program: set_mempolicy_home_node(&(0x7f0000ffc000/0x3000)=nil, 0x3000, 0x2, 0x0) syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000000)='./file1\x00', 0x446, &(0x7f0000000280)={[{@resuid={'resuid', 0x3d, 0xee00}}, {@journal_dev={'journal_dev', 0x3d, 0x1045}}, {@oldalloc}, {@noquota}, {@minixdf}, {@barrier_val={'barrier', 0x3d, 0x2}}, {@dioread_lock}, {@nojournal_checksum}, {@orlov}, {@user_xattr}, {@errors_remount}, {@delalloc}]}, 0x1, 0x553, &(0x7f0000001080)="$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") r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x0) pwrite64(r0, &(0x7f0000000140)='2', 0x1, 0x8000c61) r1 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x101042, 0x35) r2 = socket$inet6_sctp(0xa, 0x1, 0x84) mkdirat(0xffffffffffffff9c, &(0x7f0000002040)='./file0\x00', 0x0) r3 = openat$fuse(0xffffffffffffff9c, &(0x7f0000000180), 0x42, 0x0) mount$fuse(0x0, &(0x7f00000020c0)='./file0\x00', &(0x7f0000002100), 0x0, &(0x7f0000002140)={{'fd', 0x3d, r3}, 0x2c, {'rootmode', 0x3d, 0x4000}}) read$FUSE(r3, &(0x7f0000006840)={0x2020, 0x0, 0x0, 0x0}, 0x2020) syz_fuse_handle_req(r3, &(0x7f00000042c0)="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", 0x2000, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_INIT(r3, &(0x7f0000004200)={0x50, 0x0, r4}, 0x50) syz_fuse_handle_req(0xffffffffffffffff, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, &(0x7f0000006780)={0x90}, 0x0, 0x0, 0x0, 0x0, 0x0}) syz_fuse_handle_req(0xffffffffffffffff, 0x0, 0x0, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, &(0x7f0000006780)={0x90, 0x0, 0x3, {0x5, 0x0, 0x0, 0xfffffffffffffffc, 0x0, 0x0, {0x0, 0x2000000000, 0x0, 0x2, 0x0, 0x0, 0x4, 0x0, 0x4, 0x2000, 0x7, r5, 0x0, 0xf0ee, 0xffffffff}}}, 0x0, 0x0, 0x0, 0x0, 0x0}) open(&(0x7f00000001c0)='./file0/file0\x00', 0x1800, 0x0) close_range(r2, 0xffffffffffffffff, 0x0) r6 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/power/reserved_size', 0x0, 0x83) read$FUSE(r6, &(0x7f0000001040)={0x2020}, 0x2020) pwrite64(r1, &(0x7f0000000140)='2', 0xfdef, 0xfecc) setxattr$trusted_overlay_upper(&(0x7f0000000000)='./file1\x00', &(0x7f0000000500), &(0x7f0000001040)=ANY=[], 0x841, 0x0) newfstatat(0xffffffffffffff9c, 0x0, &(0x7f0000000200), 0x1000) truncate(&(0x7f0000000180)='./file1\x00', 0x6) bpf$PROG_LOAD(0x5, &(0x7f0000000440)={0x8, 0x6, &(0x7f00000001c0)=ANY=[@ANYBLOB="b40800000000000073113500000000008510000002000000b7000000000000009500c200000000da5f2d4a004b6ccd6bf8c0009500001200000000"], &(0x7f0000000080)='GPL\x00', 0x4, 0xc3, &(0x7f000000cf3d)=""/195, 0x0, 0x0, '\x00', 0x0, @cgroup_skb}, 0x70) r7 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x42, 0x0) r8 = syz_init_net_socket$nl_rdma(0x10, 0x3, 0x10) sendmsg$netlink(r8, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000001ac0)=[{&(0x7f0000000880)={0x114, 0x1f, 0x1, 0x0, 0x25dfdbfe, "", [@nested={0x103, 0x0, 0x0, 0x1, [@typed={0xc, 0x1, 0x0, 0x0, @u64}, @typed={0x15, 0x0, 0x0, 0x0, @binary="2429718223d60c5d111d892d676f9a36fc"}, @generic="50bb2d6f67d29d6fabadb107d0def49c88ea04abde1d5e8d3fb22a1b5046778bdafefc46b0449ade68bf84b36ec7d71265fc2e882348c26c2126237dd5b3c55ae655b1086cda40e00aec58754734be31d750351dc076eb43d9621dc08c029d1608a487f26fbe810100d9009482565856555ee923c65973deb0a99b962bc0fe94a3fcae3697bd7b85b3a682167c43dbf137115a40ebddcad74875ec58e9a3af64ad02a078cf0d972df9e99f079767734f69ce475f557803f5eb4e5842f4d98fe3fa370d47eb640dc5061dc35817c8a66c29be82fd00000000000000"]}]}, 0x114}], 0x1, 0x0, 0x0, 0x40010}, 0x20004090) write$FUSE_WRITE(r7, &(0x7f00000000c0)={0x18}, 0xfffffdef) [ 84.661560][ T5295] Bluetooth: hci0: command tx timeout [ 84.808205][ T5318] loop0: detected capacity change from 0 to 1024 [ 84.817051][ T5318] ======================================================= [ 84.817051][ T5318] WARNING: The mand mount option has been deprecated and [ 84.817051][ T5318] and is ignored by this kernel. Remove the mand [ 84.817051][ T5318] option from the mount to silence this warning. [ 84.817051][ T5318] ======================================================= [ 84.852548][ T5318] EXT4-fs: Ignoring removed oldalloc option [ 84.855260][ T5318] EXT4-fs: Ignoring removed orlov option [ 84.878258][ T5318] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 84.977698][ T5318] ================================================================== [ 84.980994][ T5318] BUG: KASAN: use-after-free in ext4_ext_remove_space+0x3170/0x4280 [ 84.984662][ T5318] Read of size 4 at addr ffff8880130e4670 by task syz.0.0/5318 [ 84.988051][ T5318] [ 84.989707][ T5318] CPU: 0 UID: 0 PID: 5318 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 84.989724][ T5318] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 84.989732][ T5318] Call Trace: [ 84.989740][ T5318] [ 84.989748][ T5318] dump_stack_lvl+0xe8/0x150 [ 84.989774][ T5318] print_report+0xba/0x230 [ 84.989797][ T5318] ? ext4_ext_remove_space+0x3170/0x4280 [ 84.992808][ T5318] kasan_report+0x117/0x150 [ 84.992822][ T5318] ? ext4_ext_remove_space+0x3170/0x4280 [ 84.992836][ T5318] ext4_ext_remove_space+0x3170/0x4280 [ 84.992851][ T5318] ? __es_remove_extent+0x13d3/0x1da0 [ 84.992871][ T5318] ? __pfx_ext4_ext_remove_space+0x10/0x10 [ 84.992883][ T5318] ? ext4_es_remove_extent+0x2a7/0x4c0 [ 84.992896][ T5318] ext4_ext_truncate+0x17e/0x2f0 [ 84.992913][ T5318] ext4_truncate+0xb63/0x13b0 [ 84.992926][ T5318] ? unmap_mapping_range+0xe6/0x180 [ 84.992938][ T5318] ? __pfx_ext4_truncate+0x10/0x10 [ 84.992952][ T5318] ext4_setattr+0x106e/0x1c60 [ 84.992969][ T5318] ? __pfx_ext4_setattr+0x10/0x10 [ 84.992983][ T5318] notify_change+0xc1a/0xf40 [ 84.992994][ T5318] do_truncate+0x1c2/0x250 [ 84.993009][ T5318] ? __pfx_do_truncate+0x10/0x10 [ 84.993023][ T5318] ? apparmor_path_truncate+0x245/0x2e0 [ 84.993201][ T5318] vfs_truncate+0x4b4/0x540 [ 84.993218][ T5318] ? __pfx_vfs_truncate+0x10/0x10 [ 84.993234][ T5318] ? do_getname+0x151/0x250 [ 84.993250][ T5318] do_sys_truncate+0xf3/0x1c0 [ 84.993264][ T5318] ? __pfx_do_sys_truncate+0x10/0x10 [ 84.993280][ T5318] __x64_sys_truncate+0x5b/0x70 [ 84.993294][ T5318] do_syscall_64+0x14d/0xf80 [ 84.993372][ T5318] ? trace_irq_disable+0x3b/0x150 [ 84.993388][ T5318] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 84.993399][ T5318] ? clear_bhb_loop+0x40/0x90 [ 84.993410][ T5318] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 84.993420][ T5318] RIP: 0033:0x7f6dc4d9c629 [ 84.993518][ T5318] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 84.993528][ T5318] RSP: 002b:00007f6dc5ba7028 EFLAGS: 00000246 ORIG_RAX: 000000000000004c [ 84.993541][ T5318] RAX: ffffffffffffffda RBX: 00007f6dc5015fa0 RCX: 00007f6dc4d9c629 [ 84.993550][ T5318] RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000200000000180 [ 84.993558][ T5318] RBP: 00007f6dc4e32b39 R08: 0000000000000000 R09: 0000000000000000 [ 84.993565][ T5318] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 84.993572][ T5318] R13: 00007f6dc5016038 R14: 00007f6dc5015fa0 R15: 00007fff087fea98 [ 84.993584][ T5318] [ 84.993589][ T5318] [ 85.102787][ T5318] The buggy address belongs to the physical page: [ 85.105334][ T5318] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x7 pfn:0x130e4 [ 85.108601][ T5318] flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) [ 85.111586][ T5318] raw: 00fff00000000000 dead000000000100 dead000000000122 0000000000000000 [ 85.115180][ T5318] raw: 0000000000000007 0000000000000000 00000000ffffffff 0000000000000000 [ 85.118850][ T5318] page dumped because: kasan: bad access detected [ 85.121578][ T5318] page_owner tracks the page as freed [ 85.123818][ T5318] page last allocated via order 0, migratetype Movable, gfp_mask 0x152c4a(GFP_NOFS|__GFP_HIGHMEM|__GFP_MOVABLE|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL), pid 4712, tgid 4712 (S10udev), ts 30284335118, free_ts 81884459065 [ 85.132572][ T5318] post_alloc_hook+0x231/0x280 [ 85.134679][ T5318] get_page_from_freelist+0x24dc/0x2580 [ 85.136984][ T5318] __alloc_frozen_pages_noprof+0x18d/0x380 [ 85.139410][ T5318] alloc_pages_mpol+0x232/0x4a0 [ 85.141433][ T5318] alloc_pages_noprof+0xa8/0x190 [ 85.143555][ T5318] folio_alloc_noprof+0x1e/0x30 [ 85.145737][ T5318] filemap_alloc_folio_noprof+0x111/0x470 [ 85.147925][ T5318] page_cache_ra_unbounded+0x39b/0xa50 [ 85.149979][ T5318] page_cache_ra_order+0xaf2/0xeb0 [ 85.151890][ T5318] filemap_get_pages+0x897/0x1f10 [ 85.153835][ T5318] filemap_read+0x447/0x1230 [ 85.155466][ T5318] __kernel_read+0x504/0x9b0 [ 85.157463][ T5318] integrity_kernel_read+0x89/0xd0 [ 85.159415][ T5318] ima_calc_file_hash+0x12c3/0x17f0 [ 85.161317][ T5318] ima_collect_measurement+0x48b/0x930 [ 85.163592][ T5318] process_measurement+0x12cd/0x1c80 [ 85.165919][ T5318] page last free pid 76 tgid 76 stack trace: [ 85.168319][ T5318] free_unref_folios+0xed5/0x16d0 [ 85.170249][ T5318] shrink_folio_list+0x2a0f/0x5290 [ 85.172188][ T5318] evict_folios+0x4795/0x5880 [ 85.174137][ T5318] try_to_shrink_lruvec+0xb62/0xfa0 [ 85.176317][ T5318] shrink_one+0x25c/0x710 [ 85.178220][ T5318] shrink_node+0x3197/0x3a90 [ 85.180171][ T5318] kswapd+0x1742/0x2e10 [ 85.181988][ T5318] kthread+0x388/0x470 [ 85.183687][ T5318] ret_from_fork+0x51e/0xb90 [ 85.185648][ T5318] ret_from_fork_asm+0x1a/0x30 [ 85.187612][ T5318] [ 85.188541][ T5318] Memory state around the buggy address: [ 85.190869][ T5318] ffff8880130e4500: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 85.194338][ T5318] ffff8880130e4580: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 85.197760][ T5318] >ffff8880130e4600: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 85.201109][ T5318] ^ [ 85.204475][ T5318] ffff8880130e4680: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 85.207881][ T5318] ffff8880130e4700: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 85.211280][ T5318] ================================================================== [ 85.231955][ T5318] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 85.235246][ T5318] CPU: 0 UID: 0 PID: 5318 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 85.239054][ T5318] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 85.243231][ T5318] Call Trace: [ 85.244447][ T5318] [ 85.245599][ T5318] vpanic+0x56c/0xa60 [ 85.247411][ T5318] ? __pfx_vpanic+0x10/0x10 [ 85.249302][ T5318] panic+0xc5/0xd0 [ 85.250936][ T5318] ? __pfx_panic+0x10/0x10 [ 85.252869][ T5318] ? preempt_schedule_thunk+0x16/0x30 [ 85.255136][ T5318] ? ext4_ext_remove_space+0x3170/0x4280 [ 85.257550][ T5318] ? preempt_schedule_thunk+0x16/0x30 [ 85.259853][ T5318] ? ext4_ext_remove_space+0x3170/0x4280 [ 85.262259][ T5318] check_panic_on_warn+0x89/0xb0 [ 85.264399][ T5318] ? ext4_ext_remove_space+0x3170/0x4280 [ 85.266678][ T5318] end_report+0x73/0x180 [ 85.268525][ T5318] ? ext4_ext_remove_space+0x3170/0x4280 [ 85.270920][ T5318] kasan_report+0x128/0x150 [ 85.273101][ T5318] ? ext4_ext_remove_space+0x3170/0x4280 [ 85.275527][ T5318] ext4_ext_remove_space+0x3170/0x4280 [ 85.277938][ T5318] ? __es_remove_extent+0x13d3/0x1da0 [ 85.280109][ T5318] ? __pfx_ext4_ext_remove_space+0x10/0x10 [ 85.282351][ T5318] ? ext4_es_remove_extent+0x2a7/0x4c0 [ 85.284650][ T5318] ext4_ext_truncate+0x17e/0x2f0 [ 85.286836][ T5318] ext4_truncate+0xb63/0x13b0 [ 85.288819][ T5318] ? unmap_mapping_range+0xe6/0x180 [ 85.290985][ T5318] ? __pfx_ext4_truncate+0x10/0x10 [ 85.293032][ T5318] ext4_setattr+0x106e/0x1c60 [ 85.295032][ T5318] ? __pfx_ext4_setattr+0x10/0x10 [ 85.297154][ T5318] notify_change+0xc1a/0xf40 [ 85.299153][ T5318] do_truncate+0x1c2/0x250 [ 85.301059][ T5318] ? __pfx_do_truncate+0x10/0x10 [ 85.303221][ T5318] ? apparmor_path_truncate+0x245/0x2e0 [ 85.305400][ T5318] vfs_truncate+0x4b4/0x540 [ 85.307264][ T5318] ? __pfx_vfs_truncate+0x10/0x10 [ 85.309377][ T5318] ? do_getname+0x151/0x250 [ 85.311331][ T5318] do_sys_truncate+0xf3/0x1c0 [ 85.313415][ T5318] ? __pfx_do_sys_truncate+0x10/0x10 [ 85.315494][ T5318] __x64_sys_truncate+0x5b/0x70 [ 85.317430][ T5318] do_syscall_64+0x14d/0xf80 [ 85.319439][ T5318] ? trace_irq_disable+0x3b/0x150 [ 85.321504][ T5318] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.324163][ T5318] ? clear_bhb_loop+0x40/0x90 [ 85.326111][ T5318] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.328523][ T5318] RIP: 0033:0x7f6dc4d9c629 [ 85.330746][ T5318] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 85.339577][ T5318] RSP: 002b:00007f6dc5ba7028 EFLAGS: 00000246 ORIG_RAX: 000000000000004c [ 85.343134][ T5318] RAX: ffffffffffffffda RBX: 00007f6dc5015fa0 RCX: 00007f6dc4d9c629 [ 85.346370][ T5318] RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000200000000180 [ 85.349815][ T5318] RBP: 00007f6dc4e32b39 R08: 0000000000000000 R09: 0000000000000000 [ 85.353044][ T5318] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 85.356214][ T5318] R13: 00007f6dc5016038 R14: 00007f6dc5015fa0 R15: 00007fff087fea98 [ 85.359496][ T5318] [ 85.361022][ T5318] Kernel Offset: disabled [ 85.362902][ T5318] Rebooting in 86400 seconds..