program: r0 = openat$fuse(0xffffffffffffff9c, &(0x7f0000000300), 0x42, 0x0) mount$fuse(0x0, &(0x7f00000020c0)='./file0\x00', &(0x7f0000002100), 0x5, &(0x7f0000000440)=ANY=[@ANYBLOB='fd=', @ANYRESHEX=r0, @ANYBLOB="2c726f6f746d6f64653d30303030303030303030303030303030302134443065a71ce97365725f69643d1cb7cd58a584b56e0603ef0e3fd18de804c63b86496bd4974888118508bda39e4db92919aee47b28", @ANYRESDEC=0x0, @ANYBLOB=',group_id=', @ANYRESDEC=0x0, @ANYBLOB=',\x00']) read$FUSE(r0, &(0x7f00000021c0)={0x2020, 0x0, 0x0, 0x0, 0x0}, 0x2020) write$FUSE_INIT(r0, &(0x7f0000004200)={0x50, 0x0, r1, {0x7, 0x1f, 0x0, 0xeea390}}, 0x50) syz_fuse_handle_req(r0, 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", 0x2000, &(0x7f0000008b40)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000340)={0x90, 0x0, 0x0, {0x100000000404, 0x0, 0xc, 0x0, 0x8000000, 0x0, {0x0, 0x0, 0x8, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0xa000, 0x0, 0x0, r2}}}, 0x0, 0x0, 0x0, 0x0, 0x0}) (async) syz_fuse_handle_req(r0, 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", 0x2000, &(0x7f0000008b40)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000340)={0x90, 0x0, 0x0, {0x100000000404, 0x0, 0xc, 0x0, 0x8000000, 0x0, {0x0, 0x0, 0x8, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0xa000, 0x0, 0x0, r2}}}, 0x0, 0x0, 0x0, 0x0, 0x0}) r3 = syz_open_dev$evdev(&(0x7f0000000100), 0x1, 0xa000) ioctl$EVIOCGUNIQ(r3, 0x80404508, &(0x7f00000006c0)=""/138) syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000280)='\xe9\x1fq\x89Y\x1e\x923aK\x00', 0x800700, &(0x7f00000001c0)={[{@journal_ioprio={'journal_ioprio', 0x3d, 0x5}}, {@resgid={'resgid', 0x3d, r2}}, {@noinit_itable}, {@barrier}, {@resgid}, {@debug}, {@noauto_da_alloc}]}, 0x3, 0x467, &(0x7f0000002280)="$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") (async) syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000280)='\xe9\x1fq\x89Y\x1e\x923aK\x00', 0x800700, &(0x7f00000001c0)={[{@journal_ioprio={'journal_ioprio', 0x3d, 0x5}}, {@resgid={'resgid', 0x3d, r2}}, {@noinit_itable}, {@barrier}, {@resgid}, {@debug}, {@noauto_da_alloc}]}, 0x3, 0x467, &(0x7f0000002280)="$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") chdir(&(0x7f0000000140)='./file0\x00') (async) chdir(&(0x7f0000000140)='./file0\x00') openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000180)='net_prio.prioidx\x00', 0x275a, 0x0) (async) openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000180)='net_prio.prioidx\x00', 0x275a, 0x0) mkdir(&(0x7f00000002c0)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x5) (async) mkdir(&(0x7f00000002c0)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x5) creat(&(0x7f0000000580)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x0) mknod$loop(&(0x7f0000000000)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x0, 0x1) symlink(&(0x7f0000000dc0)='./file0\x00', &(0x7f0000000cc0)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00') r4 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000400)='/sys/power/resume', 0x149a82, 0x0) write$cgroup_int(r4, &(0x7f0000000040)=0x1f00, 0x12) [ 57.753193][ T5313] loop0: detected capacity change from 0 to 512 [ 57.820376][ T5313] [EXT4 FS bs=1024, gc=1, bpg=8192, ipg=32, mo=2843c018, mo2=0002] [ 57.823440][ T5313] System zones: 1-12 [ 57.831719][ T5313] EXT4-fs error (device loop0): ext4_xattr_ibody_find:2240: inode #15: comm syz.0.0: corrupted in-inode xattr: invalid ea_ino [ 57.840503][ T5313] EXT4-fs error (device loop0): ext4_orphan_get:1394: comm syz.0.0: couldn't read orphan inode 15 (err -117) [ 57.845845][ T5313] EXT4-fs (loop0): mounted filesystem 00000007-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 57.851438][ T5313] EXT4-fs error (device loop0): ext4_lookup:1813: inode #13: comm syz.0.0: iget: bad extended attribute block 7177 [ 57.862880][ T5312] ================================================================== [ 57.865820][ T5312] BUG: KASAN: use-after-free in ext4_insert_dentry+0x36a/0x6d0 [ 57.868546][ T5312] Write of size 251 at addr ffff888052dc0f14 by task syz.0.0/5312 [ 57.871378][ T5312] [ 57.872222][ T5312] CPU: 0 UID: 0 PID: 5312 Comm: syz.0.0 Not tainted 6.13.0-rc7-syzkaller-00209-g9528d418de4d #0 [ 57.875841][ T5312] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 57.879653][ T5312] Call Trace: [ 57.880981][ T5312] [ 57.882067][ T5312] dump_stack_lvl+0x241/0x360 [ 57.883835][ T5312] ? __pfx_dump_stack_lvl+0x10/0x10 [ 57.885656][ T5312] ? __pfx__printk+0x10/0x10 [ 57.887294][ T5312] ? _printk+0xd5/0x120 [ 57.888866][ T5312] ? __virt_addr_valid+0x183/0x530 [ 57.890755][ T5312] ? __virt_addr_valid+0x183/0x530 [ 57.892567][ T5312] print_report+0x169/0x550 [ 57.894218][ T5312] ? __virt_addr_valid+0x183/0x530 [ 57.896033][ T5312] ? __virt_addr_valid+0x183/0x530 [ 57.897867][ T5312] ? __virt_addr_valid+0x45f/0x530 [ 57.899754][ T5312] ? __phys_addr+0xba/0x170 [ 57.901687][ T5312] ? ext4_insert_dentry+0x36a/0x6d0 [ 57.903657][ T5312] kasan_report+0x143/0x180 [ 57.905458][ T5312] ? ext4_insert_dentry+0x36a/0x6d0 [ 57.907380][ T5312] kasan_check_range+0x282/0x290 [ 57.909228][ T5312] ? ext4_insert_dentry+0x36a/0x6d0 [ 57.911228][ T5312] __asan_memcpy+0x40/0x70 [ 57.912967][ T5312] ext4_insert_dentry+0x36a/0x6d0 [ 57.914806][ T5312] add_dirent_to_buf+0x3d9/0x750 [ 57.916618][ T5312] ? __pfx_add_dirent_to_buf+0x10/0x10 [ 57.918795][ T5312] ? __ext4_handle_dirty_metadata+0x30d/0x820 [ 57.921098][ T5312] make_indexed_dir+0xf98/0x1600 [ 57.922971][ T5312] ? __pfx_make_indexed_dir+0x10/0x10 [ 57.925001][ T5312] ? add_dirent_to_buf+0x398/0x750 [ 57.926823][ T5312] ? __pfx_add_dirent_to_buf+0x10/0x10 [ 57.928749][ T5312] ? __ext4_read_dirblock+0x527/0x890 [ 57.930727][ T5312] ext4_add_entry+0xcf7/0xfa0 [ 57.932445][ T5312] ? __pfx_ext4_add_entry+0x10/0x10 [ 57.934374][ T5312] ext4_add_nondir+0x8d/0x290 [ 57.935996][ T5312] ? ext4_symlink+0x6ce/0xb50 [ 57.937723][ T5312] ext4_symlink+0x920/0xb50 [ 57.939382][ T5312] ? __pfx_ext4_symlink+0x10/0x10 [ 57.941168][ T5312] ? inode_permission+0xff/0x460 [ 57.943042][ T5312] ? bpf_lsm_inode_symlink+0x9/0x10 [ 57.944971][ T5312] ? security_inode_symlink+0xbe/0x330 [ 57.947000][ T5312] vfs_symlink+0x137/0x2e0 [ 57.948530][ T5312] do_symlinkat+0x222/0x3a0 [ 57.950242][ T5312] ? __pfx_do_symlinkat+0x10/0x10 [ 57.952239][ T5312] ? strncpy_from_user+0x152/0x270 [ 57.954173][ T5312] ? getname_flags+0x1e3/0x540 [ 57.956045][ T5312] __x64_sys_symlink+0x7a/0x90 [ 57.957760][ T5312] do_syscall_64+0xf3/0x230 [ 57.959500][ T5312] ? clear_bhb_loop+0x35/0x90 [ 57.961648][ T5312] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 57.963723][ T5312] RIP: 0033:0x7fd27b785d29 [ 57.965384][ T5312] 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 [ 57.972463][ T5312] RSP: 002b:00007fd27c68c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000058 [ 57.975687][ T5312] RAX: ffffffffffffffda RBX: 00007fd27b975fa0 RCX: 00007fd27b785d29 [ 57.978478][ T5312] RDX: 0000000000000000 RSI: 0000000020000cc0 RDI: 0000000020000dc0 [ 57.981478][ T5312] RBP: 00007fd27b801b08 R08: 0000000000000000 R09: 0000000000000000 [ 57.984273][ T5312] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 57.987193][ T5312] R13: 0000000000000000 R14: 00007fd27b975fa0 R15: 00007fffee0a6c08 [ 57.989981][ T5312] [ 57.991149][ T5312] [ 57.992020][ T5312] The buggy address belongs to the physical page: [ 57.994308][ T5312] page: refcount:3 mapcount:0 mapping:ffff888031cd4d78 index:0x3f pfn:0x52dc0 [ 57.997531][ T5312] memcg:ffff888034852000 [ 57.999061][ T5312] aops:def_blk_aops ino:700000 dentry name(?):"" [ 58.001380][ T5312] flags: 0x4fff08000004214(referenced|dirty|workingset|private|node=1|zone=1|lastcpupid=0x7ff) [ 58.005001][ T5312] raw: 04fff08000004214 0000000000000000 dead000000000122 ffff888031cd4d78 [ 58.008125][ T5312] raw: 000000000000003f ffff88805247c2b8 00000003ffffffff ffff888034852000 [ 58.011299][ T5312] page dumped because: kasan: bad access detected [ 58.013557][ T5312] page_owner tracks the page as allocated [ 58.015576][ T5312] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x148c40(GFP_NOFS|__GFP_NOFAIL|__GFP_COMP|__GFP_HARDWALL), pid 5312, tgid 5311 (syz.0.0), ts 57862673084, free_ts 57791693646 [ 58.022160][ T5312] post_alloc_hook+0x1f3/0x230 [ 58.023942][ T5312] get_page_from_freelist+0x365c/0x37a0 [ 58.026049][ T5312] __alloc_pages_noprof+0x292/0x710 [ 58.027912][ T5312] alloc_pages_mpol_noprof+0x3e1/0x780 [ 58.029882][ T5312] folio_alloc_noprof+0x128/0x180 [ 58.031734][ T5312] filemap_alloc_folio_noprof+0xdf/0x500 [ 58.033877][ T5312] __filemap_get_folio+0x41f/0x940 [ 58.035707][ T5312] bdev_getblk+0x1d4/0x670 [ 58.037328][ T5312] ext4_getblk+0x31b/0x880 [ 58.038937][ T5312] ext4_bread+0x2e/0x180 [ 58.040420][ T5312] ext4_append+0x327/0x5c0 [ 58.042108][ T5312] make_indexed_dir+0x523/0x1600 [ 58.044112][ T5312] ext4_add_entry+0xcf7/0xfa0 [ 58.045808][ T5312] ext4_add_nondir+0x8d/0x290 [ 58.047490][ T5312] ext4_symlink+0x920/0xb50 [ 58.049190][ T5312] vfs_symlink+0x137/0x2e0 [ 58.050817][ T5312] page last free pid 5313 tgid 5311 stack trace: [ 58.053032][ T5312] free_unref_page+0xd3f/0x1010 [ 58.054846][ T5312] stack_depot_save_flags+0x7c6/0x940 [ 58.056711][ T5312] kasan_save_track+0x51/0x80 [ 58.058326][ T5312] __kasan_kmalloc+0x98/0xb0 [ 58.059901][ T5312] __kmalloc_cache_noprof+0x243/0x390 [ 58.061826][ T5312] shrinker_alloc+0x5a/0x9d0 [ 58.063362][ T5312] alloc_super+0x6c0/0x9d0 [ 58.064971][ T5312] sget_fc+0x34c/0x9c0 [ 58.066366][ T5312] get_tree_bdev_flags+0x257/0x5c0 [ 58.068149][ T5312] vfs_get_tree+0x90/0x2b0 [ 58.069825][ T5312] do_new_mount+0x2be/0xb40 [ 58.071275][ T5312] __se_sys_mount+0x2d6/0x3c0 [ 58.073002][ T5312] do_syscall_64+0xf3/0x230 [ 58.074862][ T5312] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 58.076996][ T5312] [ 58.077742][ T5312] Memory state around the buggy address: [ 58.079664][ T5312] ffff888052dc0f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 58.082492][ T5312] ffff888052dc0f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 58.085299][ T5312] >ffff888052dc1000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 58.088197][ T5312] ^ [ 58.089643][ T5312] ffff888052dc1080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 58.092768][ T5312] ffff888052dc1100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 58.095612][ T5312] ================================================================== [ 58.101151][ T4660] Bluetooth: hci0: command tx timeout [ 58.115475][ T5312] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 58.118165][ T5312] CPU: 0 UID: 0 PID: 5312 Comm: syz.0.0 Not tainted 6.13.0-rc7-syzkaller-00209-g9528d418de4d #0 [ 58.121892][ T5312] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 58.125638][ T5312] Call Trace: [ 58.126918][ T5312] [ 58.128003][ T5312] dump_stack_lvl+0x241/0x360 [ 58.129742][ T5312] ? __pfx_dump_stack_lvl+0x10/0x10 [ 58.131844][ T5312] ? __pfx__printk+0x10/0x10 [ 58.133568][ T5312] ? preempt_schedule+0xe1/0xf0 [ 58.135385][ T5312] ? vscnprintf+0x5d/0x90 [ 58.136987][ T5312] panic+0x349/0x880 [ 58.138442][ T5312] ? check_panic_on_warn+0x21/0xb0 [ 58.140329][ T5312] ? __pfx_panic+0x10/0x10 [ 58.141959][ T5312] ? _raw_spin_unlock_irqrestore+0x130/0x140 [ 58.144083][ T5312] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 58.146334][ T5312] ? print_report+0x502/0x550 [ 58.148029][ T5312] check_panic_on_warn+0x86/0xb0 [ 58.149890][ T5312] ? ext4_insert_dentry+0x36a/0x6d0 [ 58.151796][ T5312] end_report+0x77/0x160 [ 58.153416][ T5312] kasan_report+0x154/0x180 [ 58.155132][ T5312] ? ext4_insert_dentry+0x36a/0x6d0 [ 58.157060][ T5312] kasan_check_range+0x282/0x290 [ 58.158906][ T5312] ? ext4_insert_dentry+0x36a/0x6d0 [ 58.160776][ T5312] __asan_memcpy+0x40/0x70 [ 58.162433][ T5312] ext4_insert_dentry+0x36a/0x6d0 [ 58.164336][ T5312] add_dirent_to_buf+0x3d9/0x750 [ 58.166140][ T5312] ? __pfx_add_dirent_to_buf+0x10/0x10 [ 58.168135][ T5312] ? __ext4_handle_dirty_metadata+0x30d/0x820 [ 58.170375][ T5312] make_indexed_dir+0xf98/0x1600 [ 58.172218][ T5312] ? __pfx_make_indexed_dir+0x10/0x10 [ 58.174183][ T5312] ? add_dirent_to_buf+0x398/0x750 [ 58.176127][ T5312] ? __pfx_add_dirent_to_buf+0x10/0x10 [ 58.178140][ T5312] ? __ext4_read_dirblock+0x527/0x890 [ 58.180130][ T5312] ext4_add_entry+0xcf7/0xfa0 [ 58.181847][ T5312] ? __pfx_ext4_add_entry+0x10/0x10 [ 58.183800][ T5312] ext4_add_nondir+0x8d/0x290 [ 58.185602][ T5312] ? ext4_symlink+0x6ce/0xb50 [ 58.187380][ T5312] ext4_symlink+0x920/0xb50 [ 58.189107][ T5312] ? __pfx_ext4_symlink+0x10/0x10 [ 58.191053][ T5312] ? inode_permission+0xff/0x460 [ 58.192968][ T5312] ? bpf_lsm_inode_symlink+0x9/0x10 [ 58.194921][ T5312] ? security_inode_symlink+0xbe/0x330 [ 58.197034][ T5312] vfs_symlink+0x137/0x2e0 [ 58.198784][ T5312] do_symlinkat+0x222/0x3a0 [ 58.200566][ T5312] ? __pfx_do_symlinkat+0x10/0x10 [ 58.202445][ T5312] ? strncpy_from_user+0x152/0x270 [ 58.204326][ T5312] ? getname_flags+0x1e3/0x540 [ 58.206157][ T5312] __x64_sys_symlink+0x7a/0x90 [ 58.207933][ T5312] do_syscall_64+0xf3/0x230 [ 58.209329][ T5312] ? clear_bhb_loop+0x35/0x90 [ 58.210800][ T5312] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 58.212957][ T5312] RIP: 0033:0x7fd27b785d29 [ 58.214650][ T5312] 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 [ 58.221644][ T5312] RSP: 002b:00007fd27c68c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000058 [ 58.224435][ T5312] RAX: ffffffffffffffda RBX: 00007fd27b975fa0 RCX: 00007fd27b785d29 [ 58.227090][ T5312] RDX: 0000000000000000 RSI: 0000000020000cc0 RDI: 0000000020000dc0 [ 58.229931][ T5312] RBP: 00007fd27b801b08 R08: 0000000000000000 R09: 0000000000000000 [ 58.232736][ T5312] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 58.235576][ T5312] R13: 0000000000000000 R14: 00007fd27b975fa0 R15: 00007fffee0a6c08 [ 58.238436][ T5312] [ 58.239791][ T5312] Kernel Offset: disabled [ 58.241392][ T5312] Rebooting in 86400 seconds..