Warning: Permanently added '10.128.0.205' (ED25519) to the list of known hosts. executing program executing program executing program executing program [ 80.488878][ T5777] syz-executor113[5777]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [ 81.128218][ T5776] loop0: detected capacity change from 0 to 32768 [ 81.190010][ T28] audit: type=1800 audit(1750404770.122:2): pid=5776 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor113" name="file1" dev="loop0" ino=4 res=0 errno=0 [ 81.224572][ T5777] loop2: detected capacity change from 0 to 32768 [ 81.282615][ T28] audit: type=1800 audit(1750404770.232:3): pid=5777 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor113" name="file1" dev="loop2" ino=4 res=0 errno=0 [ 81.298358][ T5778] loop1: detected capacity change from 0 to 32768 [ 81.332012][ T5780] loop3: detected capacity change from 0 to 32768 [ 81.391743][ T28] audit: type=1800 audit(1750404770.342:4): pid=5778 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor113" name="file1" dev="loop1" ino=4 res=0 errno=0 [ 81.471180][ T28] audit: type=1800 audit(1750404770.372:5): pid=5780 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor113" name="file1" dev="loop3" ino=4 res=0 errno=0 executing program executing program [ 81.660064][ T112] ================================================================== [ 81.668207][ T112] BUG: KASAN: slab-use-after-free in jfs_lazycommit+0x753/0xa60 [ 81.675920][ T112] Read of size 4 at addr ffff888023dda694 by task jfsCommit/112 [ 81.683595][ T112] [ 81.685936][ T112] CPU: 1 PID: 112 Comm: jfsCommit Not tainted 6.6.94-syzkaller #0 [ 81.693766][ T112] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 81.703857][ T112] Call Trace: [ 81.707186][ T112] [ 81.710159][ T112] dump_stack_lvl+0x16c/0x230 [ 81.714896][ T112] ? __lock_acquire+0x7c80/0x7c80 [ 81.719959][ T112] ? show_regs_print_info+0x20/0x20 [ 81.725207][ T112] ? load_image+0x3b0/0x3b0 [ 81.729768][ T112] ? __virt_addr_valid+0x469/0x540 [ 81.734915][ T112] print_report+0xac/0x230 [ 81.739366][ T112] ? jfs_lazycommit+0x753/0xa60 [ 81.744249][ T112] kasan_report+0x117/0x150 [ 81.748792][ T112] ? _raw_spin_lock_irqsave+0xb4/0xf0 [ 81.754219][ T112] ? jfs_lazycommit+0x753/0xa60 [ 81.759105][ T112] jfs_lazycommit+0x753/0xa60 [ 81.761590][ T786] cfg80211: failed to load regulatory.db [ 81.763801][ T112] ? txFreelock+0x5a0/0x5a0 [ 81.773967][ T112] ? do_task_dead+0xd0/0xd0 [ 81.778508][ T112] ? __kthread_parkme+0x7a/0x1c0 [ 81.783487][ T112] kthread+0x2fa/0x390 [ 81.787578][ T112] ? txFreelock+0x5a0/0x5a0 [ 81.792113][ T112] ? kthread_blkcg+0xd0/0xd0 [ 81.796739][ T112] ret_from_fork+0x48/0x80 [ 81.801278][ T112] ? kthread_blkcg+0xd0/0xd0 [ 81.805890][ T112] ret_from_fork_asm+0x11/0x20 [ 81.810690][ T112] [ 81.813728][ T112] [ 81.816061][ T112] Allocated by task 5777: [ 81.820406][ T112] kasan_set_track+0x4e/0x70 [ 81.825030][ T112] __kasan_kmalloc+0x8f/0xa0 [ 81.829644][ T112] jfs_fill_super+0xd6/0xac0 [ 81.834267][ T112] mount_bdev+0x22b/0x2d0 [ 81.838628][ T112] legacy_get_tree+0xea/0x180 [ 81.843337][ T112] vfs_get_tree+0x8c/0x280 [ 81.847783][ T112] do_new_mount+0x24b/0xa40 [ 81.852300][ T112] __se_sys_mount+0x2da/0x3c0 [ 81.856995][ T112] do_syscall_64+0x55/0xb0 [ 81.861434][ T112] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 81.867357][ T112] [ 81.869693][ T112] Freed by task 5771: [ 81.873679][ T112] kasan_set_track+0x4e/0x70 [ 81.878279][ T112] kasan_save_free_info+0x2e/0x50 [ 81.883323][ T112] ____kasan_slab_free+0x126/0x1e0 [ 81.888443][ T112] slab_free_freelist_hook+0x130/0x1b0 [ 81.893906][ T112] __kmem_cache_free+0xba/0x1f0 [ 81.898791][ T112] generic_shutdown_super+0x134/0x2b0 [ 81.904168][ T112] kill_block_super+0x44/0x90 [ 81.908852][ T112] deactivate_locked_super+0x97/0x100 [ 81.914225][ T112] cleanup_mnt+0x429/0x4c0 [ 81.918647][ T112] task_work_run+0x1ce/0x250 [ 81.923243][ T112] exit_to_user_mode_loop+0xe6/0x110 [ 81.928538][ T112] exit_to_user_mode_prepare+0xb1/0x140 [ 81.934093][ T112] syscall_exit_to_user_mode+0x1a/0x50 [ 81.939575][ T112] do_syscall_64+0x61/0xb0 [ 81.944002][ T112] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 81.949991][ T112] [ 81.952317][ T112] The buggy address belongs to the object at ffff888023dda600 [ 81.952317][ T112] which belongs to the cache kmalloc-256 of size 256 [ 81.966805][ T112] The buggy address is located 148 bytes inside of [ 81.966805][ T112] freed 256-byte region [ffff888023dda600, ffff888023dda700) [ 81.980616][ T112] [ 81.982962][ T112] The buggy address belongs to the physical page: [ 81.989377][ T112] page:ffffea00008f7680 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x23dda [ 81.999575][ T112] head:ffffea00008f7680 order:1 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 82.008510][ T112] flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff) [ 82.016509][ T112] page_type: 0xffffffff() [ 82.020953][ T112] raw: 00fff00000000840 ffff888017841b40 ffffea00008fc980 dead000000000002 [ 82.029552][ T112] raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 [ 82.038161][ T112] page dumped because: kasan: bad access detected [ 82.044602][ T112] page_owner tracks the page as allocated [ 82.050315][ T112] page last allocated via order 1, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 42, tgid 42 (kworker/u4:2), ts 7500084494, free_ts 0 [ 82.070485][ T112] post_alloc_hook+0x1cd/0x210 [ 82.075290][ T112] get_page_from_freelist+0x195c/0x19f0 [ 82.080947][ T112] __alloc_pages+0x1e3/0x460 [ 82.085642][ T112] alloc_slab_page+0x5d/0x170 [ 82.090338][ T112] new_slab+0x87/0x2e0 [ 82.094451][ T112] ___slab_alloc+0xc6d/0x12f0 [ 82.099175][ T112] __kmem_cache_alloc_node+0x1a2/0x260 [ 82.104654][ T112] kmalloc_trace+0x2a/0xe0 [ 82.109076][ T112] scsi_probe_and_add_lun+0x273/0x4480 [ 82.114543][ T112] __scsi_scan_target+0x1ec/0x1020 [ 82.119657][ T112] scsi_scan_host_selected+0x372/0x690 [ 82.125124][ T112] do_scan_async+0x11e/0x750 [ 82.129723][ T112] async_run_entry_fn+0xa3/0x3f0 [ 82.134754][ T112] process_scheduled_works+0xa45/0x15b0 [ 82.140307][ T112] worker_thread+0xa55/0xfc0 [ 82.144906][ T112] kthread+0x2fa/0x390 [ 82.148976][ T112] page_owner free stack trace missing [ 82.154343][ T112] [ 82.156670][ T112] Memory state around the buggy address: [ 82.162299][ T112] ffff888023dda580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 82.170362][ T112] ffff888023dda600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 82.178435][ T112] >ffff888023dda680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 82.186495][ T112] ^ [ 82.191100][ T112] ffff888023dda700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 82.199253][ T112] ffff888023dda780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 82.207400][ T112] ================================================================== [ 82.215461][ T112] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 82.223006][ T112] CPU: 1 PID: 112 Comm: jfsCommit Not tainted 6.6.94-syzkaller #0 [ 82.230898][ T112] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 82.240957][ T112] Call Trace: [ 82.244244][ T112] [ 82.247187][ T112] dump_stack_lvl+0x16c/0x230 [ 82.252136][ T112] ? show_regs_print_info+0x20/0x20 [ 82.257355][ T112] ? load_image+0x3b0/0x3b0 [ 82.261875][ T112] panic+0x2c0/0x710 [ 82.265791][ T112] ? bpf_jit_dump+0xd0/0xd0 [ 82.270299][ T112] ? _raw_spin_unlock_irqrestore+0xae/0x110 [ 82.276201][ T112] ? _raw_spin_unlock+0x40/0x40 [ 82.281061][ T112] ? print_memory_metadata+0x314/0x400 [ 82.286526][ T112] ? jfs_lazycommit+0x753/0xa60 [ 82.291385][ T112] check_panic_on_warn+0x84/0xa0 [ 82.296329][ T112] ? jfs_lazycommit+0x753/0xa60 [ 82.301185][ T112] end_report+0x6f/0x140 [ 82.305432][ T112] kasan_report+0x128/0x150 [ 82.309942][ T112] ? _raw_spin_lock_irqsave+0xb4/0xf0 [ 82.315327][ T112] ? jfs_lazycommit+0x753/0xa60 [ 82.320185][ T112] jfs_lazycommit+0x753/0xa60 [ 82.324874][ T112] ? txFreelock+0x5a0/0x5a0 [ 82.329392][ T112] ? do_task_dead+0xd0/0xd0 [ 82.333903][ T112] ? __kthread_parkme+0x7a/0x1c0 [ 82.338861][ T112] kthread+0x2fa/0x390 [ 82.342931][ T112] ? txFreelock+0x5a0/0x5a0 [ 82.347490][ T112] ? kthread_blkcg+0xd0/0xd0 [ 82.352196][ T112] ret_from_fork+0x48/0x80 [ 82.356625][ T112] ? kthread_blkcg+0xd0/0xd0 [ 82.361218][ T112] ret_from_fork_asm+0x11/0x20 [ 82.365997][ T112] [ 82.369291][ T112] Kernel Offset: disabled [ 82.373760][ T112] Rebooting in 86400 seconds..