Warning: Permanently added '10.128.0.212' (ED25519) to the list of known hosts. Setting up swapspace version 1, size = 127995904 bytes syzkaller login: [ 43.090728][ T3501] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 43.158995][ T2575] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 43.172147][ T2575] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 43.182219][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 43.182225][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 43.182254][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program [ 43.206171][ T2926] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 43.216676][ T3503] syz-executor367 (pid 3503) is setting deprecated v1 encryption policy; recommend upgrading to v2. [ 43.274263][ T3503] fscrypt: AES-128-CTS-CBC using implementation "cts-cbc-aes-aesni" [ 43.283358][ T3503] FAULT_INJECTION: forcing a failure. [ 43.283358][ T3503] name failslab, interval 1, probability 0, space 0, times 1 [ 43.296101][ T3503] CPU: 0 PID: 3503 Comm: syz-executor367 Not tainted 5.15.143-syzkaller #0 [ 43.304680][ T3503] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 [ 43.314716][ T3503] Call Trace: [ 43.317973][ T3503] [ 43.320882][ T3503] dump_stack_lvl+0x1e3/0x2cb [ 43.325548][ T3503] ? io_uring_drop_tctx_refs+0x19d/0x19d [ 43.331155][ T3503] ? panic+0x84d/0x84d [ 43.335201][ T3503] ? __might_sleep+0xc0/0xc0 [ 43.339763][ T3503] ? __ext4_new_inode+0x37e8/0x4430 [ 43.344935][ T3503] ? tomoyo_path_perm+0x555/0x6b0 [ 43.349936][ T3503] should_fail+0x38a/0x4c0 [ 43.354329][ T3503] should_failslab+0x5/0x20 [ 43.358810][ T3503] slab_pre_alloc_hook+0x53/0xc0 [ 43.363722][ T3503] __kmalloc+0x6e/0x300 [ 43.367855][ T3503] ? __fscrypt_encrypt_symlink+0x16d/0x430 [ 43.373646][ T3503] __fscrypt_encrypt_symlink+0x16d/0x430 [ 43.379261][ T3503] ? fscrypt_prepare_symlink+0x150/0x150 [ 43.384872][ T3503] ext4_symlink+0x5b2/0xed0 [ 43.389363][ T3503] ? ext4_unlink+0x530/0x530 [ 43.393934][ T3503] ? inode_permission+0xf7/0x450 [ 43.398844][ T3503] ? bpf_lsm_inode_symlink+0x5/0x10 [ 43.404033][ T3503] ? security_inode_symlink+0xaf/0xf0 [ 43.409382][ T3503] vfs_symlink+0x2ad/0x490 [ 43.413781][ T3503] do_symlinkat+0x1fd/0x600 [ 43.418260][ T3503] ? vfs_symlink+0x490/0x490 [ 43.422834][ T3503] ? getname_flags+0x1ec/0x4e0 [ 43.427581][ T3503] ? lockdep_hardirqs_on+0x94/0x130 [ 43.432753][ T3503] __x64_sys_symlink+0x7a/0x90 [ 43.437493][ T3503] do_syscall_64+0x3d/0xb0 [ 43.441889][ T3503] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 43.447764][ T3503] RIP: 0033:0x7ff734690269 [ 43.452155][ T3503] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 1f 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 [ 43.471737][ T3503] RSP: 002b:00007ffee17ee7e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000058 [ 43.480124][ T3503] RAX: ffffffffffffffda RBX: 00007ffee17ee7f0 RCX: 00007ff734690269 [ 43.488071][ T3503] RDX: 00007ff73468f170 RSI: 0000000020000180 RDI: 0000000020000140 [ 43.496016][ T3503] RBP: 0000000000000002 R08: 00007ffee17ee586 R09: 0000000000003432 [ 43.503965][ T3503] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000003 [ 43.511912][ T3503] R13: 0000000000050012 R14: 00007ffee17ee8ea R15: 000000000000000d [ 43.519879][ T3503] [ 43.523513][ T3503] ================================================================== [ 43.531672][ T3503] BUG: KASAN: use-after-free in jbd2_journal_get_write_access+0x12f/0x140 [ 43.540153][ T3503] Read of size 4 at addr ffff888071a53eec by task syz-executor367/3503 [ 43.548359][ T3503] [ 43.550658][ T3503] CPU: 0 PID: 3503 Comm: syz-executor367 Not tainted 5.15.143-syzkaller #0 [ 43.559216][ T3503] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 [ 43.569260][ T3503] Call Trace: [ 43.572519][ T3503] [ 43.575438][ T3503] dump_stack_lvl+0x1e3/0x2cb [ 43.580114][ T3503] ? io_uring_drop_tctx_refs+0x19d/0x19d [ 43.585722][ T3503] ? _printk+0xd1/0x111 [ 43.589852][ T3503] ? __wake_up_klogd+0xcc/0x100 [ 43.594678][ T3503] ? panic+0x84d/0x84d [ 43.598717][ T3503] ? _raw_spin_lock_irqsave+0xdd/0x120 [ 43.604149][ T3503] print_address_description+0x63/0x3b0 [ 43.609675][ T3503] ? jbd2_journal_get_write_access+0x12f/0x140 [ 43.615800][ T3503] kasan_report+0x16b/0x1c0 [ 43.620277][ T3503] ? jbd2_journal_get_write_access+0x12f/0x140 [ 43.626406][ T3503] jbd2_journal_get_write_access+0x12f/0x140 [ 43.632361][ T3503] __ext4_journal_get_write_access+0x257/0x6b0 [ 43.638497][ T3503] ? __ext4_journal_ensure_credits+0x460/0x460 [ 43.644628][ T3503] ext4_reserve_inode_write+0x2bd/0x3d0 [ 43.650148][ T3503] ? __might_sleep+0xc0/0xc0 [ 43.654715][ T3503] ? ext4_mark_iloc_dirty+0x43b0/0x43b0 [ 43.660233][ T3503] ? jbd2_journal_stop+0x8d9/0xd70 [ 43.665316][ T3503] ? rcu_is_watching+0x11/0xa0 [ 43.670059][ T3503] __ext4_mark_inode_dirty+0x1d6/0x860 [ 43.675492][ T3503] ? jbd2_journal_stop+0x8d9/0xd70 [ 43.680583][ T3503] ? ext4_blocks_for_truncate+0x270/0x270 [ 43.686275][ T3503] ? __fscrypt_encrypt_symlink+0x2f2/0x430 [ 43.692054][ T3503] ? jbd2_journal_start_reserved+0x300/0x300 [ 43.698009][ T3503] ? fscrypt_prepare_symlink+0x150/0x150 [ 43.703617][ T3503] ext4_symlink+0xa2f/0xed0 [ 43.708102][ T3503] ? ext4_unlink+0x530/0x530 [ 43.712669][ T3503] ? inode_permission+0xf7/0x450 [ 43.717580][ T3503] ? bpf_lsm_inode_symlink+0x5/0x10 [ 43.722747][ T3503] ? security_inode_symlink+0xaf/0xf0 [ 43.728095][ T3503] vfs_symlink+0x2ad/0x490 [ 43.732490][ T3503] do_symlinkat+0x1fd/0x600 [ 43.736972][ T3503] ? vfs_symlink+0x490/0x490 [ 43.741538][ T3503] ? getname_flags+0x1ec/0x4e0 [ 43.746272][ T3503] ? lockdep_hardirqs_on+0x94/0x130 [ 43.751446][ T3503] __x64_sys_symlink+0x7a/0x90 [ 43.756184][ T3503] do_syscall_64+0x3d/0xb0 [ 43.760577][ T3503] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 43.766442][ T3503] RIP: 0033:0x7ff734690269 [ 43.770829][ T3503] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 1f 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 [ 43.790410][ T3503] RSP: 002b:00007ffee17ee7e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000058 [ 43.798799][ T3503] RAX: ffffffffffffffda RBX: 00007ffee17ee7f0 RCX: 00007ff734690269 [ 43.806746][ T3503] RDX: 00007ff73468f170 RSI: 0000000020000180 RDI: 0000000020000140 [ 43.814691][ T3503] RBP: 0000000000000002 R08: 00007ffee17ee586 R09: 0000000000003432 [ 43.822636][ T3503] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000003 [ 43.830581][ T3503] R13: 0000000000050012 R14: 00007ffee17ee8ea R15: 000000000000000d [ 43.838536][ T3503] [ 43.841529][ T3503] [ 43.843830][ T3503] Allocated by task 3503: [ 43.848126][ T3503] __kasan_slab_alloc+0x8e/0xc0 [ 43.852954][ T3503] slab_post_alloc_hook+0x53/0x380 [ 43.858035][ T3503] kmem_cache_alloc+0xf3/0x280 [ 43.862767][ T3503] jbd2__journal_start+0x144/0x5c0 [ 43.867850][ T3503] __ext4_journal_start_sb+0x175/0x370 [ 43.873279][ T3503] __ext4_new_inode+0x138b/0x4430 [ 43.878272][ T3503] ext4_symlink+0x4c3/0xed0 [ 43.882750][ T3503] vfs_symlink+0x2ad/0x490 [ 43.887145][ T3503] do_symlinkat+0x1fd/0x600 [ 43.891624][ T3503] __x64_sys_symlink+0x7a/0x90 [ 43.896365][ T3503] do_syscall_64+0x3d/0xb0 [ 43.900754][ T3503] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 43.906619][ T3503] [ 43.908917][ T3503] Freed by task 3503: [ 43.912863][ T3503] kasan_set_track+0x4b/0x80 [ 43.917428][ T3503] kasan_set_free_info+0x1f/0x40 [ 43.922348][ T3503] ____kasan_slab_free+0xd8/0x120 [ 43.927347][ T3503] slab_free_freelist_hook+0xdd/0x160 [ 43.932689][ T3503] kmem_cache_free+0x91/0x1f0 [ 43.937341][ T3503] jbd2_journal_stop+0x8d9/0xd70 [ 43.942253][ T3503] __ext4_journal_stop+0xf8/0x190 [ 43.947249][ T3503] ext4_symlink+0x5fe/0xed0 [ 43.951726][ T3503] vfs_symlink+0x2ad/0x490 [ 43.956115][ T3503] do_symlinkat+0x1fd/0x600 [ 43.960635][ T3503] __x64_sys_symlink+0x7a/0x90 [ 43.965386][ T3503] do_syscall_64+0x3d/0xb0 [ 43.969785][ T3503] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 43.975650][ T3503] [ 43.977947][ T3503] The buggy address belongs to the object at ffff888071a53ec8 [ 43.977947][ T3503] which belongs to the cache jbd2_journal_handle of size 56 [ 43.992576][ T3503] The buggy address is located 36 bytes inside of [ 43.992576][ T3503] 56-byte region [ffff888071a53ec8, ffff888071a53f00) [ 44.005648][ T3503] The buggy address belongs to the page: [ 44.011249][ T3503] page:ffffea0001c694c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x71a53 [ 44.021370][ T3503] flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) [ 44.028890][ T3503] raw: 00fff00000000200 0000000000000000 dead000000000122 ffff88814634d140 [ 44.037446][ T3503] raw: 0000000000000000 00000000802e002e 00000001ffffffff 0000000000000000 [ 44.045997][ T3503] page dumped because: kasan: bad access detected [ 44.052380][ T3503] page_owner tracks the page as allocated [ 44.058066][ T3503] page last allocated via order 0, migratetype Reclaimable, gfp_mask 0x12c50(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY|__GFP_RECLAIMABLE), pid 3492, ts 35917830207, free_ts 10187209887 [ 44.075655][ T3503] get_page_from_freelist+0x322a/0x33c0 [ 44.081179][ T3503] __alloc_pages+0x272/0x700 [ 44.085743][ T3503] new_slab+0xbb/0x4b0 [ 44.089788][ T3503] ___slab_alloc+0x6f6/0xe10 [ 44.094353][ T3503] kmem_cache_alloc+0x18e/0x280 [ 44.099174][ T3503] jbd2__journal_start+0x144/0x5c0 [ 44.104257][ T3503] __ext4_journal_start_sb+0x175/0x370 [ 44.109689][ T3503] ext4_dirty_inode+0x8b/0x100 [ 44.114431][ T3503] __mark_inode_dirty+0x2fd/0xd60 [ 44.119425][ T3503] generic_write_end+0x232/0x440 [ 44.124333][ T3503] ext4_da_write_end+0x72d/0x9e0 [ 44.129241][ T3503] generic_perform_write+0x3b7/0x5b0 [ 44.134528][ T3503] ext4_buffered_write_iter+0x227/0x360 [ 44.140049][ T3503] ext4_file_write_iter+0x87c/0x1990 [ 44.145316][ T3503] vfs_write+0xacf/0xe50 [ 44.149532][ T3503] ksys_write+0x1a2/0x2c0 [ 44.153833][ T3503] page last free stack trace: [ 44.158476][ T3503] free_unref_page_prepare+0xc34/0xcf0 [ 44.163910][ T3503] free_unref_page+0x95/0x2d0 [ 44.168558][ T3503] free_contig_range+0x95/0xf0 [ 44.173297][ T3503] destroy_args+0xfe/0x97f [ 44.177688][ T3503] debug_vm_pgtable+0x40d/0x462 [ 44.182529][ T3503] do_one_initcall+0x22b/0x7a0 [ 44.187272][ T3503] do_initcall_level+0x157/0x207 [ 44.192192][ T3503] do_initcalls+0x49/0x86 [ 44.196514][ T3503] kernel_init_freeable+0x425/0x5b5 [ 44.201681][ T3503] kernel_init+0x19/0x290 [ 44.205982][ T3503] ret_from_fork+0x1f/0x30 [ 44.210371][ T3503] [ 44.212667][ T3503] Memory state around the buggy address: [ 44.218267][ T3503] ffff888071a53d80: fb fb fb fb fc fc fc fc fa fb fb fb fb fb fb fc [ 44.226307][ T3503] ffff888071a53e00: fc fc fc fa fb fb fb fb fb fb fc fc fc fc fa fb [ 44.234352][ T3503] >ffff888071a53e80: fb fb fb fb fb fc fc fc fc fa fb fb fb fb fb fb [ 44.242385][ T3503] ^ [ 44.249808][ T3503] ffff888071a53f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 44.257839][ T3503] ffff888071a53f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 44.265867][ T3503] ================================================================== [ 44.273895][ T3503] Disabling lock debugging due to kernel taint [ 44.280734][ T3503] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 44.287922][ T3503] CPU: 0 PID: 3503 Comm: syz-executor367 Tainted: G B 5.15.143-syzkaller #0 [ 44.297883][ T3503] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 [ 44.307911][ T3503] Call Trace: [ 44.311166][ T3503] [ 44.314072][ T3503] dump_stack_lvl+0x1e3/0x2cb [ 44.318723][ T3503] ? io_uring_drop_tctx_refs+0x19d/0x19d [ 44.324325][ T3503] ? panic+0x84d/0x84d [ 44.328365][ T3503] ? preempt_schedule_common+0xa6/0xd0 [ 44.333797][ T3503] ? preempt_schedule+0xd9/0xe0 [ 44.338621][ T3503] panic+0x318/0x84d [ 44.342487][ T3503] ? check_panic_on_warn+0x1d/0xa0 [ 44.347576][ T3503] ? fb_is_primary_device+0xcc/0xcc [ 44.352750][ T3503] ? _raw_spin_unlock_irqrestore+0x128/0x130 [ 44.358701][ T3503] ? _raw_spin_unlock+0x40/0x40 [ 44.363523][ T3503] ? print_memory_metadata+0xe2/0x140 [ 44.368867][ T3503] check_panic_on_warn+0x7e/0xa0 [ 44.373773][ T3503] ? jbd2_journal_get_write_access+0x12f/0x140 [ 44.379897][ T3503] end_report+0x6d/0xf0 [ 44.384026][ T3503] kasan_report+0x18e/0x1c0 [ 44.388500][ T3503] ? jbd2_journal_get_write_access+0x12f/0x140 [ 44.394641][ T3503] jbd2_journal_get_write_access+0x12f/0x140 [ 44.400602][ T3503] __ext4_journal_get_write_access+0x257/0x6b0 [ 44.406727][ T3503] ? __ext4_journal_ensure_credits+0x460/0x460 [ 44.412852][ T3503] ext4_reserve_inode_write+0x2bd/0x3d0 [ 44.418371][ T3503] ? __might_sleep+0xc0/0xc0 [ 44.422943][ T3503] ? ext4_mark_iloc_dirty+0x43b0/0x43b0 [ 44.428458][ T3503] ? jbd2_journal_stop+0x8d9/0xd70 [ 44.433539][ T3503] ? rcu_is_watching+0x11/0xa0 [ 44.438276][ T3503] __ext4_mark_inode_dirty+0x1d6/0x860 [ 44.443707][ T3503] ? jbd2_journal_stop+0x8d9/0xd70 [ 44.448790][ T3503] ? ext4_blocks_for_truncate+0x270/0x270 [ 44.454481][ T3503] ? __fscrypt_encrypt_symlink+0x2f2/0x430 [ 44.460266][ T3503] ? jbd2_journal_start_reserved+0x300/0x300 [ 44.466217][ T3503] ? fscrypt_prepare_symlink+0x150/0x150 [ 44.471822][ T3503] ext4_symlink+0xa2f/0xed0 [ 44.476301][ T3503] ? ext4_unlink+0x530/0x530 [ 44.480862][ T3503] ? inode_permission+0xf7/0x450 [ 44.485770][ T3503] ? bpf_lsm_inode_symlink+0x5/0x10 [ 44.490961][ T3503] ? security_inode_symlink+0xaf/0xf0 [ 44.496309][ T3503] vfs_symlink+0x2ad/0x490 [ 44.500702][ T3503] do_symlinkat+0x1fd/0x600 [ 44.505177][ T3503] ? vfs_symlink+0x490/0x490 [ 44.509737][ T3503] ? getname_flags+0x1ec/0x4e0 [ 44.514471][ T3503] ? lockdep_hardirqs_on+0x94/0x130 [ 44.519637][ T3503] __x64_sys_symlink+0x7a/0x90 [ 44.524372][ T3503] do_syscall_64+0x3d/0xb0 [ 44.528760][ T3503] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 44.534622][ T3503] RIP: 0033:0x7ff734690269 [ 44.539009][ T3503] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 1f 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 [ 44.558584][ T3503] RSP: 002b:00007ffee17ee7e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000058 [ 44.566966][ T3503] RAX: ffffffffffffffda RBX: 00007ffee17ee7f0 RCX: 00007ff734690269 [ 44.574914][ T3503] RDX: 00007ff73468f170 RSI: 0000000020000180 RDI: 0000000020000140 [ 44.582858][ T3503] RBP: 0000000000000002 R08: 00007ffee17ee586 R09: 0000000000003432 [ 44.590801][ T3503] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000003 [ 44.598745][ T3503] R13: 0000000000050012 R14: 00007ffee17ee8ea R15: 000000000000000d [ 44.606692][ T3503] [ 44.609855][ T3503] Kernel Offset: disabled [ 44.614156][ T3503] Rebooting in 86400 seconds..