Buffer I/O error on dev loop4, logical block 13466417, async page read syz-executor.4: attempt to access beyond end of device loop4: rw=0, sector=16147212, nr_sectors = 2 limit=128 Buffer I/O error on dev loop4, logical block 8073606, async page read BUG: sleeping function called from invalid context at include/linux/sched/mm.h:306 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 6955, name: syz-executor.4 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 3 locks held by syz-executor.4/6955: #0: ffff0000e5908420 (sb_writers#25){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:409 #1: ffff0000e0f606d0 (&type->i_mutex_dir_key#14/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:839 [inline] #1: ffff0000e0f606d0 (&type->i_mutex_dir_key#14/1){+.+.}-{3:3}, at: filename_create+0x204/0x468 fs/namei.c:3895 #2: ffff80008f13c998 (pointers_lock){.+.+}-{2:2}, at: get_block+0x150/0x1384 fs/sysv/itree.c:222 Preemption disabled at: [] get_block+0x150/0x1384 fs/sysv/itree.c:222 CPU: 1 PID: 6955 Comm: syz-executor.4 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:291 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:298 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106 dump_stack+0x1c/0x28 lib/dump_stack.c:113 __might_resched+0x374/0x4d0 kernel/sched/core.c:10176 __might_sleep+0x90/0xe4 kernel/sched/core.c:10105 might_alloc include/linux/sched/mm.h:306 [inline] bdev_getblk+0x94/0x69c fs/buffer.c:1425 __bread_gfp+0xac/0x364 fs/buffer.c:1474 sb_bread include/linux/buffer_head.h:321 [inline] get_branch+0x234/0x55c fs/sysv/itree.c:105 get_block+0x16c/0x1384 fs/sysv/itree.c:223 block_read_full_folio+0x3d4/0xc58 fs/buffer.c:2382 sysv_read_folio+0x28/0x38 fs/sysv/itree.c:468 filemap_read_folio+0x14c/0x39c mm/filemap.c:2324 do_read_cache_folio+0x114/0x548 mm/filemap.c:3703 do_read_cache_page mm/filemap.c:3769 [inline] read_cache_page+0x6c/0x15c mm/filemap.c:3778 read_mapping_page include/linux/pagemap.h:888 [inline] dir_get_page fs/sysv/dir.c:64 [inline] sysv_find_entry+0x174/0x51c fs/sysv/dir.c:157 sysv_inode_by_name+0xa0/0x2c8 fs/sysv/dir.c:374 sysv_lookup+0x74/0xe4 fs/sysv/namei.c:38 lookup_one_qstr_excl+0x108/0x230 fs/namei.c:1608 filename_create+0x230/0x468 fs/namei.c:3896 do_mkdirat+0xac/0x574 fs/namei.c:4141 __do_sys_mkdirat fs/namei.c:4164 [inline] __se_sys_mkdirat fs/namei.c:4162 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4162 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 Buffer I/O error on dev loop4, logical block 3245774, async page read Buffer I/O error on dev loop4, logical block 8834939, async page read BUG: sleeping function called from invalid context at include/linux/sched/mm.h:306 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 6955, name: syz-executor.4 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 3 locks held by syz-executor.4/6955: #0: ffff0000e5908420 (sb_writers#25){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:409 #1: ffff0000e0f606d0 (&type->i_mutex_dir_key#14/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:839 [inline] #1: ffff0000e0f606d0 (&type->i_mutex_dir_key#14/1){+.+.}-{3:3}, at: filename_create+0x204/0x468 fs/namei.c:3895 #2: ffff80008f13c998 (pointers_lock){.+.+}-{2:2}, at: get_block+0x150/0x1384 fs/sysv/itree.c:222 Preemption disabled at: [] get_block+0x150/0x1384 fs/sysv/itree.c:222 CPU: 0 PID: 6955 Comm: syz-executor.4 Tainted: G W 6.8.0-rc7-syzkaller-g707081b61156 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:291 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:298 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106 dump_stack+0x1c/0x28 lib/dump_stack.c:113 __might_resched+0x374/0x4d0 kernel/sched/core.c:10176 __might_sleep+0x90/0xe4 kernel/sched/core.c:10105 might_alloc include/linux/sched/mm.h:306 [inline] bdev_getblk+0x94/0x69c fs/buffer.c:1425 __bread_gfp+0xac/0x364 fs/buffer.c:1474 sb_bread include/linux/buffer_head.h:321 [inline] get_branch+0x234/0x55c fs/sysv/itree.c:105 get_block+0x16c/0x1384 fs/sysv/itree.c:223 block_read_full_folio+0x3d4/0xc58 fs/buffer.c:2382 sysv_read_folio+0x28/0x38 fs/sysv/itree.c:468 filemap_read_folio+0x14c/0x39c mm/filemap.c:2324 do_read_cache_folio+0x114/0x548 mm/filemap.c:3703 do_read_cache_page mm/filemap.c:3769 [inline] read_cache_page+0x6c/0x15c mm/filemap.c:3778 read_mapping_page include/linux/pagemap.h:888 [inline] dir_get_page fs/sysv/dir.c:64 [inline] sysv_find_entry+0x174/0x51c fs/sysv/dir.c:157 sysv_inode_by_name+0xa0/0x2c8 fs/sysv/dir.c:374 sysv_lookup+0x74/0xe4 fs/sysv/namei.c:38 lookup_one_qstr_excl+0x108/0x230 fs/namei.c:1608 filename_create+0x230/0x468 fs/namei.c:3896 do_mkdirat+0xac/0x574 fs/namei.c:4141 __do_sys_mkdirat fs/namei.c:4164 [inline] __se_sys_mkdirat fs/namei.c:4162 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4162 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 BUG: sleeping function called from invalid context at include/linux/sched/mm.h:306 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 6955, name: syz-executor.4 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 3 locks held by syz-executor.4/6955: #0: ffff0000e5908420 (sb_writers#25){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:409 #1: ffff0000e0f606d0 (&type->i_mutex_dir_key#14/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:839 [inline] #1: ffff0000e0f606d0 (&type->i_mutex_dir_key#14/1){+.+.}-{3:3}, at: filename_create+0x204/0x468 fs/namei.c:3895 #2: ffff80008f13c998 (pointers_lock){.+.+}-{2:2}, at: get_block+0x150/0x1384 fs/sysv/itree.c:222 Preemption disabled at: [] get_block+0x150/0x1384 fs/sysv/itree.c:222 CPU: 1 PID: 6955 Comm: syz-executor.4 Tainted: G W 6.8.0-rc7-syzkaller-g707081b61156 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:291 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:298 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106 dump_stack+0x1c/0x28 lib/dump_stack.c:113 __might_resched+0x374/0x4d0 kernel/sched/core.c:10176 __might_sleep+0x90/0xe4 kernel/sched/core.c:10105 might_alloc include/linux/sched/mm.h:306 [inline] bdev_getblk+0x94/0x69c fs/buffer.c:1425 __bread_gfp+0xac/0x364 fs/buffer.c:1474 sb_bread include/linux/buffer_head.h:321 [inline] get_branch+0x234/0x55c fs/sysv/itree.c:105 get_block+0x16c/0x1384 fs/sysv/itree.c:223 block_read_full_folio+0x3d4/0xc58 fs/buffer.c:2382 sysv_read_folio+0x28/0x38 fs/sysv/itree.c:468 filemap_read_folio+0x14c/0x39c mm/filemap.c:2324 do_read_cache_folio+0x114/0x548 mm/filemap.c:3703 do_read_cache_page mm/filemap.c:3769 [inline] read_cache_page+0x6c/0x15c mm/filemap.c:3778 read_mapping_page include/linux/pagemap.h:888 [inline] dir_get_page fs/sysv/dir.c:64 [inline] sysv_find_entry+0x174/0x51c fs/sysv/dir.c:157 sysv_inode_by_name+0xa0/0x2c8 fs/sysv/dir.c:374 sysv_lookup+0x74/0xe4 fs/sysv/namei.c:38 lookup_one_qstr_excl+0x108/0x230 fs/namei.c:1608 filename_create+0x230/0x468 fs/namei.c:3896 do_mkdirat+0xac/0x574 fs/namei.c:4141 __do_sys_mkdirat fs/namei.c:4164 [inline] __se_sys_mkdirat fs/namei.c:4162 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4162 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 BUG: sleeping function called from invalid context at include/linux/sched/mm.h:306 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 6955, name: syz-executor.4 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 3 locks held by syz-executor.4/6955: #0: ffff0000e5908420 (sb_writers#25){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:409 #1: ffff0000e0f606d0 (&type->i_mutex_dir_key#14/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:839 [inline] #1: ffff0000e0f606d0 (&type->i_mutex_dir_key#14/1){+.+.}-{3:3}, at: filename_create+0x204/0x468 fs/namei.c:3895 #2: ffff80008f13c998 (pointers_lock){.+.+}-{2:2}, at: get_block+0x150/0x1384 fs/sysv/itree.c:222 Preemption disabled at: [] get_block+0x150/0x1384 fs/sysv/itree.c:222 CPU: 0 PID: 6955 Comm: syz-executor.4 Tainted: G W 6.8.0-rc7-syzkaller-g707081b61156 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:291 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:298 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106 dump_stack+0x1c/0x28 lib/dump_stack.c:113 __might_resched+0x374/0x4d0 kernel/sched/core.c:10176 __might_sleep+0x90/0xe4 kernel/sched/core.c:10105 might_alloc include/linux/sched/mm.h:306 [inline] bdev_getblk+0x94/0x69c fs/buffer.c:1425 __bread_gfp+0xac/0x364 fs/buffer.c:1474 sb_bread include/linux/buffer_head.h:321 [inline] get_branch+0x234/0x55c fs/sysv/itree.c:105 get_block+0x16c/0x1384 fs/sysv/itree.c:223 block_read_full_folio+0x3d4/0xc58 fs/buffer.c:2382 sysv_read_folio+0x28/0x38 fs/sysv/itree.c:468 filemap_read_folio+0x14c/0x39c mm/filemap.c:2324 do_read_cache_folio+0x114/0x548 mm/filemap.c:3703 do_read_cache_page mm/filemap.c:3769 [inline] read_cache_page+0x6c/0x15c mm/filemap.c:3778 read_mapping_page include/linux/pagemap.h:888 [inline] dir_get_page fs/sysv/dir.c:64 [inline] sysv_find_entry+0x174/0x51c fs/sysv/dir.c:157 sysv_inode_by_name+0xa0/0x2c8 fs/sysv/dir.c:374 sysv_lookup+0x74/0xe4 fs/sysv/namei.c:38 lookup_one_qstr_excl+0x108/0x230 fs/namei.c:1608 filename_create+0x230/0x468 fs/namei.c:3896 do_mkdirat+0xac/0x574 fs/namei.c:4141 __do_sys_mkdirat fs/namei.c:4164 [inline] __se_sys_mkdirat fs/namei.c:4162 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4162 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 BUG: sleeping function called from invalid context at include/linux/pagemap.h:1046 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 6955, name: syz-executor.4 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 3 locks held by syz-executor.4/6955: #0: ffff0000e5908420 (sb_writers#25){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:409 #1: ffff0000e0f606d0 (&type->i_mutex_dir_key#14/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:839 [inline] #1: ffff0000e0f606d0 (&type->i_mutex_dir_key#14/1){+.+.}-{3:3}, at: filename_create+0x204/0x468 fs/namei.c:3895 #2: ffff80008f13c998 (pointers_lock){.+.+}-{2:2}, at: get_block+0x150/0x1384 fs/sysv/itree.c:222 Preemption disabled at: [] get_block+0x150/0x1384 fs/sysv/itree.c:222 CPU: 1 PID: 6955 Comm: syz-executor.4 Tainted: G W 6.8.0-rc7-syzkaller-g707081b61156 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:291 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:298 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106 dump_stack+0x1c/0x28 lib/dump_stack.c:113 __might_resched+0x374/0x4d0 kernel/sched/core.c:10176 __might_sleep+0x90/0xe4 kernel/sched/core.c:10105 folio_lock include/linux/pagemap.h:1046 [inline] __filemap_get_folio+0xbc/0xa60 mm/filemap.c:1865 grow_dev_folio fs/buffer.c:1042 [inline] grow_buffers fs/buffer.c:1108 [inline] __getblk_slow fs/buffer.c:1134 [inline] bdev_getblk+0x1e8/0x69c fs/buffer.c:1429 __bread_gfp+0xac/0x364 fs/buffer.c:1474 sb_bread include/linux/buffer_head.h:321 [inline] get_branch+0x234/0x55c fs/sysv/itree.c:105 get_block+0x16c/0x1384 fs/sysv/itree.c:223 block_read_full_folio+0x3d4/0xc58 fs/buffer.c:2382 sysv_read_folio+0x28/0x38 fs/sysv/itree.c:468 filemap_read_folio+0x14c/0x39c mm/filemap.c:2324 do_read_cache_folio+0x114/0x548 mm/filemap.c:3703 do_read_cache_page mm/filemap.c:3769 [inline] read_cache_page+0x6c/0x15c mm/filemap.c:3778 read_mapping_page include/linux/pagemap.h:888 [inline] dir_get_page fs/sysv/dir.c:64 [inline] sysv_find_entry+0x174/0x51c fs/sysv/dir.c:157 sysv_inode_by_name+0xa0/0x2c8 fs/sysv/dir.c:374 sysv_lookup+0x74/0xe4 fs/sysv/namei.c:38 lookup_one_qstr_excl+0x108/0x230 fs/namei.c:1608 filename_create+0x230/0x468 fs/namei.c:3896 do_mkdirat+0xac/0x574 fs/namei.c:4141 __do_sys_mkdirat fs/namei.c:4164 [inline] __se_sys_mkdirat fs/namei.c:4162 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4162 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 BUG: sleeping function called from invalid context at include/linux/sched/mm.h:306 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 6955, name: syz-executor.4 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 3 locks held by syz-executor.4/6955: #0: ffff0000e5908420 (sb_writers#25){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:409 #1: ffff0000e0f606d0 (&type->i_mutex_dir_key#14/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:839 [inline] #1: ffff0000e0f606d0 (&type->i_mutex_dir_key#14/1){+.+.}-{3:3}, at: filename_create+0x204/0x468 fs/namei.c:3895 #2: ffff80008f13c998 (pointers_lock){.+.+}-{2:2}, at: get_block+0x150/0x1384 fs/sysv/itree.c:222 Preemption disabled at: [] get_block+0x150/0x1384 fs/sysv/itree.c:222 CPU: 1 PID: 6955 Comm: syz-executor.4 Tainted: G W 6.8.0-rc7-syzkaller-g707081b61156 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:291 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:298 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106 dump_stack+0x1c/0x28 lib/dump_stack.c:113 __might_resched+0x374/0x4d0 kernel/sched/core.c:10176 __might_sleep+0x90/0xe4 kernel/sched/core.c:10105 might_alloc include/linux/sched/mm.h:306 [inline] bdev_getblk+0x94/0x69c fs/buffer.c:1425 __bread_gfp+0xac/0x364 fs/buffer.c:1474 sb_bread include/linux/buffer_head.h:321 [inline] get_branch+0x234/0x55c fs/sysv/itree.c:105 get_block+0x16c/0x1384 fs/sysv/itree.c:223 block_read_full_folio+0x3d4/0xc58 fs/buffer.c:2382 sysv_read_folio+0x28/0x38 fs/sysv/itree.c:468 filemap_read_folio+0x14c/0x39c mm/filemap.c:2324 do_read_cache_folio+0x114/0x548 mm/filemap.c:3703 do_read_cache_page mm/filemap.c:3769 [inline] read_cache_page+0x6c/0x15c mm/filemap.c:3778 read_mapping_page include/linux/pagemap.h:888 [inline] dir_get_page fs/sysv/dir.c:64 [inline] sysv_find_entry+0x174/0x51c fs/sysv/dir.c:157 sysv_inode_by_name+0xa0/0x2c8 fs/sysv/dir.c:374 sysv_lookup+0x74/0xe4 fs/sysv/namei.c:38 lookup_one_qstr_excl+0x108/0x230 fs/namei.c:1608 filename_create+0x230/0x468 fs/namei.c:3896 do_mkdirat+0xac/0x574 fs/namei.c:4141 __do_sys_mkdirat fs/namei.c:4164 [inline] __se_sys_mkdirat fs/namei.c:4162 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4162 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 BUG: sleeping function called from invalid context at include/linux/pagemap.h:1046 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 6955, name: syz-executor.4 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 3 locks held by syz-executor.4/6955: #0: ffff0000e5908420 (sb_writers#25){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:409 #1: ffff0000e0f606d0 (&type->i_mutex_dir_key#14/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:839 [inline] #1: ffff0000e0f606d0 (&type->i_mutex_dir_key#14/1){+.+.}-{3:3}, at: filename_create+0x204/0x468 fs/namei.c:3895 #2: ffff80008f13c998 (pointers_lock){.+.+}-{2:2}, at: get_block+0x150/0x1384 fs/sysv/itree.c:222 Preemption disabled at: [] get_block+0x150/0x1384 fs/sysv/itree.c:222 CPU: 1 PID: 6955 Comm: syz-executor.4 Tainted: G W 6.8.0-rc7-syzkaller-g707081b61156 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:291 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:298 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106 dump_stack+0x1c/0x28 lib/dump_stack.c:113 __might_resched+0x374/0x4d0 kernel/sched/core.c:10176 __might_sleep+0x90/0xe4 kernel/sched/core.c:10105 folio_lock include/linux/pagemap.h:1046 [inline] __filemap_get_folio+0xbc/0xa60 mm/filemap.c:1865 grow_dev_folio fs/buffer.c:1042 [inline] grow_buffers fs/buffer.c:1108 [inline] __getblk_slow fs/buffer.c:1134 [inline] bdev_getblk+0x1e8/0x69c fs/buffer.c:1429 __bread_gfp+0xac/0x364 fs/buffer.c:1474 sb_bread include/linux/buffer_head.h:321 [inline] get_branch+0x234/0x55c fs/sysv/itree.c:105 get_block+0x16c/0x1384 fs/sysv/itree.c:223 block_read_full_folio+0x3d4/0xc58 fs/buffer.c:2382 sysv_read_folio+0x28/0x38 fs/sysv/itree.c:468 filemap_read_folio+0x14c/0x39c mm/filemap.c:2324 do_read_cache_folio+0x114/0x548 mm/filemap.c:3703 do_read_cache_page mm/filemap.c:3769 [inline] read_cache_page+0x6c/0x15c mm/filemap.c:3778 read_mapping_page include/linux/pagemap.h:888 [inline] dir_get_page fs/sysv/dir.c:64 [inline] sysv_find_entry+0x174/0x51c fs/sysv/dir.c:157 sysv_inode_by_name+0xa0/0x2c8 fs/sysv/dir.c:374 sysv_lookup+0x74/0xe4 fs/sysv/namei.c:38 lookup_one_qstr_excl+0x108/0x230 fs/namei.c:1608 filename_create+0x230/0x468 fs/namei.c:3896 do_mkdirat+0xac/0x574 fs/namei.c:4141 __do_sys_mkdirat fs/namei.c:4164 [inline] __se_sys_mkdirat fs/namei.c:4162 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4162 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 BUG: sleeping function called from invalid context at include/linux/pagemap.h:1046 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 6955, name: syz-executor.4 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 3 locks held by syz-executor.4/6955: #0: ffff0000e5908420 (sb_writers#25){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:409 #1: ffff0000e0f606d0 (&type->i_mutex_dir_key#14/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:839 [inline] #1: ffff0000e0f606d0 (&type->i_mutex_dir_key#14/1){+.+.}-{3:3}, at: filename_create+0x204/0x468 fs/namei.c:3895 #2: ffff80008f13c998 (pointers_lock){.+.+}-{2:2}, at: get_block+0x150/0x1384 fs/sysv/itree.c:222 Preemption disabled at: [] get_block+0x150/0x1384 fs/sysv/itree.c:222 CPU: 1 PID: 6955 Comm: syz-executor.4 Tainted: G W 6.8.0-rc7-syzkaller-g707081b61156 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:291 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:298 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106 dump_stack+0x1c/0x28 lib/dump_stack.c:113 __might_resched+0x374/0x4d0 kernel/sched/core.c:10176 __might_sleep+0x90/0xe4 kernel/sched/core.c:10105 folio_lock include/linux/pagemap.h:1046 [inline] __filemap_get_folio+0xbc/0xa60 mm/filemap.c:1865 grow_dev_folio fs/buffer.c:1042 [inline] grow_buffers fs/buffer.c:1108 [inline] __getblk_slow fs/buffer.c:1134 [inline] bdev_getblk+0x1e8/0x69c fs/buffer.c:1429 __bread_gfp+0xac/0x364 fs/buffer.c:1474 sb_bread include/linux/buffer_head.h:321 [inline] get_branch+0x234/0x55c fs/sysv/itree.c:105 get_block+0x16c/0x1384 fs/sysv/itree.c:223 block_read_full_folio+0x3d4/0xc58 fs/buffer.c:2382 sysv_read_folio+0x28/0x38 fs/sysv/itree.c:468 filemap_read_folio+0x14c/0x39c mm/filemap.c:2324 do_read_cache_folio+0x114/0x548 mm/filemap.c:3703 do_read_cache_page mm/filemap.c:3769 [inline] read_cache_page+0x6c/0x15c mm/filemap.c:3778 read_mapping_page include/linux/pagemap.h:888 [inline] dir_get_page fs/sysv/dir.c:64 [inline] sysv_find_entry+0x174/0x51c fs/sysv/dir.c:157 sysv_inode_by_name+0xa0/0x2c8 fs/sysv/dir.c:374 sysv_lookup+0x74/0xe4 fs/sysv/namei.c:38 lookup_one_qstr_excl+0x108/0x230 fs/namei.c:1608 filename_create+0x230/0x468 fs/namei.c:3896 do_mkdirat+0xac/0x574 fs/namei.c:4141 __do_sys_mkdirat fs/namei.c:4164 [inline] __se_sys_mkdirat fs/namei.c:4162 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4162 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 BUG: sleeping function called from invalid context at include/linux/pagemap.h:1046 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 6955, name: syz-executor.4 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 3 locks held by syz-executor.4/6955: #0: ffff0000e5908420 (sb_writers#25){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:409 #1: ffff0000e0f606d0 (&type->i_mutex_dir_key#14/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:839 [inline] #1: ffff0000e0f606d0 (&type->i_mutex_dir_key#14/1){+.+.}-{3:3}, at: filename_create+0x204/0x468 fs/namei.c:3895 #2: ffff80008f13c998 (pointers_lock){.+.+}-{2:2}, at: get_block+0x150/0x1384 fs/sysv/itree.c:222 Preemption disabled at: [] get_block+0x150/0x1384 fs/sysv/itree.c:222 CPU: 1 PID: 6955 Comm: syz-executor.4 Tainted: G W 6.8.0-rc7-syzkaller-g707081b61156 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:291 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:298 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106 dump_stack+0x1c/0x28 lib/dump_stack.c:113 __might_resched+0x374/0x4d0 kernel/sched/core.c:10176 __might_sleep+0x90/0xe4 kernel/sched/core.c:10105 folio_lock include/linux/pagemap.h:1046 [inline] __filemap_get_folio+0xbc/0xa60 mm/filemap.c:1865 grow_dev_folio fs/buffer.c:1042 [inline] grow_buffers fs/buffer.c:1108 [inline] __getblk_slow fs/buffer.c:1134 [inline] bdev_getblk+0x1e8/0x69c fs/buffer.c:1429 __bread_gfp+0xac/0x364 fs/buffer.c:1474 sb_bread include/linux/buffer_head.h:321 [inline] get_branch+0x234/0x55c fs/sysv/itree.c:105 get_block+0x16c/0x1384 fs/sysv/itree.c:223 block_read_full_folio+0x3d4/0xc58 fs/buffer.c:2382 sysv_read_folio+0x28/0x38 fs/sysv/itree.c:468 filemap_read_folio+0x14c/0x39c mm/filemap.c:2324 do_read_cache_folio+0x114/0x548 mm/filemap.c:3703 do_read_cache_page mm/filemap.c:3769 [inline] read_cache_page+0x6c/0x15c mm/filemap.c:3778 read_mapping_page include/linux/pagemap.h:888 [inline] dir_get_page fs/sysv/dir.c:64 [inline] sysv_find_entry+0x174/0x51c fs/sysv/dir.c:157 sysv_inode_by_name+0xa0/0x2c8 fs/sysv/dir.c:374 sysv_lookup+0x74/0xe4 fs/sysv/namei.c:38 lookup_one_qstr_excl+0x108/0x230 fs/namei.c:1608 filename_create+0x230/0x468 fs/namei.c:3896 do_mkdirat+0xac/0x574 fs/namei.c:4141 __do_sys_mkdirat fs/namei.c:4164 [inline] __se_sys_mkdirat fs/namei.c:4162 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4162 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 BUG: sleeping function called from invalid context at include/linux/pagemap.h:1046 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 6955, name: syz-executor.4 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 3 locks held by syz-executor.4/6955: #0: ffff0000e5908420 (sb_writers#25){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:409 #1: ffff0000e0f606d0 (&type->i_mutex_dir_key#14/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:839 [inline] #1: ffff0000e0f606d0 (&type->i_mutex_dir_key#14/1){+.+.}-{3:3}, at: filename_create+0x204/0x468 fs/namei.c:3895 #2: ffff80008f13c998 (pointers_lock){.+.+}-{2:2}, at: get_block+0x150/0x1384 fs/sysv/itree.c:222 Preemption disabled at: [] get_block+0x150/0x1384 fs/sysv/itree.c:222 CPU: 1 PID: 6955 Comm: syz-executor.4 Tainted: G W 6.8.0-rc7-syzkaller-g707081b61156 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:291 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:298 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106 dump_stack+0x1c/0x28 lib/dump_stack.c:113 __might_resched+0x374/0x4d0 kernel/sched/core.c:10176 __might_sleep+0x90/0xe4 kernel/sched/core.c:10105 folio_lock include/linux/pagemap.h:1046 [inline] __filemap_get_folio+0xbc/0xa60 mm/filemap.c:1865 grow_dev_folio fs/buffer.c:1042 [inline] grow_buffers fs/buffer.c:1108 [inline] __getblk_slow fs/buffer.c:1134 [inline] bdev_getblk+0x1e8/0x69c fs/buffer.c:1429 __bread_gfp+0xac/0x364 fs/buffer.c:1474 sb_bread include/linux/buffer_head.h:321 [inline] get_branch+0x234/0x55c fs/sysv/itree.c:105 get_block+0x16c/0x1384 fs/sysv/itree.c:223 block_read_full_folio+0x3d4/0xc58 fs/buffer.c:2382 sysv_read_folio+0x28/0x38 fs/sysv/itree.c:468 filemap_read_folio+0x14c/0x39c mm/filemap.c:2324 do_read_cache_folio+0x114/0x548 mm/filemap.c:3703 do_read_cache_page mm/filemap.c:3769 [inline] read_cache_page+0x6c/0x15c mm/filemap.c:3778 read_mapping_page include/linux/pagemap.h:888 [inline] dir_get_page fs/sysv/dir.c:64 [inline] sysv_find_entry+0x174/0x51c fs/sysv/dir.c:157 sysv_inode_by_name+0xa0/0x2c8 fs/sysv/dir.c:374 sysv_lookup+0x74/0xe4 fs/sysv/namei.c:38 lookup_one_qstr_excl+0x108/0x230 fs/namei.c:1608 filename_create+0x230/0x468 fs/namei.c:3896 do_mkdirat+0xac/0x574 fs/namei.c:4141 __do_sys_mkdirat fs/namei.c:4164 [inline] __se_sys_mkdirat fs/namei.c:4162 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4162 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 BUG: sleeping function called from invalid context at include/linux/sched/mm.h:306 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 6955, name: syz-executor.4 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 3 locks held by syz-executor.4/6955: #0: ffff0000e5908420 (sb_writers#25){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:409 #1: ffff0000e0f606d0 (&type->i_mutex_dir_key#14/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:839 [inline] #1: ffff0000e0f606d0 (&type->i_mutex_dir_key#14/1){+.+.}-{3:3}, at: filename_create+0x204/0x468 fs/namei.c:3895