Buffer I/O error on dev loop2, logical block 13466417, async page read syz-executor.2: attempt to access beyond end of device loop2: rw=0, sector=16147212, nr_sectors = 2 limit=128 Buffer I/O error on dev loop2, logical block 8073606, async page read BUG: sleeping function called from invalid context at fs/buffer.c:1437 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 7322, name: syz-executor.2 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 2 locks held by syz-executor.2/7322: #0: ffff88803e952680 (&type->i_mutex_dir_key#10){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:812 [inline] #0: ffff88803e952680 (&type->i_mutex_dir_key#10){.+.+}-{3:3}, at: lookup_slow fs/namei.c:1709 [inline] #0: ffff88803e952680 (&type->i_mutex_dir_key#10){.+.+}-{3:3}, at: walk_component+0x33b/0x5a0 fs/namei.c:2001 #1: ffffffff8cfc76d8 (pointers_lock){.+.+}-{2:2}, at: get_block+0x18f/0x14f0 fs/sysv/itree.c:221 Preemption disabled at: [<0000000000000000>] 0x0 CPU: 1 PID: 7322 Comm: syz-executor.2 Not tainted 6.6.0-rc2-syzkaller-00244-g27bbf45eae9c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106 __might_resched+0x3c3/0x5e0 kernel/sched/core.c:10187 __getblk_gfp fs/buffer.c:1437 [inline] __bread_gfp+0x3f/0x310 fs/buffer.c:1473 sb_bread include/linux/buffer_head.h:326 [inline] get_branch+0x2cb/0x660 fs/sysv/itree.c:104 get_block+0x1ad/0x14f0 fs/sysv/itree.c:222 block_read_full_folio+0x3df/0xae0 fs/buffer.c:2388 filemap_read_folio+0xe9/0x2c0 mm/filemap.c:2382 do_read_cache_folio+0x205/0x540 mm/filemap.c:3715 do_read_cache_page mm/filemap.c:3781 [inline] read_cache_page+0x5b/0x230 mm/filemap.c:3790 read_mapping_page include/linux/pagemap.h:860 [inline] dir_get_page fs/sysv/dir.c:64 [inline] sysv_find_entry+0x1db/0x480 fs/sysv/dir.c:157 sysv_inode_by_name+0x74/0x1c0 fs/sysv/dir.c:374 sysv_lookup fs/sysv/namei.c:38 [inline] sysv_lookup+0x88/0x100 fs/sysv/namei.c:31 __lookup_slow+0x24d/0x450 fs/namei.c:1693 lookup_slow fs/namei.c:1710 [inline] walk_component+0x349/0x5a0 fs/namei.c:2001 link_path_walk.part.0.constprop.0+0x71f/0xce0 fs/namei.c:2328 link_path_walk fs/namei.c:2252 [inline] path_lookupat+0x93/0x770 fs/namei.c:2481 filename_lookup+0x1e7/0x5b0 fs/namei.c:2511 user_path_at_empty+0x42/0x60 fs/namei.c:2910 user_path_at include/linux/namei.h:57 [inline] do_fchownat+0xfe/0x1f0 fs/open.c:808 __do_sys_lchown fs/open.c:839 [inline] __se_sys_lchown fs/open.c:837 [inline] __x64_sys_lchown+0x7e/0xc0 fs/open.c:837 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ff42c67cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff42d2fd0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000005e RAX: ffffffffffffffda RBX: 00007ff42c79bf80 RCX: 00007ff42c67cae9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000340 RBP: 00007ff42c6c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007ff42c79bf80 R15: 00007ffff28886c8 syz-executor.2: attempt to access beyond end of device loop2: rw=0, sector=6491548, nr_sectors = 2 limit=128 Buffer I/O error on dev loop2, logical block 3245774, async page read syz-executor.2: attempt to access beyond end of device loop2: rw=0, sector=17669878, nr_sectors = 2 limit=128 Buffer I/O error on dev loop2, logical block 8834939, async page read BUG: sleeping function called from invalid context at fs/buffer.c:1437 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 7322, name: syz-executor.2 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 2 locks held by syz-executor.2/7322: #0: ffff88803e952680 (&type->i_mutex_dir_key#10){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:812 [inline] #0: ffff88803e952680 (&type->i_mutex_dir_key#10){.+.+}-{3:3}, at: lookup_slow fs/namei.c:1709 [inline] #0: ffff88803e952680 (&type->i_mutex_dir_key#10){.+.+}-{3:3}, at: walk_component+0x33b/0x5a0 fs/namei.c:2001 #1: ffffffff8cfc76d8 (pointers_lock){.+.+}-{2:2}, at: get_block+0x18f/0x14f0 fs/sysv/itree.c:221 Preemption disabled at: [<0000000000000000>] 0x0 CPU: 0 PID: 7322 Comm: syz-executor.2 Tainted: G W 6.6.0-rc2-syzkaller-00244-g27bbf45eae9c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106 __might_resched+0x3c3/0x5e0 kernel/sched/core.c:10187 __getblk_gfp fs/buffer.c:1437 [inline] __bread_gfp+0x3f/0x310 fs/buffer.c:1473 sb_bread include/linux/buffer_head.h:326 [inline] get_branch+0x2cb/0x660 fs/sysv/itree.c:104 get_block+0x1ad/0x14f0 fs/sysv/itree.c:222 block_read_full_folio+0x3df/0xae0 fs/buffer.c:2388 filemap_read_folio+0xe9/0x2c0 mm/filemap.c:2382 do_read_cache_folio+0x205/0x540 mm/filemap.c:3715 do_read_cache_page mm/filemap.c:3781 [inline] read_cache_page+0x5b/0x230 mm/filemap.c:3790 read_mapping_page include/linux/pagemap.h:860 [inline] dir_get_page fs/sysv/dir.c:64 [inline] sysv_find_entry+0x1db/0x480 fs/sysv/dir.c:157 sysv_inode_by_name+0x74/0x1c0 fs/sysv/dir.c:374 sysv_lookup fs/sysv/namei.c:38 [inline] sysv_lookup+0x88/0x100 fs/sysv/namei.c:31 __lookup_slow+0x24d/0x450 fs/namei.c:1693 lookup_slow fs/namei.c:1710 [inline] walk_component+0x349/0x5a0 fs/namei.c:2001 link_path_walk.part.0.constprop.0+0x71f/0xce0 fs/namei.c:2328 link_path_walk fs/namei.c:2252 [inline] path_lookupat+0x93/0x770 fs/namei.c:2481 filename_lookup+0x1e7/0x5b0 fs/namei.c:2511 user_path_at_empty+0x42/0x60 fs/namei.c:2910 user_path_at include/linux/namei.h:57 [inline] do_fchownat+0xfe/0x1f0 fs/open.c:808 __do_sys_lchown fs/open.c:839 [inline] __se_sys_lchown fs/open.c:837 [inline] __x64_sys_lchown+0x7e/0xc0 fs/open.c:837 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ff42c67cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff42d2fd0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000005e RAX: ffffffffffffffda RBX: 00007ff42c79bf80 RCX: 00007ff42c67cae9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000340 RBP: 00007ff42c6c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007ff42c79bf80 R15: 00007ffff28886c8 BUG: sleeping function called from invalid context at fs/buffer.c:1437 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 7322, name: syz-executor.2 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 2 locks held by syz-executor.2/7322: #0: ffff88803e952680 (&type->i_mutex_dir_key#10){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:812 [inline] #0: ffff88803e952680 (&type->i_mutex_dir_key#10){.+.+}-{3:3}, at: lookup_slow fs/namei.c:1709 [inline] #0: ffff88803e952680 (&type->i_mutex_dir_key#10){.+.+}-{3:3}, at: walk_component+0x33b/0x5a0 fs/namei.c:2001 #1: ffffffff8cfc76d8 (pointers_lock){.+.+}-{2:2}, at: get_block+0x18f/0x14f0 fs/sysv/itree.c:221 Preemption disabled at: [<0000000000000000>] 0x0 CPU: 1 PID: 7322 Comm: syz-executor.2 Tainted: G W 6.6.0-rc2-syzkaller-00244-g27bbf45eae9c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106 __might_resched+0x3c3/0x5e0 kernel/sched/core.c:10187 __getblk_gfp fs/buffer.c:1437 [inline] __bread_gfp+0x3f/0x310 fs/buffer.c:1473 sb_bread include/linux/buffer_head.h:326 [inline] get_branch+0x2cb/0x660 fs/sysv/itree.c:104 get_block+0x1ad/0x14f0 fs/sysv/itree.c:222 block_read_full_folio+0x3df/0xae0 fs/buffer.c:2388 filemap_read_folio+0xe9/0x2c0 mm/filemap.c:2382 do_read_cache_folio+0x205/0x540 mm/filemap.c:3715 do_read_cache_page mm/filemap.c:3781 [inline] read_cache_page+0x5b/0x230 mm/filemap.c:3790 read_mapping_page include/linux/pagemap.h:860 [inline] dir_get_page fs/sysv/dir.c:64 [inline] sysv_find_entry+0x1db/0x480 fs/sysv/dir.c:157 sysv_inode_by_name+0x74/0x1c0 fs/sysv/dir.c:374 sysv_lookup fs/sysv/namei.c:38 [inline] sysv_lookup+0x88/0x100 fs/sysv/namei.c:31 __lookup_slow+0x24d/0x450 fs/namei.c:1693 lookup_slow fs/namei.c:1710 [inline] walk_component+0x349/0x5a0 fs/namei.c:2001 link_path_walk.part.0.constprop.0+0x71f/0xce0 fs/namei.c:2328 link_path_walk fs/namei.c:2252 [inline] path_lookupat+0x93/0x770 fs/namei.c:2481 filename_lookup+0x1e7/0x5b0 fs/namei.c:2511 user_path_at_empty+0x42/0x60 fs/namei.c:2910 user_path_at include/linux/namei.h:57 [inline] do_fchownat+0xfe/0x1f0 fs/open.c:808 __do_sys_lchown fs/open.c:839 [inline] __se_sys_lchown fs/open.c:837 [inline] __x64_sys_lchown+0x7e/0xc0 fs/open.c:837 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ff42c67cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff42d2fd0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000005e RAX: ffffffffffffffda RBX: 00007ff42c79bf80 RCX: 00007ff42c67cae9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000340 RBP: 00007ff42c6c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007ff42c79bf80 R15: 00007ffff28886c8 BUG: sleeping function called from invalid context at fs/buffer.c:1437 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 7322, name: syz-executor.2 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 2 locks held by syz-executor.2/7322: #0: ffff88803e952680 (&type->i_mutex_dir_key#10){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:812 [inline] (&type->i_mutex_dir_key#10){.+.+}-{3:3}, at: lookup_slow fs/namei.c:1709 [inline] (&type->i_mutex_dir_key#10){.+.+}-{3:3}, at: walk_component+0x33b/0x5a0 fs/namei.c:2001 #1: ffffffff8cfc76d8 (pointers_lock){.+.+}-{2:2}, at: get_block+0x18f/0x14f0 fs/sysv/itree.c:221 Preemption disabled at: [<0000000000000000>] 0x0 CPU: 1 PID: 7322 Comm: syz-executor.2 Tainted: G W 6.6.0-rc2-syzkaller-00244-g27bbf45eae9c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106 __might_resched+0x3c3/0x5e0 kernel/sched/core.c:10187 __getblk_gfp fs/buffer.c:1437 [inline] __bread_gfp+0x3f/0x310 fs/buffer.c:1473 sb_bread include/linux/buffer_head.h:326 [inline] get_branch+0x2cb/0x660 fs/sysv/itree.c:104 get_block+0x1ad/0x14f0 fs/sysv/itree.c:222 block_read_full_folio+0x3df/0xae0 fs/buffer.c:2388 filemap_read_folio+0xe9/0x2c0 mm/filemap.c:2382 do_read_cache_folio+0x205/0x540 mm/filemap.c:3715 do_read_cache_page mm/filemap.c:3781 [inline] read_cache_page+0x5b/0x230 mm/filemap.c:3790 read_mapping_page include/linux/pagemap.h:860 [inline] dir_get_page fs/sysv/dir.c:64 [inline] sysv_find_entry+0x1db/0x480 fs/sysv/dir.c:157 sysv_inode_by_name+0x74/0x1c0 fs/sysv/dir.c:374 sysv_lookup fs/sysv/namei.c:38 [inline] sysv_lookup+0x88/0x100 fs/sysv/namei.c:31 __lookup_slow+0x24d/0x450 fs/namei.c:1693 lookup_slow fs/namei.c:1710 [inline] walk_component+0x349/0x5a0 fs/namei.c:2001 link_path_walk.part.0.constprop.0+0x71f/0xce0 fs/namei.c:2328 link_path_walk fs/namei.c:2252 [inline] path_lookupat+0x93/0x770 fs/namei.c:2481 filename_lookup+0x1e7/0x5b0 fs/namei.c:2511 user_path_at_empty+0x42/0x60 fs/namei.c:2910 user_path_at include/linux/namei.h:57 [inline] do_fchownat+0xfe/0x1f0 fs/open.c:808 __do_sys_lchown fs/open.c:839 [inline] __se_sys_lchown fs/open.c:837 [inline] __x64_sys_lchown+0x7e/0xc0 fs/open.c:837 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ff42c67cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff42d2fd0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000005e RAX: ffffffffffffffda RBX: 00007ff42c79bf80 RCX: 00007ff42c67cae9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000340 RBP: 00007ff42c6c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007ff42c79bf80 R15: 00007ffff28886c8 BUG: sleeping function called from invalid context at fs/buffer.c:1437 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 7322, name: syz-executor.2 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 2 locks held by syz-executor.2/7322: #0: ffff88803e952680 (&type->i_mutex_dir_key #10){.+.+}-{3:3} , at: inode_lock_shared include/linux/fs.h:812 [inline] , at: lookup_slow fs/namei.c:1709 [inline] , at: walk_component+0x33b/0x5a0 fs/namei.c:2001 #1: ffffffff8cfc76d8 (pointers_lock ){.+.+}-{2:2} , at: get_block+0x18f/0x14f0 fs/sysv/itree.c:221 Preemption disabled at: [<0000000000000000>] 0x0 CPU: 0 PID: 7322 Comm: syz-executor.2 Tainted: G W 6.6.0-rc2-syzkaller-00244-g27bbf45eae9c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106 __might_resched+0x3c3/0x5e0 kernel/sched/core.c:10187 __getblk_gfp fs/buffer.c:1437 [inline] __bread_gfp+0x3f/0x310 fs/buffer.c:1473 sb_bread include/linux/buffer_head.h:326 [inline] get_branch+0x2cb/0x660 fs/sysv/itree.c:104 get_block+0x1ad/0x14f0 fs/sysv/itree.c:222 block_read_full_folio+0x3df/0xae0 fs/buffer.c:2388 filemap_read_folio+0xe9/0x2c0 mm/filemap.c:2382 do_read_cache_folio+0x205/0x540 mm/filemap.c:3715 do_read_cache_page mm/filemap.c:3781 [inline] read_cache_page+0x5b/0x230 mm/filemap.c:3790 read_mapping_page include/linux/pagemap.h:860 [inline] dir_get_page fs/sysv/dir.c:64 [inline] sysv_find_entry+0x1db/0x480 fs/sysv/dir.c:157 sysv_inode_by_name+0x74/0x1c0 fs/sysv/dir.c:374 sysv_lookup fs/sysv/namei.c:38 [inline] sysv_lookup+0x88/0x100 fs/sysv/namei.c:31 __lookup_slow+0x24d/0x450 fs/namei.c:1693 lookup_slow fs/namei.c:1710 [inline] walk_component+0x349/0x5a0 fs/namei.c:2001 link_path_walk.part.0.constprop.0+0x71f/0xce0 fs/namei.c:2328 link_path_walk fs/namei.c:2252 [inline] path_lookupat+0x93/0x770 fs/namei.c:2481 filename_lookup+0x1e7/0x5b0 fs/namei.c:2511 user_path_at_empty+0x42/0x60 fs/namei.c:2910 user_path_at include/linux/namei.h:57 [inline] do_fchownat+0xfe/0x1f0 fs/open.c:808 __do_sys_lchown fs/open.c:839 [inline] __se_sys_lchown fs/open.c:837 [inline] __x64_sys_lchown+0x7e/0xc0 fs/open.c:837 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ff42c67cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff42d2fd0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000005e RAX: ffffffffffffffda RBX: 00007ff42c79bf80 RCX: 00007ff42c67cae9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000340 RBP: 00007ff42c6c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007ff42c79bf80 R15: 00007ffff28886c8 BUG: sleeping function called from invalid context at fs/buffer.c:1437 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 7322, name: syz-executor.2 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 2 locks held by syz-executor.2/7322: #0: ffff88803e952680 (&type->i_mutex_dir_key#10){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:812 [inline] #0: ffff88803e952680 (&type->i_mutex_dir_key#10){.+.+}-{3:3}, at: lookup_slow fs/namei.c:1709 [inline] #0: ffff88803e952680 (&type->i_mutex_dir_key#10){.+.+}-{3:3}, at: walk_component+0x33b/0x5a0 fs/namei.c:2001 #1: ffffffff8cfc76d8 (pointers_lock){.+.+}-{2:2}, at: get_block+0x18f/0x14f0 fs/sysv/itree.c:221 Preemption disabled at: [<0000000000000000>] 0x0 CPU: 0 PID: 7322 Comm: syz-executor.2 Tainted: G W 6.6.0-rc2-syzkaller-00244-g27bbf45eae9c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106 __might_resched+0x3c3/0x5e0 kernel/sched/core.c:10187 __getblk_gfp fs/buffer.c:1437 [inline] __bread_gfp+0x3f/0x310 fs/buffer.c:1473 sb_bread include/linux/buffer_head.h:326 [inline] get_branch+0x2cb/0x660 fs/sysv/itree.c:104 get_block+0x1ad/0x14f0 fs/sysv/itree.c:222 block_read_full_folio+0x3df/0xae0 fs/buffer.c:2388 filemap_read_folio+0xe9/0x2c0 mm/filemap.c:2382 do_read_cache_folio+0x205/0x540 mm/filemap.c:3715 do_read_cache_page mm/filemap.c:3781 [inline] read_cache_page+0x5b/0x230 mm/filemap.c:3790 read_mapping_page include/linux/pagemap.h:860 [inline] dir_get_page fs/sysv/dir.c:64 [inline] sysv_find_entry+0x1db/0x480 fs/sysv/dir.c:157 sysv_inode_by_name+0x74/0x1c0 fs/sysv/dir.c:374 sysv_lookup fs/sysv/namei.c:38 [inline] sysv_lookup+0x88/0x100 fs/sysv/namei.c:31 __lookup_slow+0x24d/0x450 fs/namei.c:1693 lookup_slow fs/namei.c:1710 [inline] walk_component+0x349/0x5a0 fs/namei.c:2001 link_path_walk.part.0.constprop.0+0x71f/0xce0 fs/namei.c:2328 link_path_walk fs/namei.c:2252 [inline] path_lookupat+0x93/0x770 fs/namei.c:2481 filename_lookup+0x1e7/0x5b0 fs/namei.c:2511 user_path_at_empty+0x42/0x60 fs/namei.c:2910 user_path_at include/linux/namei.h:57 [inline] do_fchownat+0xfe/0x1f0 fs/open.c:808 __do_sys_lchown fs/open.c:839 [inline] __se_sys_lchown fs/open.c:837 [inline] __x64_sys_lchown+0x7e/0xc0 fs/open.c:837 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ff42c67cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff42d2fd0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000005e RAX: ffffffffffffffda RBX: 00007ff42c79bf80 RCX: 00007ff42c67cae9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000340 RBP: 00007ff42c6c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007ff42c79bf80 R15: 00007ffff28886c8 BUG: sleeping function called from invalid context at fs/buffer.c:1437 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 7322, name: syz-executor.2 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 2 locks held by syz-executor.2/7322: #0: ffff88803e952680 (&type->i_mutex_dir_key#10){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:812 [inline] #0: ffff88803e952680 (&type->i_mutex_dir_key#10){.+.+}-{3:3}, at: lookup_slow fs/namei.c:1709 [inline] #0: ffff88803e952680 (&type->i_mutex_dir_key#10){.+.+}-{3:3}, at: walk_component+0x33b/0x5a0 fs/namei.c:2001 #1: ffffffff8cfc76d8 (pointers_lock){.+.+}-{2:2}, at: get_block+0x18f/0x14f0 fs/sysv/itree.c:221 Preemption disabled at: [<0000000000000000>] 0x0 CPU: 1 PID: 7322 Comm: syz-executor.2 Tainted: G W 6.6.0-rc2-syzkaller-00244-g27bbf45eae9c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106 __might_resched+0x3c3/0x5e0 kernel/sched/core.c:10187 __getblk_gfp fs/buffer.c:1437 [inline] __bread_gfp+0x3f/0x310 fs/buffer.c:1473 sb_bread include/linux/buffer_head.h:326 [inline] get_branch+0x2cb/0x660 fs/sysv/itree.c:104 get_block+0x1ad/0x14f0 fs/sysv/itree.c:222 block_read_full_folio+0x3df/0xae0 fs/buffer.c:2388 filemap_read_folio+0xe9/0x2c0 mm/filemap.c:2382 do_read_cache_folio+0x205/0x540 mm/filemap.c:3715 do_read_cache_page mm/filemap.c:3781 [inline] read_cache_page+0x5b/0x230 mm/filemap.c:3790 read_mapping_page include/linux/pagemap.h:860 [inline] dir_get_page fs/sysv/dir.c:64 [inline] sysv_find_entry+0x1db/0x480 fs/sysv/dir.c:157 sysv_inode_by_name+0x74/0x1c0 fs/sysv/dir.c:374 sysv_lookup fs/sysv/namei.c:38 [inline] sysv_lookup+0x88/0x100 fs/sysv/namei.c:31 __lookup_slow+0x24d/0x450 fs/namei.c:1693 lookup_slow fs/namei.c:1710 [inline] walk_component+0x349/0x5a0 fs/namei.c:2001 link_path_walk.part.0.constprop.0+0x71f/0xce0 fs/namei.c:2328 link_path_walk fs/namei.c:2252 [inline] path_lookupat+0x93/0x770 fs/namei.c:2481 filename_lookup+0x1e7/0x5b0 fs/namei.c:2511 user_path_at_empty+0x42/0x60 fs/namei.c:2910 user_path_at include/linux/namei.h:57 [inline] do_fchownat+0xfe/0x1f0 fs/open.c:808 __do_sys_lchown fs/open.c:839 [inline] __se_sys_lchown fs/open.c:837 [inline] __x64_sys_lchown+0x7e/0xc0 fs/open.c:837 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ff42c67cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff42d2fd0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000005e RAX: ffffffffffffffda RBX: 00007ff42c79bf80 RCX: 00007ff42c67cae9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000340 RBP: 00007ff42c6c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007ff42c79bf80 R15: 00007ffff28886c8 BUG: sleeping function called from invalid context at fs/buffer.c:1437 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 7322, name: syz-executor.2 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 2 locks held by syz-executor.2/7322: #0: ffff88803e952680 (&type->i_mutex_dir_key#10){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:812 [inline] #0: ffff88803e952680 (&type->i_mutex_dir_key#10){.+.+}-{3:3}, at: lookup_slow fs/namei.c:1709 [inline] #0: ffff88803e952680 (&type->i_mutex_dir_key#10){.+.+}-{3:3}, at: walk_component+0x33b/0x5a0 fs/namei.c:2001 #1: ffffffff8cfc76d8 (pointers_lock){.+.+}-{2:2}, at: get_block+0x18f/0x14f0 fs/sysv/itree.c:221 Preemption disabled at: [<0000000000000000>] 0x0 CPU: 0 PID: 7322 Comm: syz-executor.2 Tainted: G W 6.6.0-rc2-syzkaller-00244-g27bbf45eae9c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106 __might_resched+0x3c3/0x5e0 kernel/sched/core.c:10187 __getblk_gfp fs/buffer.c:1437 [inline] __bread_gfp+0x3f/0x310 fs/buffer.c:1473 sb_bread include/linux/buffer_head.h:326 [inline] get_branch+0x2cb/0x660 fs/sysv/itree.c:104 get_block+0x1ad/0x14f0 fs/sysv/itree.c:222 block_read_full_folio+0x3df/0xae0 fs/buffer.c:2388 filemap_read_folio+0xe9/0x2c0 mm/filemap.c:2382 do_read_cache_folio+0x205/0x540 mm/filemap.c:3715 do_read_cache_page mm/filemap.c:3781 [inline] read_cache_page+0x5b/0x230 mm/filemap.c:3790 read_mapping_page include/linux/pagemap.h:860 [inline] dir_get_page fs/sysv/dir.c:64 [inline] sysv_find_entry+0x1db/0x480 fs/sysv/dir.c:157 sysv_inode_by_name+0x74/0x1c0 fs/sysv/dir.c:374 sysv_lookup fs/sysv/namei.c:38 [inline] sysv_lookup+0x88/0x100 fs/sysv/namei.c:31 __lookup_slow+0x24d/0x450 fs/namei.c:1693 lookup_slow fs/namei.c:1710 [inline] walk_component+0x349/0x5a0 fs/namei.c:2001 link_path_walk.part.0.constprop.0+0x71f/0xce0 fs/namei.c:2328 link_path_walk fs/namei.c:2252 [inline] path_lookupat+0x93/0x770 fs/namei.c:2481 filename_lookup+0x1e7/0x5b0 fs/namei.c:2511 user_path_at_empty+0x42/0x60 fs/namei.c:2910 user_path_at include/linux/namei.h:57 [inline] do_fchownat+0xfe/0x1f0 fs/open.c:808 __do_sys_lchown fs/open.c:839 [inline] __se_sys_lchown fs/open.c:837 [inline] __x64_sys_lchown+0x7e/0xc0 fs/open.c:837 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ff42c67cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff42d2fd0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000005e RAX: ffffffffffffffda RBX: 00007ff42c79bf80 RCX: 00007ff42c67cae9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000340 RBP: 00007ff42c6c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007ff42c79bf80 R15: 00007ffff28886c8 BUG: sleeping function called from invalid context at fs/buffer.c:1437 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 7322, name: syz-executor.2 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 2 locks held by syz-executor.2/7322: #0: ffff88803e952680 (&type->i_mutex_dir_key#10){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:812 [inline] #0: ffff88803e952680 (&type->i_mutex_dir_key#10){.+.+}-{3:3}, at: lookup_slow fs/namei.c:1709 [inline] #0: ffff88803e952680 (&type->i_mutex_dir_key#10){.+.+}-{3:3}, at: walk_component+0x33b/0x5a0 fs/namei.c:2001 #1: ffffffff8cfc76d8 (pointers_lock){.+.+}-{2:2}, at: get_block+0x18f/0x14f0 fs/sysv/itree.c:221 Preemption disabled at: [<0000000000000000>] 0x0 CPU: 1 PID: 7322 Comm: syz-executor.2 Tainted: G W 6.6.0-rc2-syzkaller-00244-g27bbf45eae9c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106 __might_resched+0x3c3/0x5e0 kernel/sched/core.c:10187 __getblk_gfp fs/buffer.c:1437 [inline] __bread_gfp+0x3f/0x310 fs/buffer.c:1473 sb_bread include/linux/buffer_head.h:326 [inline] get_branch+0x2cb/0x660 fs/sysv/itree.c:104 get_block+0x1ad/0x14f0 fs/sysv/itree.c:222 block_read_full_folio+0x3df/0xae0 fs/buffer.c:2388 filemap_read_folio+0xe9/0x2c0 mm/filemap.c:2382 do_read_cache_folio+0x205/0x540 mm/filemap.c:3715 do_read_cache_page mm/filemap.c:3781 [inline] read_cache_page+0x5b/0x230 mm/filemap.c:3790 read_mapping_page include/linux/pagemap.h:860 [inline] dir_get_page fs/sysv/dir.c:64 [inline] sysv_find_entry+0x1db/0x480 fs/sysv/dir.c:157 sysv_inode_by_name+0x74/0x1c0 fs/sysv/dir.c:374 sysv_lookup fs/sysv/namei.c:38 [inline] sysv_lookup+0x88/0x100 fs/sysv/namei.c:31 __lookup_slow+0x24d/0x450 fs/namei.c:1693 lookup_slow fs/namei.c:1710 [inline] walk_component+0x349/0x5a0 fs/namei.c:2001 link_path_walk.part.0.constprop.0+0x71f/0xce0 fs/namei.c:2328 link_path_walk fs/namei.c:2252 [inline] path_lookupat+0x93/0x770 fs/namei.c:2481 filename_lookup+0x1e7/0x5b0 fs/namei.c:2511 user_path_at_empty+0x42/0x60 fs/namei.c:2910 user_path_at include/linux/namei.h:57 [inline] do_fchownat+0xfe/0x1f0 fs/open.c:808 __do_sys_lchown fs/open.c:839 [inline] __se_sys_lchown fs/open.c:837 [inline] __x64_sys_lchown+0x7e/0xc0 fs/open.c:837 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ff42c67cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff42d2fd0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000005e RAX: ffffffffffffffda RBX: 00007ff42c79bf80 RCX: 00007ff42c67cae9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000340 RBP: 00007ff42c6c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007ff42c79bf80 R15: 00007ffff28886c8 BUG: sleeping function called from invalid context at include/linux/pagemap.h:1040 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 7322, name: syz-executor.2 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 2 locks held by syz-executor.2/7322: #0: ffff88803e952680 (&type->i_mutex_dir_key#10){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:812 [inline] #0: ffff88803e952680 (&type->i_mutex_dir_key#10){.+.+}-{3:3}, at: lookup_slow fs/namei.c:1709 [inline] #0: ffff88803e952680 (&type->i_mutex_dir_key#10){.+.+}-{3:3}, at: walk_component+0x33b/0x5a0 fs/namei.c:2001 #1: ffffffff8cfc76d8 (pointers_lock){.+.+}-{2:2}, at: get_block+0x18f/0x14f0 fs/sysv/itree.c:221 Preemption disabled at: [<0000000000000000>] 0x0 CPU: 1 PID: 7322 Comm: syz-executor.2 Tainted: G W 6.6.0-rc2-syzkaller-00244-g27bbf45eae9c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106 __might_resched+0x3c3/0x5e0 kernel/sched/core.c:10187 folio_lock include/linux/pagemap.h:1040 [inline] __filemap_get_folio+0x64c/0xbc0 mm/filemap.c:1882 grow_dev_page fs/buffer.c:1058 [inline] grow_buffers fs/buffer.c:1118 [inline] __getblk_slow+0x1fb/0x720 fs/buffer.c:1145 __getblk_gfp fs/buffer.c:1439 [inline] __bread_gfp+0x215/0x310 fs/buffer.c:1473 sb_bread include/linux/buffer_head.h:326 [inline] get_branch+0x2cb/0x660 fs/sysv/itree.c:104 get_block+0x1ad/0x14f0 fs/sysv/itree.c:222 block_read_full_folio+0x3df/0xae0 fs/buffer.c:2388 filemap_read_folio+0xe9/0x2c0 mm/filemap.c:2382 do_read_cache_folio+0x205/0x540 mm/filemap.c:3715 do_read_cache_page mm/filemap.c:3781 [inline] read_cache_page+0x5b/0x230 mm/filemap.c:3790 read_mapping_page include/linux/pagemap.h:860 [inline] dir_get_page fs/sysv/dir.c:64 [inline] sysv_find_entry+0x1db/0x480 fs/sysv/dir.c:157 sysv_inode_by_name+0x74/0x1c0 fs/sysv/dir.c:374 sysv_lookup fs/sysv/namei.c:38 [inline] sysv_lookup+0x88/0x100 fs/sysv/namei.c:31 __lookup_slow+0x24d/0x450 fs/namei.c:1693 lookup_slow fs/namei.c:1710 [inline] walk_component+0x349/0x5a0 fs/namei.c:2001 link_path_walk.part.0.constprop.0+0x71f/0xce0 fs/namei.c:2328 link_path_walk fs/namei.c:2252 [inline] path_lookupat+0x93/0x770 fs/namei.c:2481 filename_lookup+0x1e7/0x5b0 fs/namei.c:2511 user_path_at_empty+0x42/0x60 fs/namei.c:2910 user_path_at include/linux/namei.h:57 [inline] do_fchownat+0xfe/0x1f0 fs/open.c:808 __do_sys_lchown fs/open.c:839 [inline] __se_sys_lchown fs/open.c:837 [inline] __x64_sys_lchown+0x7e/0xc0 fs/open.c:837 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ff42c67cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff42d2fd0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000005e RAX: ffffffffffffffda RBX: 00007ff42c79bf80 RCX: 00007ff42c67cae9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000340 RBP: 00007ff42c6c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007ff42c79bf80 R15: 00007ffff28886c8