BUG: sleeping function called from invalid context at include/linux/sched/mm.h:306 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 8979, name: syz-executor.2 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 2 locks held by syz-executor.2/8979: #0: ffff0000ee9c0188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:814 [inline] #0: ffff0000ee9c0188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1709 #1: 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: 8979 Comm: syz-executor.2 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_slow+0x250/0x374 fs/namei.c:1693 lookup_slow+0x60/0x84 fs/namei.c:1710 walk_component+0x280/0x36c fs/namei.c:2005 lookup_last fs/namei.c:2462 [inline] path_lookupat+0x13c/0x3d0 fs/namei.c:2486 filename_lookup+0x1d4/0x4e0 fs/namei.c:2515 user_path_at_empty+0x5c/0x84 fs/namei.c:2924 user_path_at include/linux/namei.h:57 [inline] do_mount fs/namespace.c:3689 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __arm64_sys_mount+0x428/0x594 fs/namespace.c:3875 __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 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 include/linux/pagemap.h:1046 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 8979, name: syz-executor.2 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 2 locks held by syz-executor.2/8979: #0: ffff0000ee9c0188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:814 [inline] #0: ffff0000ee9c0188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1709 #1: 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: 8979 Comm: syz-executor.2 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_slow+0x250/0x374 fs/namei.c:1693 lookup_slow+0x60/0x84 fs/namei.c:1710 walk_component+0x280/0x36c fs/namei.c:2005 lookup_last fs/namei.c:2462 [inline] path_lookupat+0x13c/0x3d0 fs/namei.c:2486 filename_lookup+0x1d4/0x4e0 fs/namei.c:2515 user_path_at_empty+0x5c/0x84 fs/namei.c:2924 user_path_at include/linux/namei.h:57 [inline] do_mount fs/namespace.c:3689 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __arm64_sys_mount+0x428/0x594 fs/namespace.c:3875 __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: 8979, name: syz-executor.2 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 2 locks held by syz-executor.2/8979: #0: ffff0000ee9c0188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:814 [inline] #0: ffff0000ee9c0188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1709 #1: 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: 8979 Comm: syz-executor.2 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_slow+0x250/0x374 fs/namei.c:1693 lookup_slow+0x60/0x84 fs/namei.c:1710 walk_component+0x280/0x36c fs/namei.c:2005 lookup_last fs/namei.c:2462 [inline] path_lookupat+0x13c/0x3d0 fs/namei.c:2486 filename_lookup+0x1d4/0x4e0 fs/namei.c:2515 user_path_at_empty+0x5c/0x84 fs/namei.c:2924 user_path_at include/linux/namei.h:57 [inline] do_mount fs/namespace.c:3689 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __arm64_sys_mount+0x428/0x594 fs/namespace.c:3875 __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: 8979, name: syz-executor.2 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 2 locks held by syz-executor.2/8979: #0: ffff0000ee9c0188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:814 [inline] #0: ffff0000ee9c0188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1709 #1: 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: 8979 Comm: syz-executor.2 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_slow+0x250/0x374 fs/namei.c:1693 lookup_slow+0x60/0x84 fs/namei.c:1710 walk_component+0x280/0x36c fs/namei.c:2005 lookup_last fs/namei.c:2462 [inline] path_lookupat+0x13c/0x3d0 fs/namei.c:2486 filename_lookup+0x1d4/0x4e0 fs/namei.c:2515 user_path_at_empty+0x5c/0x84 fs/namei.c:2924 user_path_at include/linux/namei.h:57 [inline] do_mount fs/namespace.c:3689 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __arm64_sys_mount+0x428/0x594 fs/namespace.c:3875 __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: 8979, name: syz-executor.2 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 2 locks held by syz-executor.2/8979: #0: ffff0000ee9c0188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:814 [inline] #0: ffff0000ee9c0188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1709 #1: 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: 8979 Comm: syz-executor.2 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_slow+0x250/0x374 fs/namei.c:1693 lookup_slow+0x60/0x84 fs/namei.c:1710 walk_component+0x280/0x36c fs/namei.c:2005 lookup_last fs/namei.c:2462 [inline] path_lookupat+0x13c/0x3d0 fs/namei.c:2486 filename_lookup+0x1d4/0x4e0 fs/namei.c:2515 user_path_at_empty+0x5c/0x84 fs/namei.c:2924 user_path_at include/linux/namei.h:57 [inline] do_mount fs/namespace.c:3689 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __arm64_sys_mount+0x428/0x594 fs/namespace.c:3875 __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: 8979, name: syz-executor.2 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 2 locks held by syz-executor.2/8979: #0: ffff0000ee9c0188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:814 [inline] #0: ffff0000ee9c0188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1709 #1: 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: 8979 Comm: syz-executor.2 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_slow+0x250/0x374 fs/namei.c:1693 lookup_slow+0x60/0x84 fs/namei.c:1710 walk_component+0x280/0x36c fs/namei.c:2005 lookup_last fs/namei.c:2462 [inline] path_lookupat+0x13c/0x3d0 fs/namei.c:2486 filename_lookup+0x1d4/0x4e0 fs/namei.c:2515 user_path_at_empty+0x5c/0x84 fs/namei.c:2924 user_path_at include/linux/namei.h:57 [inline] do_mount fs/namespace.c:3689 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __arm64_sys_mount+0x428/0x594 fs/namespace.c:3875 __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: 8979, name: syz-executor.2 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 2 locks held by syz-executor.2/8979: #0: ffff0000ee9c0188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:814 [inline] #0: ffff0000ee9c0188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1709 #1: 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: 8979 Comm: syz-executor.2 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_slow+0x250/0x374 fs/namei.c:1693 lookup_slow+0x60/0x84 fs/namei.c:1710 walk_component+0x280/0x36c fs/namei.c:2005 lookup_last fs/namei.c:2462 [inline] path_lookupat+0x13c/0x3d0 fs/namei.c:2486 filename_lookup+0x1d4/0x4e0 fs/namei.c:2515 user_path_at_empty+0x5c/0x84 fs/namei.c:2924 user_path_at include/linux/namei.h:57 [inline] do_mount fs/namespace.c:3689 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __arm64_sys_mount+0x428/0x594 fs/namespace.c:3875 __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: 8979, name: syz-executor.2 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 2 locks held by syz-executor.2/8979: #0: ffff0000ee9c0188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:814 [inline] #0: ffff0000ee9c0188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1709 #1: 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: 8979 Comm: syz-executor.2 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_slow+0x250/0x374 fs/namei.c:1693 lookup_slow+0x60/0x84 fs/namei.c:1710 walk_component+0x280/0x36c fs/namei.c:2005 lookup_last fs/namei.c:2462 [inline] path_lookupat+0x13c/0x3d0 fs/namei.c:2486 filename_lookup+0x1d4/0x4e0 fs/namei.c:2515 user_path_at_empty+0x5c/0x84 fs/namei.c:2924 user_path_at include/linux/namei.h:57 [inline] do_mount fs/namespace.c:3689 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __arm64_sys_mount+0x428/0x594 fs/namespace.c:3875 __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: 8979, name: syz-executor.2 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 2 locks held by syz-executor.2/8979: #0: ffff0000ee9c0188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:814 [inline] #0: ffff0000ee9c0188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1709 #1: 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: 8979 Comm: syz-executor.2 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_slow+0x250/0x374 fs/namei.c:1693 lookup_slow+0x60/0x84 fs/namei.c:1710 walk_component+0x280/0x36c fs/namei.c:2005 lookup_last fs/namei.c:2462 [inline] path_lookupat+0x13c/0x3d0 fs/namei.c:2486 filename_lookup+0x1d4/0x4e0 fs/namei.c:2515 user_path_at_empty+0x5c/0x84 fs/namei.c:2924 user_path_at include/linux/namei.h:57 [inline] do_mount fs/namespace.c:3689 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __arm64_sys_mount+0x428/0x594 fs/namespace.c:3875 __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: 8979, name: syz-executor.2 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 2 locks held by syz-executor.2/8979: #0: ffff0000ee9c0188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:814 [inline] #0: ffff0000ee9c0188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1709 #1: 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: 8979 Comm: syz-executor.2 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_slow+0x250/0x374 fs/namei.c:1693 lookup_slow+0x60/0x84 fs/namei.c:1710 walk_component+0x280/0x36c fs/namei.c:2005 lookup_last fs/namei.c:2462 [inline] path_lookupat+0x13c/0x3d0 fs/namei.c:2486 filename_lookup+0x1d4/0x4e0 fs/namei.c:2515 user_path_at_empty+0x5c/0x84 fs/namei.c:2924 user_path_at include/linux/namei.h:57 [inline] do_mount fs/namespace.c:3689 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __arm64_sys_mount+0x428/0x594 fs/namespace.c:3875 __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: 8979, name: syz-executor.2 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 2 locks held by syz-executor.2/8979: #0: ffff0000ee9c0188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:814 [inline] #0: ffff0000ee9c0188 (&type->i_mutex_dir_key#20){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1709 #1: 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: 8979 Comm: syz-executor.2 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_slow+0x250/0x374 fs/namei.c:1693 lookup_slow+0x60/0x84 fs/namei.c:1710 walk_component+0x280/0x36c fs/namei.c:2005 lookup_last fs/namei.c:2462 [inline] path_lookupat+0x13c/0x3d0 fs/namei.c:2486 filename_lookup+0x1d4/0x4e0 fs/namei.c:2515 user_path_at_empty+0x5c/0x84 fs/namei.c:2924 user_path_at include/linux/namei.h:57 [inline] do_mount fs/namespace.c:3689 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __arm64_sys_mount+0x428/0x594 fs/namespace.c:3875 __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