Starting sshd: OK syzkaller syzkaller login: [ 23.215157][ T1174] sftp-server (1174) used greatest stack depth: 21352 bytes left [ 31.242695][ T1191] cgroup: Unknown subsys name 'net' [ 31.372723][ T1191] cgroup: Unknown subsys name 'rlimit' [ 31.567872][ T1191] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 38.979385][ T1267] syz-executor (1267) used greatest stack depth: 20744 bytes left Warning: Permanently added '10.128.15.215' (ED25519) to the list of known hosts. 2025/01/04 06:33:53 ignoring optional flag "sandboxArg"="0" 2025/01/04 06:33:54 parsed 1 programs [ 59.859352][ T1707] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k 2025/01/04 06:34:02 executed programs: 0 2025/01/04 06:34:08 executed programs: 2 [ 73.322542][ T2616] loop3: detected capacity change from 0 to 4096 [ 73.330517][ T2616] ntfs3: loop3: Different NTFS' sector size (1024) and media sector size (512) [ 73.398903][ T2616] loop3: detected capacity change from 4096 to 0 [ 73.406892][ T2618] ================================================================== [ 73.414972][ T2618] BUG: KASAN: slab-out-of-bounds in ntfs_set_ea+0x1070/0x13a0 [ 73.422429][ T2618] Write of size 4 at addr ffff88807d71b2dc by task syz.3.15/2618 [ 73.430127][ T2618] [ 73.432442][ T2618] CPU: 0 PID: 2618 Comm: syz.3.15 Not tainted 6.1.123-syzkaller #0 [ 73.440310][ T2618] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 73.450369][ T2618] Call Trace: [ 73.453641][ T2618] [ 73.456590][ T2618] dump_stack_lvl+0xf4/0x251 [ 73.461169][ T2618] ? nf_tcp_handle_invalid+0x2f3/0x2f3 [ 73.466609][ T2618] ? panic+0x3fe/0x3fe [ 73.470660][ T2618] ? lock_acquire+0xbe/0x390 [ 73.475233][ T2618] ? read_lock_is_recursive+0x10/0x10 [ 73.480584][ T2618] ? __virt_addr_valid+0x139/0x270 [ 73.485688][ T2618] ? __virt_addr_valid+0x221/0x270 [ 73.490800][ T2618] print_report+0x15f/0x4f0 [ 73.495292][ T2618] ? __virt_addr_valid+0x139/0x270 [ 73.500381][ T2618] ? __virt_addr_valid+0x221/0x270 [ 73.505472][ T2618] ? ntfs_set_ea+0x1070/0x13a0 [ 73.510217][ T2618] kasan_report+0x136/0x160 [ 73.514703][ T2618] ? ntfs_set_ea+0x1070/0x13a0 [ 73.519446][ T2618] ntfs_set_ea+0x1070/0x13a0 [ 73.524017][ T2618] ? ntfs_save_wsl_perm+0x480/0x480 [ 73.529196][ T2618] ? make_kuid+0x6d0/0x6d0 [ 73.533592][ T2618] ? tomoyo_path_number_perm+0x54d/0x6a0 [ 73.539217][ T2618] ntfs_save_wsl_perm+0x128/0x480 [ 73.544241][ T2618] ? current_time+0x82/0x240 [ 73.548812][ T2618] ? ntfs_listxattr+0x5d0/0x5d0 [ 73.553641][ T2618] ? in_group_or_capable+0x10/0x30 [ 73.558730][ T2618] ? setattr_copy+0x313/0x510 [ 73.563387][ T2618] ntfs3_setattr+0x295/0x910 [ 73.567954][ T2618] ? current_time+0x82/0x240 [ 73.572525][ T2618] ? PageUptodate+0x180/0x180 [ 73.577192][ T2618] ? common_perm_cond+0x2cf/0x390 [ 73.582208][ T2618] ? common_perm+0x1a0/0x1a0 [ 73.586785][ T2618] notify_change+0x937/0xc40 [ 73.591367][ T2618] chmod_common+0x2b2/0x4d0 [ 73.595889][ T2618] ? __ia32_sys_chroot+0x30/0x30 [ 73.600810][ T2618] ? kmem_cache_free+0x2e8/0x510 [ 73.605730][ T2618] __x64_sys_fchmodat+0x109/0x180 [ 73.610734][ T2618] ? __ia32_sys_fchmod+0x100/0x100 [ 73.615853][ T2618] do_syscall_64+0x3b/0x80 [ 73.620251][ T2618] ? clear_bhb_loop+0x45/0xa0 [ 73.624911][ T2618] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 73.630794][ T2618] RIP: 0033:0x7efe6a17e719 [ 73.635189][ T2618] 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 a8 ff ff ff f7 d8 64 89 01 48 [ 73.654785][ T2618] RSP: 002b:00007efe69fff038 EFLAGS: 00000246 ORIG_RAX: 000000000000010c [ 73.663179][ T2618] RAX: ffffffffffffffda RBX: 00007efe6a336058 RCX: 00007efe6a17e719 [ 73.671133][ T2618] RDX: 0000000000000141 RSI: 0000000020000200 RDI: ffffffffffffff9c [ 73.679086][ T2618] RBP: 00007efe6a1f175e R08: 0000000000000000 R09: 0000000000000000 [ 73.687080][ T2618] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 73.695044][ T2618] R13: 0000000000000001 R14: 00007efe6a336058 R15: 00007ffd665ed898 [ 73.703011][ T2618] [ 73.706023][ T2618] [ 73.708332][ T2618] Allocated by task 1702: [ 73.712641][ T2618] kasan_set_track+0x4b/0x70 [ 73.717218][ T2618] __kasan_slab_alloc+0x65/0x70 [ 73.722049][ T2618] slab_post_alloc_hook+0x54/0x3e0 [ 73.727141][ T2618] kmem_cache_alloc+0x10c/0x290 [ 73.731975][ T2618] ep_insert+0x135c/0x1670 [ 73.736374][ T2618] do_epoll_ctl+0x5f6/0xac0 [ 73.740861][ T2618] __x64_sys_epoll_ctl+0x12e/0x170 [ 73.745952][ T2618] do_syscall_64+0x3b/0x80 [ 73.750371][ T2618] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 73.756343][ T2618] [ 73.758652][ T2618] The buggy address belongs to the object at ffff88807d71b2c0 [ 73.758652][ T2618] which belongs to the cache ep_head of size 16 [ 73.772262][ T2618] The buggy address is located 12 bytes to the right of [ 73.772262][ T2618] 16-byte region [ffff88807d71b2c0, ffff88807d71b2d0) [ 73.785866][ T2618] [ 73.788172][ T2618] The buggy address belongs to the physical page: [ 73.794573][ T2618] page:ffffea0001f5c6c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88807d71b2e0 pfn:0x7d71b [ 73.806098][ T2618] flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) [ 73.813738][ T2618] raw: 00fff00000000200 0000000000000000 dead000000000122 ffff888015647640 [ 73.822402][ T2618] raw: ffff88807d71b2e0 000000008080007d 00000001ffffffff 0000000000000000 [ 73.831056][ T2618] page dumped because: kasan: bad access detected [ 73.837456][ T2618] page_owner tracks the page as allocated [ 73.843175][ T2618] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 1040, tgid 1040 (udevd), ts 8649252200, free_ts 8647596345 [ 73.860689][ T2618] post_alloc_hook+0x286/0x2b0 [ 73.865439][ T2618] get_page_from_freelist+0x340b/0x35b0 [ 73.870966][ T2618] __alloc_pages+0x251/0x640 [ 73.875534][ T2618] alloc_slab_page+0x6a/0x150 [ 73.880188][ T2618] new_slab+0x70/0x250 [ 73.884234][ T2618] ___slab_alloc+0x9df/0xe70 [ 73.888808][ T2618] kmem_cache_alloc+0x18b/0x290 [ 73.893635][ T2618] ep_insert+0x135c/0x1670 [ 73.898030][ T2618] do_epoll_ctl+0x5f6/0xac0 [ 73.902513][ T2618] __x64_sys_epoll_ctl+0x12e/0x170 [ 73.907602][ T2618] do_syscall_64+0x3b/0x80 [ 73.911999][ T2618] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 73.917873][ T2618] page last free stack trace: [ 73.922526][ T2618] free_unref_page_prepare+0x10b7/0x13b0 [ 73.928139][ T2618] free_unref_page+0x33/0x390 [ 73.932794][ T2618] tlb_finish_mmu+0x135/0x1b0 [ 73.937450][ T2618] exit_mmap+0x330/0x6f0 [ 73.941693][ T2618] __mmput+0x9b/0x2e0 [ 73.945655][ T2618] exit_mm+0x122/0x1b0 [ 73.949729][ T2618] do_exit+0x819/0x23a0 [ 73.953865][ T2618] do_group_exit+0x1b5/0x280 [ 73.958657][ T2618] __x64_sys_exit_group+0x3b/0x40 [ 73.963721][ T2618] do_syscall_64+0x3b/0x80 [ 73.968116][ T2618] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 73.973991][ T2618] [ 73.976315][ T2618] Memory state around the buggy address: [ 73.981981][ T2618] ffff88807d71b180: fb fb fc fc fb fb fc fc fb fb fc fc 00 00 fc fc [ 73.990037][ T2618] ffff88807d71b200: 00 00 fc fc 00 00 fc fc fb fb fc fc fb fb fc fc [ 73.998112][ T2618] >ffff88807d71b280: 00 00 fc fc fa fb fc fc 00 00 fc fc fb fb fc fc [ 74.006155][ T2618] ^ [ 74.013098][ T2618] ffff88807d71b300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 74.021139][ T2618] ffff88807d71b380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 74.029180][ T2618] ================================================================== [ 74.037789][ T2618] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 74.045347][ T2618] Kernel Offset: disabled [ 74.049659][ T2618] Rebooting in 86400 seconds..