Warning: Permanently added '10.128.0.253' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 74.430444][ T27] audit: type=1400 audit(1600620867.768:8): avc: denied { execmem } for pid=6890 comm="syz-executor994" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 74.436422][ T6890] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN [ 74.463770][ T6890] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 74.472176][ T6890] CPU: 0 PID: 6890 Comm: syz-executor994 Not tainted 5.9.0-rc5-syzkaller #0 [ 74.480907][ T6890] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.490951][ T6890] RIP: 0010:jffs2_parse_param+0x141/0x330 [ 74.496647][ T6890] Code: 48 c1 ea 03 4d 63 fc 80 3c 02 00 0f 85 de 01 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 75 00 49 8d 7e 08 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 c8 01 00 00 4d 8b 76 08 4c 89 ff 4c 89 f6 e8 d6 [ 74.516404][ T6890] RSP: 0018:ffffc90001097b78 EFLAGS: 00010202 [ 74.522480][ T6890] RAX: dffffc0000000000 RBX: ffff88808e684800 RCX: ffffffff82882084 [ 74.530442][ T6890] RDX: 0000000000000001 RSI: ffffffff82882096 RDI: 0000000000000008 [ 74.539041][ T6890] RBP: 1ffff92000212f6f R08: 0000000000000001 R09: 0000000000000003 [ 74.547077][ T6890] R10: 00000000003fffff R11: 0000000000000000 R12: 0000000000000000 [ 74.555125][ T6890] R13: ffff8880a8bf8000 R14: 0000000000000000 R15: 0000000000000000 [ 74.563082][ T6890] FS: 0000000000ad8880(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000 [ 74.572639][ T6890] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.579324][ T6890] CR2: 000000000043e830 CR3: 000000009e81a000 CR4: 00000000001506f0 [ 74.587278][ T6890] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 74.595507][ T6890] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 74.603460][ T6890] Call Trace: [ 74.606739][ T6890] ? jffs2_alloc_inode+0x40/0x40 [ 74.614296][ T6890] ? vfs_parse_fs_param+0x540/0x550 [ 74.619490][ T6890] ? jffs2_alloc_inode+0x40/0x40 [ 74.624462][ T6890] vfs_parse_fs_param+0x203/0x550 [ 74.629512][ T6890] vfs_parse_fs_string+0xe6/0x150 [ 74.634543][ T6890] ? vfs_parse_fs_param+0x550/0x550 [ 74.641232][ T6890] ? selinux_sb_eat_lsm_opts+0x672/0x820 [ 74.646974][ T6890] ? bpf_lsm_sb_eat_lsm_opts+0x5/0x10 [ 74.652334][ T6890] generic_parse_monolithic+0x16f/0x1f0 [ 74.658078][ T6890] ? vfs_parse_fs_string+0x150/0x150 [ 74.663487][ T6890] ? jffs2_get_parent+0x60/0x60 [ 74.668433][ T6890] ? alloc_fs_context+0x56e/0x880 [ 74.673463][ T6890] path_mount+0x133f/0x20a0 [ 74.677958][ T6890] ? strncpy_from_user+0x2bf/0x3e0 [ 74.683059][ T6890] ? copy_mount_string+0x40/0x40 [ 74.688213][ T6890] ? getname_flags.part.0+0x1dd/0x4f0 [ 74.693577][ T6890] __x64_sys_mount+0x27f/0x300 [ 74.698420][ T6890] ? copy_mnt_ns+0xa60/0xa60 [ 74.702991][ T6890] ? check_preemption_disabled+0x50/0x130 [ 74.709043][ T6890] ? syscall_enter_from_user_mode+0x1d/0x60 [ 74.715013][ T6890] do_syscall_64+0x2d/0x70 [ 74.719407][ T6890] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 74.725280][ T6890] RIP: 0033:0x44699a [ 74.729150][ T6890] Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 7d ae fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 5a ae fb ff c3 66 0f 1f 84 00 00 00 00 00 [ 74.748985][ T6890] RSP: 002b:00007ffd3858e768 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 74.757763][ T6890] RAX: ffffffffffffffda RBX: 00007ffd3858e7b0 RCX: 000000000044699a [ 74.766137][ T6890] RDX: 0000000020001300 RSI: 0000000020001340 RDI: 0000000000000000 [ 74.774115][ T6890] RBP: 0000000000000000 R08: 00007ffd3858e7b0 R09: 0000000000000014 [ 74.782071][ T6890] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401c80 [ 74.790179][ T6890] R13: 0000000000401d10 R14: 0000000000000000 R15: 0000000000000000 [ 74.798140][ T6890] Modules linked in: [ 74.802233][ T6890] ---[ end trace f329425af820e287 ]--- [ 74.807906][ T6890] RIP: 0010:jffs2_parse_param+0x141/0x330 [ 74.813771][ T6890] Code: 48 c1 ea 03 4d 63 fc 80 3c 02 00 0f 85 de 01 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 75 00 49 8d 7e 08 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 c8 01 00 00 4d 8b 76 08 4c 89 ff 4c 89 f6 e8 d6 [ 74.833854][ T6890] RSP: 0018:ffffc90001097b78 EFLAGS: 00010202 [ 74.840201][ T6890] RAX: dffffc0000000000 RBX: ffff88808e684800 RCX: ffffffff82882084 [ 74.848292][ T6890] RDX: 0000000000000001 RSI: ffffffff82882096 RDI: 0000000000000008 [ 74.856304][ T6890] RBP: 1ffff92000212f6f R08: 0000000000000001 R09: 0000000000000003 [ 74.864392][ T6890] R10: 00000000003fffff R11: 0000000000000000 R12: 0000000000000000 [ 74.872617][ T6890] R13: ffff8880a8bf8000 R14: 0000000000000000 R15: 0000000000000000 [ 74.880672][ T6890] FS: 0000000000ad8880(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000 [ 74.889637][ T6890] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.896258][ T6890] CR2: 000000000043e830 CR3: 000000009e81a000 CR4: 00000000001506f0 [ 74.904282][ T6890] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 74.913274][ T6890] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 74.921248][ T6890] Kernel panic - not syncing: Fatal exception [ 74.928797][ T6890] Kernel Offset: disabled [ 74.933115][ T6890] Rebooting in 86400 seconds..