcp_recvmsg_locked+0x19bc/0x1ce4 net/ipv4/tcp.c:2670 sp : ffff80001e867220 x29: ffff80001e8673e0 x28: ffff700003d0ce6c x27: ffff0000c3741a38 x26: ffff0000c3741880 x25: ffffffffffffffc9 x24: 0000000000000000 x23: 0000000000000001 x22: 0000000000000037 x21: 0000000098abf7e3 x20: 0000000098abf81a x19: dfff800000000000 x18: 0000000000000000 x17: 0000000000000000 x16: ffff800008305ec4 x15: 0000000000000000 x14: 1ffff00002b080b0 x13: dfff800000000000 x12: 0000000000000001 x11: 1fffe0001b213910 x10: 0000000000000000 x9 : 472be0453f6b0400 x8 : 472be0453f6b0400 x7 : ffff80000827c8d4 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff80000826a620 x2 : 0000000000000001 x1 : 0000000000000004 x0 : 0000000000000001 Call trace: tcp_cleanup_rbuf net/ipv4/tcp.c:1647 [inline] tcp_recvmsg_locked+0x19bc/0x1ce4 net/ipv4/tcp.c:2670 receive_fallback_to_copy net/ipv4/tcp.c:2025 [inline] tcp_zerocopy_receive+0x6a8/0x1ce8 net/ipv4/tcp.c:2232 do_tcp_getsockopt+0x1b44/0x28d0 net/ipv4/tcp.c:4375 tcp_getsockopt+0x6c/0xe8 net/ipv4/tcp.c:4445 sock_common_getsockopt+0xa8/0xc4 net/core/sock.c:3651 __sys_getsockopt+0x1e8/0x484 net/socket.c:2327 __do_sys_getsockopt net/socket.c:2342 [inline] __se_sys_getsockopt net/socket.c:2339 [inline] __arm64_sys_getsockopt+0xb8/0xd4 net/socket.c:2339 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 1630 hardirqs last enabled at (1629): [<ffff80000827c974>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1366 [inline] hardirqs last enabled at (1629): [<ffff80000827c974>] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:5004 hardirqs last disabled at (1630): [<ffff800012151e8c>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1600): [<ffff800008020d7c>] softirq_handle_end kernel/softirq.c:414 [inline] softirqs last enabled at (1600): [<ffff800008020d7c>] __do_softirq+0xc1c/0xe38 kernel/softirq.c:600 softirqs last disabled at (1365): [<ffff80000802a99c>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80 ---[ end trace 0000000000000000 ]---

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2024/04/04 07:11	linux-6.1.y	347385861c50	51c4dcff	.config	console log	report	syz	C		[disk image] [vmlinux] [kernel image]	ci2-linux-6-1-kasan-arm64	WARNING in tcp_recvmsg_locked

Crashes (1):

Assets (help?)