IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7244 at net/kcm/kcmsock.c:629 kcm_write_msgs.cold.34+0x5f/0x13e net/kcm/kcmsock.c:629 Modules linked in: CPU: 1 PID: 7244 Comm: syz-executor.5 Not tainted 4.19.197-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kcm_write_msgs.cold.34+0x5f/0x13e net/kcm/kcmsock.c:629 Code: c7 c7 00 c2 d0 87 4c 89 5d d0 e8 63 31 ec ff 0f 0b 4c 8b 5d d0 e9 76 c1 5f ff 48 c7 c7 00 c2 d0 87 4c 89 5d d0 e8 48 31 ec ff <0f> 0b 8b 85 7c ff ff ff ba ea ff ff ff 4c 8b 5d d0 89 45 c4 e9 d0 RSP: 0018:ffff8881dad678f8 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881d7606b80 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8767b160 RDI: ffffffff8a1879a0 RBP: ffff8881dad679b8 R08: ffffed103ed25079 R09: ffffed103ed25078 R10: ffffed103ed25078 R11: ffff8881f69283c7 R12: 00000000000000c0 R13: ffff8881da81b940 R14: ffff8881d8781380 R15: ffff8881d7606ac0 FS: 00007fd64ab88700(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000202bf000 CR3: 00000001d8806004 CR4: 00000000001606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kcm_sendmsg+0x1897/0x25b0 net/kcm/kcmsock.c:1035 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xb5/0xf0 net/socket.c:661 sock_write_iter+0x215/0x420 net/socket.c:966 call_write_iter include/linux/fs.h:1821 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x443/0x890 fs/read_write.c:487 vfs_write+0x150/0x4d0 fs/read_write.c:549 ksys_write+0x103/0x260 fs/read_write.c:599 __do_sys_write fs/read_write.c:611 [inline] __se_sys_write fs/read_write.c:608 [inline] __x64_sys_write+0x6e/0xb0 fs/read_write.c:608 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4641a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fd64ab88198 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000c4c RCX: 00000000004641a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000053bf00 R13: 00007fd64ab886bc R14: 00000000ffffffff R15: 0000000000000003 irq event stamp: 5666 hardirqs last enabled at (5665): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (5665): [] _raw_spin_unlock_irq+0x27/0x80 kernel/locking/spinlock.c:192 hardirqs last disabled at (5666): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (5640): [] spin_unlock_bh include/linux/spinlock.h:374 [inline] softirqs last enabled at (5640): [] release_sock+0x11f/0x180 net/core/sock.c:2892 softirqs last disabled at (5638): [] spin_lock_bh include/linux/spinlock.h:334 [inline] softirqs last disabled at (5638): [] release_sock+0x1b/0x180 net/core/sock.c:2879 ---[ end trace 5a4a323c5c064b16 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7254 at net/kcm/kcmsock.c:629 kcm_write_msgs.cold.34+0x5f/0x13e net/kcm/kcmsock.c:629 Modules linked in: CPU: 1 PID: 7254 Comm: syz-executor.3 Tainted: G W 4.19.197-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kcm_write_msgs.cold.34+0x5f/0x13e net/kcm/kcmsock.c:629 Code: c7 c7 00 c2 d0 87 4c 89 5d d0 e8 63 31 ec ff 0f 0b 4c 8b 5d d0 e9 76 c1 5f ff 48 c7 c7 00 c2 d0 87 4c 89 5d d0 e8 48 31 ec ff <0f> 0b 8b 85 7c ff ff ff ba ea ff ff ff 4c 8b 5d d0 89 45 c4 e9 d0 RSP: 0018:ffff8881d74a78f8 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881da84fac0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8767b160 RDI: ffffffff8a1879a0 RBP: ffff8881d74a79b8 R08: ffffed103ed25079 R09: ffffed103ed25078 R10: ffffed103ed25078 R11: ffff8881f69283c7 R12: 00000000000000c0 R13: ffff8881da81b340 R14: ffff8881d81f08c0 R15: ffff8881da84fa00 FS: 00007f2e40e9e700(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000100 CR3: 00000001d8d8d003 CR4: 00000000001606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kcm_sendmsg+0x1897/0x25b0 net/kcm/kcmsock.c:1035 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xb5/0xf0 net/socket.c:661 sock_write_iter+0x215/0x420 net/socket.c:966 call_write_iter include/linux/fs.h:1821 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x443/0x890 fs/read_write.c:487 vfs_write+0x150/0x4d0 fs/read_write.c:549 ksys_write+0x103/0x260 fs/read_write.c:599 __do_sys_write fs/read_write.c:611 [inline] __se_sys_write fs/read_write.c:608 [inline] __x64_sys_write+0x6e/0xb0 fs/read_write.c:608 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4641a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f2e40e9e198 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000c4c RCX: 00000000004641a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000053bf00 R13: 00007f2e40e9e6bc R14: 00000000ffffffff R15: 0000000000000003 irq event stamp: 6262 hardirqs last enabled at (6261): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (6261): [] _raw_spin_unlock_irq+0x27/0x80 kernel/locking/spinlock.c:192 hardirqs last disabled at (6262): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (6248): [] spin_unlock_bh include/linux/spinlock.h:374 [inline] softirqs last enabled at (6248): [] release_sock+0x11f/0x180 net/core/sock.c:2892 softirqs last disabled at (6244): [] spin_lock_bh include/linux/spinlock.h:334 [inline] softirqs last disabled at (6244): [] release_sock+0x1b/0x180 net/core/sock.c:2879 ---[ end trace 5a4a323c5c064b17 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7277 at net/kcm/kcmsock.c:629 kcm_write_msgs.cold.34+0x5f/0x13e net/kcm/kcmsock.c:629 Modules linked in: CPU: 0 PID: 7277 Comm: syz-executor.4 Tainted: G W 4.19.197-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kcm_write_msgs.cold.34+0x5f/0x13e net/kcm/kcmsock.c:629 Code: c7 c7 00 c2 d0 87 4c 89 5d d0 e8 63 31 ec ff 0f 0b 4c 8b 5d d0 e9 76 c1 5f ff 48 c7 c7 00 c2 d0 87 4c 89 5d d0 e8 48 31 ec ff <0f> 0b 8b 85 7c ff ff ff ba ea ff ff ff 4c 8b 5d d0 89 45 c4 e9 d0 RSP: 0018:ffff8881da0278f8 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881cdb83ac0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8767b160 RDI: ffffffff8a1879a0 RBP: ffff8881da0279b8 R08: ffffed103ed05079 R09: ffffed103ed05078 R10: ffffed103ed05078 R11: ffff8881f68283c7 R12: 00000000000000c0 R13: ffff8881d6d033c0 R14: ffff8881d87810c0 R15: ffff8881cdb83a00 FS: 00007fe115c33700(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020229040 CR3: 00000001d72b4002 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kcm_sendmsg+0x1897/0x25b0 net/kcm/kcmsock.c:1035 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xb5/0xf0 net/socket.c:661 sock_write_iter+0x215/0x420 net/socket.c:966 call_write_iter include/linux/fs.h:1821 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x443/0x890 fs/read_write.c:487 vfs_write+0x150/0x4d0 fs/read_write.c:549 ksys_write+0x103/0x260 fs/read_write.c:599 __do_sys_write fs/read_write.c:611 [inline] __se_sys_write fs/read_write.c:608 [inline] __x64_sys_write+0x6e/0xb0 fs/read_write.c:608 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4641a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fe115c33198 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000c4c RCX: 00000000004641a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000053bfa0 R13: 00007fe115c336bc R14: 00000000ffffffff R15: 0000000000000003 irq event stamp: 4106 hardirqs last enabled at (4105): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (4105): [] _raw_spin_unlock_irq+0x27/0x80 kernel/locking/spinlock.c:192 hardirqs last disabled at (4106): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (4090): [] spin_unlock_bh include/linux/spinlock.h:374 [inline] softirqs last enabled at (4090): [] release_sock+0x11f/0x180 net/core/sock.c:2892 softirqs last disabled at (4088): [] spin_lock_bh include/linux/spinlock.h:334 [inline] softirqs last disabled at (4088): [] release_sock+0x1b/0x180 net/core/sock.c:2879 ---[ end trace 5a4a323c5c064b18 ]--- KCM: Hard failure on kcm_write_msgs KCM: Hard failure on kcm_write_msgs ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7283 at net/kcm/kcmsock.c:629 kcm_write_msgs.cold.34+0x5f/0x13e net/kcm/kcmsock.c:629 Modules linked in: CPU: 0 PID: 7283 Comm: syz-executor.2 Tainted: G W 4.19.197-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kcm_write_msgs.cold.34+0x5f/0x13e net/kcm/kcmsock.c:629 Code: c7 c7 00 c2 d0 87 4c 89 5d d0 e8 63 31 ec ff 0f 0b 4c 8b 5d d0 e9 76 c1 5f ff 48 c7 c7 00 c2 d0 87 4c 89 5d d0 e8 48 31 ec ff <0f> 0b 8b 85 7c ff ff ff ba ea ff ff ff 4c 8b 5d d0 89 45 c4 e9 d0 RSP: 0018:ffff8881d58e78f8 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881d7e72d40 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8767b160 RDI: ffffffff8a1879a0 RBP: ffff8881d58e79b8 R08: ffffed103ed05079 R09: ffffed103ed05078 R10: ffffed103ed05078 R11: ffff8881f68283c7 R12: 00000000000000c0 R13: ffff8881d6d02dc0 R14: ffff8881d8780e00 R15: ffff8881d7e72c80 FS: 00007f4060f4f700(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000202bf002 CR3: 00000001cdba5002 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kcm_sendmsg+0x1897/0x25b0 net/kcm/kcmsock.c:1035 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xb5/0xf0 net/socket.c:661 sock_write_iter+0x215/0x420 net/socket.c:966 call_write_iter include/linux/fs.h:1821 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x443/0x890 fs/read_write.c:487 vfs_write+0x150/0x4d0 fs/read_write.c:549 ksys_write+0x103/0x260 fs/read_write.c:599 __do_sys_write fs/read_write.c:611 [inline] __se_sys_write fs/read_write.c:608 [inline] __x64_sys_write+0x6e/0xb0 fs/read_write.c:608 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4641a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4060f4f198 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000c4c RCX: 00000000004641a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000053bf00 R13: 00007f4060f4f6bc R14: 00000000ffffffff R15: 0000000000000003 irq event stamp: 10528 hardirqs last enabled at (10527): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (10527): [] _raw_spin_unlock_irq+0x27/0x80 kernel/locking/spinlock.c:192 hardirqs last disabled at (10528): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (10512): [] spin_unlock_bh include/linux/spinlock.h:374 [inline] softirqs last enabled at (10512): [] release_sock+0x11f/0x180 net/core/sock.c:2892 softirqs last disabled at (10510): [] spin_lock_bh include/linux/spinlock.h:334 [inline] softirqs last disabled at (10510): [] release_sock+0x1b/0x180 net/core/sock.c:2879 ---[ end trace 5a4a323c5c064b19 ]--- KCM: Hard failure on kcm_write_msgs KCM: Hard failure on kcm_write_msgs ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7359 at net/kcm/kcmsock.c:629 kcm_write_msgs.cold.34+0x5f/0x13e net/kcm/kcmsock.c:629 Modules linked in: CPU: 1 PID: 7359 Comm: syz-executor.5 Tainted: G W 4.19.197-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kcm_write_msgs.cold.34+0x5f/0x13e net/kcm/kcmsock.c:629 Code: c7 c7 00 c2 d0 87 4c 89 5d d0 e8 63 31 ec ff 0f 0b 4c 8b 5d d0 e9 76 c1 5f ff 48 c7 c7 00 c2 d0 87 4c 89 5d d0 e8 48 31 ec ff <0f> 0b 8b 85 7c ff ff ff ba ea ff ff ff 4c 8b 5d d0 89 45 c4 e9 d0 RSP: 0018:ffff8881d45cf8f8 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881d7e1a600 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8767b160 RDI: ffffffff8a1879a0 RBP: ffff8881d45cf9b8 R08: ffffed103ed25079 R09: ffffed103ed25078 R10: ffffed103ed25078 R11: ffff8881f69283c7 R12: 00000000000000c0 R13: ffff8881f4c81900 R14: ffff8881d4ab3980 R15: ffff8881d7e1a540 FS: 00007fd64ab67700(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000940004 CR3: 00000001d4662006 CR4: 00000000001606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kcm_sendmsg+0x1897/0x25b0 net/kcm/kcmsock.c:1035 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xb5/0xf0 net/socket.c:661 sock_write_iter+0x215/0x420 net/socket.c:966 call_write_iter include/linux/fs.h:1821 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x443/0x890 fs/read_write.c:487 vfs_write+0x150/0x4d0 fs/read_write.c:549 ksys_write+0x103/0x260 fs/read_write.c:599 __do_sys_write fs/read_write.c:611 [inline] __se_sys_write fs/read_write.c:608 [inline] __x64_sys_write+0x6e/0xb0 fs/read_write.c:608 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4641a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fd64ab67198 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000c4c RCX: 00000000004641a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000053bfa0 R13: 00007fd64ab676bc R14: 00000000ffffffff R15: 0000000000000003 irq event stamp: 3424 hardirqs last enabled at (3423): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (3423): [] _raw_spin_unlock_irq+0x27/0x80 kernel/locking/spinlock.c:192 hardirqs last disabled at (3424): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (3408): [] spin_unlock_bh include/linux/spinlock.h:374 [inline] softirqs last enabled at (3408): [] release_sock+0x11f/0x180 net/core/sock.c:2892 softirqs last disabled at (3406): [] spin_lock_bh include/linux/spinlock.h:334 [inline] softirqs last disabled at (3406): [] release_sock+0x1b/0x180 net/core/sock.c:2879 ---[ end trace 5a4a323c5c064b1a ]--- KCM: Hard failure on kcm_write_msgs ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7416 at net/kcm/kcmsock.c:629 kcm_write_msgs.cold.34+0x5f/0x13e net/kcm/kcmsock.c:629 Modules linked in: CPU: 0 PID: 7416 Comm: syz-executor.4 Tainted: G W 4.19.197-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kcm_write_msgs.cold.34+0x5f/0x13e net/kcm/kcmsock.c:629 Code: c7 c7 00 c2 d0 87 4c 89 5d d0 e8 63 31 ec ff 0f 0b 4c 8b 5d d0 e9 76 c1 5f ff 48 c7 c7 00 c2 d0 87 4c 89 5d d0 e8 48 31 ec ff <0f> 0b 8b 85 7c ff ff ff ba ea ff ff ff 4c 8b 5d d0 89 45 c4 e9 d0 RSP: 0018:ffff8881d513f8f8 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881d9474340 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8767b160 RDI: ffffffff8a1879a0 RBP: ffff8881d513f9b8 R08: ffffed103ed05079 R09: ffffed103ed05078 R10: ffffed103ed05078 R11: ffff8881f68283c7 R12: 00000000000000c0 R13: ffff8881f3bc5200 R14: ffff8881d4ab2900 R15: ffff8881d9474280 FS: 00007fe115c33700(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000202ae040 CR3: 00000001ee386006 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kcm_sendmsg+0x1897/0x25b0 net/kcm/kcmsock.c:1035 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xb5/0xf0 net/socket.c:661 sock_write_iter+0x215/0x420 net/socket.c:966 call_write_iter include/linux/fs.h:1821 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x443/0x890 fs/read_write.c:487 vfs_write+0x150/0x4d0 fs/read_write.c:549 ksys_write+0x103/0x260 fs/read_write.c:599 __do_sys_write fs/read_write.c:611 [inline] __se_sys_write fs/read_write.c:608 [inline] __x64_sys_write+0x6e/0xb0 fs/read_write.c:608 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4641a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fe115c33198 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000c4c RCX: 00000000004641a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000053bfa0 R13: 00007fe115c336bc R14: 00000000ffffffff R15: 0000000000000003 irq event stamp: 3474 hardirqs last enabled at (3473): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (3473): [] _raw_spin_unlock_irq+0x27/0x80 kernel/locking/spinlock.c:192 hardirqs last disabled at (3474): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (3468): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318 softirqs last disabled at (3435): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (3435): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 ---[ end trace 5a4a323c5c064b1b ]--- KCM: Hard failure on kcm_write_msgs ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7487 at net/kcm/kcmsock.c:629 kcm_write_msgs.cold.34+0x5f/0x13e net/kcm/kcmsock.c:629 Modules linked in: CPU: 0 PID: 7487 Comm: syz-executor.5 Tainted: G W 4.19.197-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kcm_write_msgs.cold.34+0x5f/0x13e net/kcm/kcmsock.c:629 Code: c7 c7 00 c2 d0 87 4c 89 5d d0 e8 63 31 ec ff 0f 0b 4c 8b 5d d0 e9 76 c1 5f ff 48 c7 c7 00 c2 d0 87 4c 89 5d d0 e8 48 31 ec ff <0f> 0b 8b 85 7c ff ff ff ba ea ff ff ff 4c 8b 5d d0 89 45 c4 e9 d0 RSP: 0018:ffff8881da3278f8 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881e5595ac0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8767b160 RDI: ffffffff8a1879a0 RBP: ffff8881da3279b8 R08: ffffed103ed05079 R09: ffffed103ed05078 R10: ffffed103ed05078 R11: ffff8881f68283c7 R12: 00000000000000c0 R13: ffff8881f2f419c0 R14: ffff8881db989d00 R15: ffff8881e5595a00 FS: 00007fd64ab88700(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffdcabc7c68 CR3: 00000001f0e8d004 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kcm_sendmsg+0x1897/0x25b0 net/kcm/kcmsock.c:1035 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xb5/0xf0 net/socket.c:661 sock_write_iter+0x215/0x420 net/socket.c:966 call_write_iter include/linux/fs.h:1821 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x443/0x890 fs/read_write.c:487 vfs_write+0x150/0x4d0 fs/read_write.c:549 ksys_write+0x103/0x260 fs/read_write.c:599 __do_sys_write fs/read_write.c:611 [inline] __se_sys_write fs/read_write.c:608 [inline] __x64_sys_write+0x6e/0xb0 fs/read_write.c:608 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4641a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fd64ab88198 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000c4c RCX: 00000000004641a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000053bf00 R13: 00007fd64ab886bc R14: 00000000ffffffff R15: 0000000000000003 irq event stamp: 6126 hardirqs last enabled at (6125): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (6125): [] _raw_spin_unlock_irq+0x27/0x80 kernel/locking/spinlock.c:192 hardirqs last disabled at (6126): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (6110): [] spin_unlock_bh include/linux/spinlock.h:374 [inline] softirqs last enabled at (6110): [] release_sock+0x11f/0x180 net/core/sock.c:2892 softirqs last disabled at (6108): [] spin_lock_bh include/linux/spinlock.h:334 [inline] softirqs last disabled at (6108): [] release_sock+0x1b/0x180 net/core/sock.c:2879 ---[ end trace 5a4a323c5c064b1c ]--- KCM: Hard failure on kcm_write_msgs ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7583 at net/kcm/kcmsock.c:629 kcm_write_msgs.cold.34+0x5f/0x13e net/kcm/kcmsock.c:629 Modules linked in: CPU: 0 PID: 7583 Comm: syz-executor.1 Tainted: G W 4.19.197-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ------------[ cut here ]------------ RIP: 0010:kcm_write_msgs.cold.34+0x5f/0x13e net/kcm/kcmsock.c:629 Code: c7 c7 00 c2 d0 87 4c 89 5d d0 e8 63 31 ec ff 0f 0b 4c 8b 5d d0 e9 76 c1 5f ff 48 c7 c7 00 c2 d0 87 4c 89 5d d0 e8 48 31 ec ff <0f> 0b 8b 85 7c ff ff ff ba ea ff ff ff 4c 8b 5d d0 89 45 c4 e9 d0 RSP: 0018:ffff8881e995f8f8 EFLAGS: 00010282 WARNING: CPU: 1 PID: 7596 at net/kcm/kcmsock.c:629 kcm_write_msgs.cold.34+0x5f/0x13e net/kcm/kcmsock.c:629 RAX: 0000000000000024 RBX: ffff8881e9edfb80 RCX: 0000000000000000 Modules linked in: RDX: 0000000000000000 RSI: ffffffff8767b160 RDI: ffffffff8a1879a0 RBP: ffff8881e995f9b8 R08: ffffed103ed05079 R09: ffffed103ed05078 CPU: 1 PID: 7596 Comm: syz-executor.0 Tainted: G W 4.19.197-syzkaller #0 R10: ffffed103ed05078 R11: ffff8881f68283c7 R12: 00000000000000c0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 R13: ffff8881e9993840 R14: ffff8881d85afbc0 R15: ffff8881e9edfac0 FS: 00007fba084cf700(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 RIP: 0010:kcm_write_msgs.cold.34+0x5f/0x13e net/kcm/kcmsock.c:629 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002011f040 CR3: 00000001d9ba2004 CR4: 00000000001606f0 Code: c7 c7 00 c2 d0 87 4c 89 5d d0 e8 63 31 ec ff 0f 0b 4c 8b 5d d0 e9 76 c1 5f ff 48 c7 c7 00 c2 d0 87 4c 89 5d d0 e8 48 31 ec ff <0f> 0b 8b 85 7c ff ff ff ba ea ff ff ff 4c 8b 5d d0 89 45 c4 e9 d0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 RSP: 0018:ffff8881d196f8f8 EFLAGS: 00010282 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: RAX: 0000000000000024 RBX: ffff8881e79665c0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8767b160 RDI: ffffffff8a1879a0 RBP: ffff8881d196f9b8 R08: ffffed103ed25079 R09: ffffed103ed25078 R10: ffffed103ed25078 R11: ffff8881f69283c7 R12: 00000000000000c0 kcm_sendmsg+0x1897/0x25b0 net/kcm/kcmsock.c:1035 R13: ffff8881ea248740 R14: ffff8881e9983340 R15: ffff8881e7966500 FS: 00007fd987db4700(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020400000 CR3: 00000001db84f006 CR4: 00000000001606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kcm_sendmsg+0x1897/0x25b0 net/kcm/kcmsock.c:1035 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xb5/0xf0 net/socket.c:661 sock_write_iter+0x215/0x420 net/socket.c:966 call_write_iter include/linux/fs.h:1821 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x443/0x890 fs/read_write.c:487 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xb5/0xf0 net/socket.c:661 sock_write_iter+0x215/0x420 net/socket.c:966 vfs_write+0x150/0x4d0 fs/read_write.c:549 ksys_write+0x103/0x260 fs/read_write.c:599 call_write_iter include/linux/fs.h:1821 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x443/0x890 fs/read_write.c:487 __do_sys_write fs/read_write.c:611 [inline] __se_sys_write fs/read_write.c:608 [inline] __x64_sys_write+0x6e/0xb0 fs/read_write.c:608 vfs_write+0x150/0x4d0 fs/read_write.c:549 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 ksys_write+0x103/0x260 fs/read_write.c:599 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4641a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fba084cf198 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 __do_sys_write fs/read_write.c:611 [inline] __se_sys_write fs/read_write.c:608 [inline] __x64_sys_write+0x6e/0xb0 fs/read_write.c:608 RAX: ffffffffffffffda RBX: 0000000000000c4c RCX: 00000000004641a9 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 entry_SYSCALL_64_after_hwframe+0x49/0xbe RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 RIP: 0033:0x4641a9 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000053bf00 R13: 00007fba084cf6bc R14: 00000000ffffffff R15: 0000000000000003 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 irq event stamp: 6104 RSP: 002b:00007fd987db4198 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 hardirqs last enabled at (6103): [] __free_pages_ok+0x630/0xd80 mm/page_alloc.c:1286 RAX: ffffffffffffffda RBX: 0000000000000c4c RCX: 00000000004641a9 hardirqs last disabled at (6104): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (6078): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 softirqs last disabled at (6009): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (6009): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000053bf00 ---[ end trace 5a4a323c5c064b1d ]--- R13: 00007fd987db46bc R14: 00000000ffffffff R15: 0000000000000003 irq event stamp: 8012 hardirqs last enabled at (8011): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (8011): [] _raw_spin_unlock_irq+0x27/0x80 kernel/locking/spinlock.c:192 hardirqs last disabled at (8012): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (8008): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318 softirqs last disabled at (7995): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (7995): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 ---[ end trace 5a4a323c5c064b1e ]--- KCM: Hard failure on kcm_write_msgs KCM: Hard failure on kcm_write_msgs ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7695 at net/kcm/kcmsock.c:629 kcm_write_msgs.cold.34+0x5f/0x13e net/kcm/kcmsock.c:629 Modules linked in: CPU: 1 PID: 7695 Comm: syz-executor.5 Tainted: G W 4.19.197-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kcm_write_msgs.cold.34+0x5f/0x13e net/kcm/kcmsock.c:629 Code: c7 c7 00 c2 d0 87 4c 89 5d d0 e8 63 31 ec ff 0f 0b 4c 8b 5d d0 e9 76 c1 5f ff 48 c7 c7 00 c2 d0 87 4c 89 5d d0 e8 48 31 ec ff <0f> 0b 8b 85 7c ff ff ff ba ea ff ff ff 4c 8b 5d d0 89 45 c4 e9 d0 RSP: 0018:ffff8881dd7f78f8 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881e7c7aac0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8767b160 RDI: ffffffff8a1879a0 RBP: ffff8881dd7f79b8 R08: ffffed103ed25079 R09: ffffed103ed25078 R10: ffffed103ed25078 R11: ffff8881f69283c7 R12: 00000000000000c0 R13: ffff8881e5dd5800 R14: ffff8881e1067680 R15: ffff8881e7c7aa00 FS: 00007fd64ab88700(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000380 CR3: 00000001e7f43005 CR4: 00000000001606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kcm_sendmsg+0x1897/0x25b0 net/kcm/kcmsock.c:1035 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xb5/0xf0 net/socket.c:661 sock_write_iter+0x215/0x420 net/socket.c:966 call_write_iter include/linux/fs.h:1821 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x443/0x890 fs/read_write.c:487 vfs_write+0x150/0x4d0 fs/read_write.c:549 ksys_write+0x103/0x260 fs/read_write.c:599 __do_sys_write fs/read_write.c:611 [inline] __se_sys_write fs/read_write.c:608 [inline] __x64_sys_write+0x6e/0xb0 fs/read_write.c:608 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4641a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fd64ab88198 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000c4c RCX: 00000000004641a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000053bf00 R13: 00007fd64ab886bc R14: 00000000ffffffff R15: 0000000000000003 irq event stamp: 8998 hardirqs last enabled at (8997): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (8997): [] _raw_spin_unlock_irq+0x27/0x80 kernel/locking/spinlock.c:192 hardirqs last disabled at (8998): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (8992): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318 softirqs last disabled at (8923): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (8923): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 ---[ end trace 5a4a323c5c064b1f ]--- KCM: Hard failure on kcm_write_msgs ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7752 at net/kcm/kcmsock.c:629 kcm_write_msgs.cold.34+0x5f/0x13e net/kcm/kcmsock.c:629 Modules linked in: CPU: 1 PID: 7752 Comm: syz-executor.1 Tainted: G W 4.19.197-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kcm_write_msgs.cold.34+0x5f/0x13e net/kcm/kcmsock.c:629 Code: c7 c7 00 c2 d0 87 4c 89 5d d0 e8 63 31 ec ff 0f 0b 4c 8b 5d d0 e9 76 c1 5f ff 48 c7 c7 00 c2 d0 87 4c 89 5d d0 e8 48 31 ec ff <0f> 0b 8b 85 7c ff ff ff ba ea ff ff ff 4c 8b 5d d0 89 45 c4 e9 d0 RSP: 0018:ffff8881c7b1f8f8 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881dbb67140 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8767b160 RDI: ffffffff8a1879a0 RBP: ffff8881c7b1f9b8 R08: ffffed103ed25079 R09: ffffed103ed25078 R10: ffffed103ed25078 R11: ffff8881f69283c7 R12: 00000000000000c0 R13: ffff8881e1fa7300 R14: ffff8881e1066b80 R15: ffff8881dbb67080 FS: 00007fba084cf700(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000940004 CR3: 00000001e70b1002 CR4: 00000000001606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kcm_sendmsg+0x1897/0x25b0 net/kcm/kcmsock.c:1035 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xb5/0xf0 net/socket.c:661 sock_write_iter+0x215/0x420 net/socket.c:966 call_write_iter include/linux/fs.h:1821 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x443/0x890 fs/read_write.c:487 vfs_write+0x150/0x4d0 fs/read_write.c:549 ksys_write+0x103/0x260 fs/read_write.c:599 __do_sys_write fs/read_write.c:611 [inline] __se_sys_write fs/read_write.c:608 [inline] __x64_sys_write+0x6e/0xb0 fs/read_write.c:608 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4641a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fba084cf198 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000c4c RCX: 00000000004641a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000053bf00 R13: 00007fba084cf6bc R14: 00000000ffffffff R15: 0000000000000003 irq event stamp: 5880 hardirqs last enabled at (5879): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (5879): [] _raw_spin_unlock_irq+0x27/0x80 kernel/locking/spinlock.c:192 hardirqs last disabled at (5880): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (5874): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318 softirqs last disabled at (5793): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (5793): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 ---[ end trace 5a4a323c5c064b20 ]--- KCM: Hard failure on kcm_write_msgs ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7799 at net/kcm/kcmsock.c:629 kcm_write_msgs.cold.34+0x5f/0x13e net/kcm/kcmsock.c:629 Modules linked in: CPU: 1 PID: 7799 Comm: syz-executor.2 Tainted: G W 4.19.197-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kcm_write_msgs.cold.34+0x5f/0x13e net/kcm/kcmsock.c:629 Code: c7 c7 00 c2 d0 87 4c 89 5d d0 e8 63 31 ec ff 0f 0b 4c 8b 5d d0 e9 76 c1 5f ff 48 c7 c7 00 c2 d0 87 4c 89 5d d0 e8 48 31 ec ff <0f> 0b 8b 85 7c ff ff ff ba ea ff ff ff 4c 8b 5d d0 89 45 c4 e9 d0 RSP: 0018:ffff8881d2e5f8f8 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881ca7b03c0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8767b160 RDI: ffffffff8a1879a0 RBP: ffff8881d2e5f9b8 R08: ffffed103ed25079 R09: ffffed103ed25078 R10: ffffed103ed25078 R11: ffff8881f69283c7 R12: 00000000000000c0 R13: ffff8881e7e83840 R14: ffff8881e1066080 R15: ffff8881ca7b0300 FS: 00007f4060f4f700(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000380 CR3: 00000001e567b003 CR4: 00000000001606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kcm_sendmsg+0x1897/0x25b0 net/kcm/kcmsock.c:1035 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xb5/0xf0 net/socket.c:661 sock_write_iter+0x215/0x420 net/socket.c:966 call_write_iter include/linux/fs.h:1821 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x443/0x890 fs/read_write.c:487 vfs_write+0x150/0x4d0 fs/read_write.c:549 ksys_write+0x103/0x260 fs/read_write.c:599 __do_sys_write fs/read_write.c:611 [inline] __se_sys_write fs/read_write.c:608 [inline] __x64_sys_write+0x6e/0xb0 fs/read_write.c:608 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4641a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4060f4f198 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000c4c RCX: 00000000004641a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000053bf00 R13: 00007f4060f4f6bc R14: 00000000ffffffff R15: 0000000000000003 irq event stamp: 8070 hardirqs last enabled at (8069): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (8069): [] _raw_spin_unlock_irq+0x27/0x80 kernel/locking/spinlock.c:192 hardirqs last disabled at (8070): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (8056): [] spin_unlock_bh include/linux/spinlock.h:374 [inline] softirqs last enabled at (8056): [] release_sock+0x11f/0x180 net/core/sock.c:2892 softirqs last disabled at (8054): [] spin_lock_bh include/linux/spinlock.h:334 [inline] softirqs last disabled at (8054): [] release_sock+0x1b/0x180 net/core/sock.c:2879 ---[ end trace 5a4a323c5c064b21 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7824 at net/kcm/kcmsock.c:629 kcm_write_msgs.cold.34+0x5f/0x13e net/kcm/kcmsock.c:629 Modules linked in: CPU: 0 PID: 7824 Comm: syz-executor.0 Tainted: G W 4.19.197-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kcm_write_msgs.cold.34+0x5f/0x13e net/kcm/kcmsock.c:629 Code: c7 c7 00 c2 d0 87 4c 89 5d d0 e8 63 31 ec ff 0f 0b 4c 8b 5d d0 e9 76 c1 5f ff 48 c7 c7 00 c2 d0 87 4c 89 5d d0 e8 48 31 ec ff <0f> 0b 8b 85 7c ff ff ff ba ea ff ff ff 4c 8b 5d d0 89 45 c4 e9 d0 RSP: 0018:ffff8881c7a8f8f8 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881debc3e00 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8767b160 RDI: ffffffff8a1879a0 RBP: ffff8881c7a8f9b8 R08: ffffed103ed05079 R09: ffffed103ed05078 R10: ffffed103ed05078 R11: ffff8881f68283c7 R12: 00000000000000c0 R13: ffff8881dff4f880 R14: ffff8881dfedb180 R15: ffff8881debc3d40 FS: 00007fd987db4700(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000380 CR3: 00000001e0dd0004 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kcm_sendmsg+0x1897/0x25b0 net/kcm/kcmsock.c:1035 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xb5/0xf0 net/socket.c:661 sock_write_iter+0x215/0x420 net/socket.c:966 call_write_iter include/linux/fs.h:1821 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x443/0x890 fs/read_write.c:487 vfs_write+0x150/0x4d0 fs/read_write.c:549 ksys_write+0x103/0x260 fs/read_write.c:599 __do_sys_write fs/read_write.c:611 [inline] __se_sys_write fs/read_write.c:608 [inline] __x64_sys_write+0x6e/0xb0 fs/read_write.c:608 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4641a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fd987db4198 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000c4c RCX: 00000000004641a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000053bf00 R13: 00007fd987db46bc R14: 00000000ffffffff R15: 0000000000000003 irq event stamp: 5780 hardirqs last enabled at (5779): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (5779): [] _raw_spin_unlock_irq+0x27/0x80 kernel/locking/spinlock.c:192 hardirqs last disabled at (5780): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (5764): [] spin_unlock_bh include/linux/spinlock.h:374 [inline] softirqs last enabled at (5764): [] release_sock+0x11f/0x180 net/core/sock.c:2892 softirqs last disabled at (5762): [] spin_lock_bh include/linux/spinlock.h:334 [inline] softirqs last disabled at (5762): [] release_sock+0x1b/0x180 net/core/sock.c:2879 ---[ end trace 5a4a323c5c064b22 ]--- KCM: Hard failure on kcm_write_msgs KCM: Hard failure on kcm_write_msgs