u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 32.895681][ T30] audit: type=1400 audit(1715005751.194:156): avc: denied { siginh } for pid=320 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.0.4' (ED25519) to the list of known hosts. 2024/05/06 14:29:18 ignoring optional flag "sandboxArg"="0" 2024/05/06 14:29:18 parsed 1 programs [ 40.302803][ T30] audit: type=1400 audit(1715005758.664:157): avc: denied { mounton } for pid=341 comm="syz-executor" path="/proc/sys/fs/binfmt_misc" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=dir permissive=1 [ 40.327553][ T30] audit: type=1400 audit(1715005758.664:158): avc: denied { mount } for pid=341 comm="syz-executor" name="/" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=filesystem permissive=1 [ 40.388630][ T30] audit: type=1400 audit(1715005758.754:159): avc: denied { unlink } for pid=341 comm="syz-executor" name="swap-file" dev="sda1" ino=1929 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t" 2024/05/06 14:29:18 executed programs: 0 [ 40.450782][ T341] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 40.493531][ T348] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.500406][ T348] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.507506][ T348] device bridge_slave_0 entered promiscuous mode [ 40.514233][ T348] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.521086][ T348] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.528283][ T348] device bridge_slave_1 entered promiscuous mode [ 40.559087][ T30] audit: type=1400 audit(1715005758.924:160): avc: denied { write } for pid=348 comm="syz-executor.0" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 40.563263][ T348] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.579600][ T30] audit: type=1400 audit(1715005758.924:161): avc: denied { read } for pid=348 comm="syz-executor.0" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 40.586326][ T348] bridge0: port 2(bridge_slave_1) entered forwarding state [ 40.613745][ T348] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.620586][ T348] bridge0: port 1(bridge_slave_0) entered forwarding state [ 40.636482][ T39] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.643800][ T39] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.651066][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 40.658456][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 40.676832][ T348] device veth0_vlan entered promiscuous mode [ 40.683845][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 40.692140][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 40.699942][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 40.707362][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 40.714817][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 40.723279][ T39] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.730257][ T39] bridge0: port 1(bridge_slave_0) entered forwarding state [ 40.737507][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 40.745467][ T39] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.752322][ T39] bridge0: port 2(bridge_slave_1) entered forwarding state [ 40.759532][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 40.767215][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 40.778506][ T60] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 40.787111][ T348] device veth1_macvtap entered promiscuous mode [ 40.795623][ T60] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 40.807443][ T60] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 40.818476][ T30] audit: type=1400 audit(1715005759.184:162): avc: denied { mounton } for pid=348 comm="syz-executor.0" path="/dev/binderfs" dev="devtmpfs" ino=362 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1 [ 40.848237][ T30] audit: type=1400 audit(1715005759.214:163): avc: denied { mounton } for pid=353 comm="syz-executor.0" path="/root/syzkaller-testdir515095624/syzkaller.2B0d1N/0/file0" dev="sda1" ino=1939 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 40.848863][ T354] incfs: ino conflict with backing FS 1 [ 40.874944][ T30] audit: type=1400 audit(1715005759.214:164): avc: denied { mount } for pid=353 comm="syz-executor.0" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1 [ 40.902583][ T30] audit: type=1400 audit(1715005759.214:165): avc: denied { mounton } for pid=353 comm="syz-executor.0" path="/root/syzkaller-testdir515095624/syzkaller.2B0d1N/0/file0/file0" dev="tmpfs" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_tmpfs_t tclass=dir permissive=1 [ 40.902723][ T348] ------------[ cut here ]------------ [ 40.930002][ T30] audit: type=1400 audit(1715005759.244:166): avc: denied { unmount } for pid=348 comm="syz-executor.0" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1 [ 40.935324][ T348] WARNING: CPU: 1 PID: 348 at fs/inode.c:307 drop_nlink+0xc1/0x110 [ 40.962631][ T348] Modules linked in: [ 40.966352][ T348] CPU: 0 PID: 348 Comm: syz-executor.0 Not tainted 5.15.149-syzkaller-1069109-g5d96939590c0 #0 [ 40.976674][ T348] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 40.986595][ T348] RIP: 0010:drop_nlink+0xc1/0x110 [ 40.991538][ T348] Code: 1e 48 8d bb b8 04 00 00 be 08 00 00 00 e8 c7 f8 f0 ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 bf e7 ae ff <0f> 0b eb 88 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 62 ff ff ff 4c [ 41.011249][ T348] RSP: 0018:ffffc90000a57c88 EFLAGS: 00010293 [ 41.017251][ T348] RAX: ffffffff81c13c41 RBX: 0000000000000000 RCX: ffff88810c8c3b40 [ 41.025114][ T348] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 41.032989][ T348] RBP: ffffc90000a57cb0 R08: ffffffff81c13bc4 R09: 0000000000000003 [ 41.040886][ T348] R10: fffff5200014af80 R11: dffffc0000000001 R12: dffffc0000000000 [ 41.048721][ T348] R13: 1ffff11024e10816 R14: ffff888127084068 R15: ffff8881270840b0 [ 41.056435][ T348] FS: 0000555556087480(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 41.065332][ T348] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.071814][ T348] CR2: 000000c00132a000 CR3: 0000000126171000 CR4: 00000000003506a0 [ 41.079819][ T348] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.087589][ T348] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.095353][ T348] Call Trace: [ 41.098645][ T348] [ 41.101346][ T348] ? show_regs+0x58/0x60 [ 41.105531][ T348] ? __warn+0x160/0x2f0 [ 41.109591][ T348] ? drop_nlink+0xc1/0x110 [ 41.113777][ T348] ? report_bug+0x3d9/0x5b0 [ 41.118208][ T348] ? drop_nlink+0xc1/0x110 [ 41.122363][ T348] ? handle_bug+0x41/0x70 [ 41.126532][ T348] ? exc_invalid_op+0x1b/0x50 [ 41.131245][ T348] ? asm_exc_invalid_op+0x1b/0x20 [ 41.136084][ T348] ? drop_nlink+0x44/0x110 [ 41.140528][ T348] ? drop_nlink+0xc1/0x110 [ 41.144759][ T348] ? drop_nlink+0xc1/0x110 [ 41.149044][ T348] ? drop_nlink+0xc1/0x110 [ 41.153268][ T348] shmem_rmdir+0x59/0x90 [ 41.157426][ T348] vfs_rmdir+0x324/0x470 [ 41.161556][ T348] incfs_kill_sb+0x113/0x230 [ 41.165947][ T348] deactivate_locked_super+0xad/0x110 [ 41.171481][ T348] deactivate_super+0xbe/0xf0 [ 41.176070][ T348] cleanup_mnt+0x45c/0x510 [ 41.180548][ T348] __cleanup_mnt+0x19/0x20 [ 41.184784][ T348] task_work_run+0x129/0x190 [ 41.189337][ T348] exit_to_user_mode_loop+0xc4/0xe0 [ 41.194416][ T348] exit_to_user_mode_prepare+0x5a/0xa0 [ 41.199766][ T348] syscall_exit_to_user_mode+0x26/0x160 [ 41.205208][ T348] do_syscall_64+0x49/0xb0 [ 41.209705][ T348] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 41.215380][ T348] RIP: 0033:0x7f90cc56a1d7 [ 41.219690][ T348] Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8 [ 41.239326][ T348] RSP: 002b:00007ffc2f548e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 41.247921][ T348] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f90cc56a1d7 [ 41.255883][ T348] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc2f548f10 [ 41.263726][ T348] RBP: 00007ffc2f548f10 R08: 0000000000000000 R09: 0000000000000000 [ 41.271568][ T348] R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc2f54a000 [ 41.279545][ T348] R13: 00007f90cc5b43b9 R14: 0000000000009f7c R15: 0000000000000006 [ 41.287332][ T348] [ 41.290260][ T348] ---[ end trace f27d799b85389db5 ]--- [ 41.295524][ T348] ================================================================== [ 41.303388][ T348] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60 [ 41.309461][ T348] Write of size 4 at addr 0000000000000170 by task syz-executor.0/348 [ 41.317445][ T348] [ 41.319622][ T348] CPU: 0 PID: 348 Comm: syz-executor.0 Tainted: G W 5.15.149-syzkaller-1069109-g5d96939590c0 #0 [ 41.331256][ T348] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 41.341403][ T348] Call Trace: [ 41.344525][ T348] [ 41.347296][ T348] dump_stack_lvl+0x151/0x1b7 [ 41.351811][ T348] ? io_uring_drop_tctx_refs+0x190/0x190 [ 41.357278][ T348] ? _raw_spin_lock+0xa4/0x1b0 [ 41.361882][ T348] ? _raw_spin_trylock_bh+0x190/0x190 [ 41.367089][ T348] kasan_report+0x16f/0x1c0 [ 41.371425][ T348] ? ihold+0x20/0x60 [ 41.375240][ T348] ? ihold+0x20/0x60 [ 41.378980][ T348] kasan_check_range+0x293/0x2a0 [ 41.384169][ T348] __kasan_check_write+0x14/0x20 [ 41.388958][ T348] ihold+0x20/0x60 [ 41.392701][ T348] vfs_rmdir+0x201/0x470 [ 41.396868][ T348] incfs_kill_sb+0x113/0x230 [ 41.401287][ T348] deactivate_locked_super+0xad/0x110 [ 41.406498][ T348] deactivate_super+0xbe/0xf0 [ 41.411011][ T348] cleanup_mnt+0x45c/0x510 [ 41.415260][ T348] __cleanup_mnt+0x19/0x20 [ 41.419599][ T348] task_work_run+0x129/0x190 [ 41.424029][ T348] exit_to_user_mode_loop+0xc4/0xe0 [ 41.429146][ T348] exit_to_user_mode_prepare+0x5a/0xa0 [ 41.434439][ T348] syscall_exit_to_user_mode+0x26/0x160 [ 41.439825][ T348] do_syscall_64+0x49/0xb0 [ 41.444081][ T348] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 41.450003][ T348] RIP: 0033:0x7f90cc56a1d7 [ 41.454256][ T348] Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8 [ 41.473893][ T348] RSP: 002b:00007ffc2f548e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 41.482131][ T348] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f90cc56a1d7 [ 41.489944][ T348] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc2f548f10 [ 41.497757][ T348] RBP: 00007ffc2f548f10 R08: 0000000000000000 R09: 0000000000000000 [ 41.505660][ T348] R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc2f54a000 [ 41.513488][ T348] R13: 00007f90cc5b43b9 R14: 0000000000009f7c R15: 0000000000000006 [ 41.521278][ T348] [ 41.524138][ T348] ================================================================== [ 41.532037][ T348] Disabling lock debugging due to kernel taint [ 41.539018][ T348] BUG: kernel NULL pointer dereference, address: 0000000000000170 [ 41.546629][ T348] #PF: supervisor write access in kernel mode [ 41.552530][ T348] #PF: error_code(0x0002) - not-present page [ 41.558344][ T348] PGD 1261c4067 P4D 1261c4067 PUD 0 [ 41.563468][ T348] Oops: 0002 [#1] PREEMPT SMP KASAN [ 41.568500][ T348] CPU: 0 PID: 348 Comm: syz-executor.0 Tainted: G B W 5.15.149-syzkaller-1069109-g5d96939590c0 #0 [ 41.580129][ T348] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 41.590125][ T348] RIP: 0010:ihold+0x25/0x60 [ 41.594452][ T348] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 d1 df ae ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 b0 f0 f0 ff bb 01 00 00 00 41 0f c1 9e 70 01 00 00 ff c3 bf 02 00 00 00 89 de e8 54 e3 ae [ 41.613997][ T348] RSP: 0018:ffffc90000a57cc8 EFLAGS: 00010246 [ 41.619889][ T348] RAX: ffff88810c8c3b00 RBX: 0000000000000001 RCX: ffff88810c8c3b40 [ 41.627789][ T348] RDX: 0000000000000000 RSI: 0000000000000286 RDI: 00000000ffffffff [ 41.635607][ T348] RBP: ffffc90000a57cd8 R08: ffffffff81416f3b R09: 0000000000000003 [ 41.643621][ T348] R10: fffffbfff0d9244c R11: dffffc0000000001 R12: dffffc0000000000 [ 41.651511][ T348] R13: ffff88811d266330 R14: 0000000000000000 R15: 1ffff11023a4cc6c [ 41.659320][ T348] FS: 0000555556087480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 41.668087][ T348] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.674602][ T348] CR2: 0000000000000170 CR3: 0000000126171000 CR4: 00000000003506b0 [ 41.682421][ T348] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.690310][ T348] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.698293][ T348] Call Trace: [ 41.701417][ T348] [ 41.704214][ T348] ? __die_body+0x62/0xb0 [ 41.708379][ T348] ? __die+0x7e/0x90 [ 41.712097][ T348] ? page_fault_oops+0x7f9/0xa90 [ 41.716868][ T348] ? __kasan_check_write+0x14/0x20 [ 41.721814][ T348] ? kernelmode_fixup_or_oops+0x270/0x270 [ 41.727367][ T348] ? __schedule+0xcd4/0x1590 [ 41.731825][ T348] ? exc_page_fault+0x521/0x830 [ 41.736485][ T348] ? asm_exc_page_fault+0x27/0x30 [ 41.741342][ T348] ? check_panic_on_warn+0x5b/0xb0 [ 41.746288][ T348] ? ihold+0x25/0x60 [ 41.750021][ T348] ? ihold+0x20/0x60 [ 41.753752][ T348] vfs_rmdir+0x201/0x470 [ 41.757832][ T348] incfs_kill_sb+0x113/0x230 [ 41.762257][ T348] deactivate_locked_super+0xad/0x110 [ 41.767471][ T348] deactivate_super+0xbe/0xf0 [ 41.771982][ T348] cleanup_mnt+0x45c/0x510 [ 41.776235][ T348] __cleanup_mnt+0x19/0x20 [ 41.780485][ T348] task_work_run+0x129/0x190 [ 41.784912][ T348] exit_to_user_mode_loop+0xc4/0xe0 [ 41.789955][ T348] exit_to_user_mode_prepare+0x5a/0xa0 [ 41.795243][ T348] syscall_exit_to_user_mode+0x26/0x160 [ 41.800921][ T348] do_syscall_64+0x49/0xb0 [ 41.805166][ T348] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 41.810920][ T348] RIP: 0033:0x7f90cc56a1d7 [ 41.815322][ T348] Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8 [ 41.834959][ T348] RSP: 002b:00007ffc2f548e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 41.843269][ T348] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f90cc56a1d7 [ 41.851081][ T348] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc2f548f10 [ 41.858888][ T348] RBP: 00007ffc2f548f10 R08: 0000000000000000 R09: 0000000000000000 [ 41.866786][ T348] R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc2f54a000 [ 41.874599][ T348] R13: 00007f90cc5b43b9 R14: 0000000000009f7c R15: 0000000000000006 [ 41.882513][ T348] [ 41.885487][ T348] Modules linked in: [ 41.889198][ T348] CR2: 0000000000000170 [ 41.893188][ T348] ---[ end trace f27d799b85389db6 ]--- [ 41.898473][ T348] RIP: 0010:ihold+0x25/0x60 [ 41.902811][ T348] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 d1 df ae ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 b0 f0 f0 ff bb 01 00 00 00 41 0f c1 9e 70 01 00 00 ff c3 bf 02 00 00 00 89 de e8 54 e3 ae [ 41.922339][ T348] RSP: 0018:ffffc90000a57cc8 EFLAGS: 00010246 [ 41.928236][ T348] RAX: ffff88810c8c3b00 RBX: 0000000000000001 RCX: ffff88810c8c3b40 [ 41.936058][ T348] RDX: 0000000000000000 RSI: 0000000000000286 RDI: 00000000ffffffff [ 41.943957][ T348] RBP: ffffc90000a57cd8 R08: ffffffff81416f3b R09: 0000000000000003 [ 41.951767][ T348] R10: fffffbfff0d9244c R11: dffffc0000000001 R12: dffffc0000000000 [ 41.959579][ T348] R13: ffff88811d266330 R14: 0000000000000000 R15: 1ffff11023a4cc6c [ 41.967404][ T348] FS: 0000555556087480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 41.976157][ T348] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.982579][ T348] CR2: 0000000000000170 CR3: 0000000126171000 CR4: 00000000003506b0 [ 41.990480][ T348] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.998290][ T348] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.006200][ T348] Kernel panic - not syncing: Fatal exception [ 42.012293][ T348] Kernel Offset: disabled [ 42.016419][ T348] Rebooting in 86400 seconds..