Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2024/04/16 | upstream (ToT) | 96fca68c4fbf | C | [report] possible deadlock in filemap_fault |
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Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2024/04/16 | upstream (ToT) | 96fca68c4fbf | C | [report] possible deadlock in filemap_fault |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
linux-5.15 | possible deadlock in filemap_fault | 84 | 235d | 410d | 0/3 | auto-obsoleted due to no activity on 2023/11/17 20:19 | |||
upstream | possible deadlock in filemap_fault mm ntfs3 | C | done | 864 | 3h49m | 544d | 0/26 | upstream: reported C repro on 2022/11/03 22:14 | |
linux-6.1 | possible deadlock in filemap_fault (2) | 14 | 1d07h | 130d | 0/3 | upstream: reported on 2023/12/22 21:26 | |||
linux-6.1 | possible deadlock in filemap_fault | 192 | 237d | 412d | 0/3 | auto-obsoleted due to no activity on 2023/11/15 23:38 |
====================================================== WARNING: possible circular locking dependency detected 5.15.155-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor234/4707 is trying to acquire lock: ffff0000d5dd0b60 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:844 [inline] ffff0000d5dd0b60 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_fault+0x52c/0xf5c mm/filemap.c:3081 but task is already holding lock: ffff0000d238dd18 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline] ffff0000d238dd18 (&mm->mmap_lock){++++}-{3:3}, at: do_page_fault+0x380/0xb60 arch/arm64/mm/fault.c:586 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&mm->mmap_lock){++++}-{3:3}: __might_fault+0xc8/0x128 mm/memory.c:5328 filldir64+0x2bc/0x9e4 fs/readdir.c:335 dir_emit_dot include/linux/fs.h:3678 [inline] hfsplus_readdir+0x398/0xf68 fs/hfsplus/dir.c:159 iterate_dir+0x1f4/0x4e4 __do_sys_getdents64 fs/readdir.c:369 [inline] __se_sys_getdents64 fs/readdir.c:354 [inline] __arm64_sys_getdents64+0x1c4/0x4c4 fs/readdir.c:354 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 -> #2 (&tree->tree_lock){+.+.}-{3:3}: __mutex_lock_common+0x194/0x2154 kernel/locking/mutex.c:596 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xa4/0xf8 kernel/locking/mutex.c:743 hfsplus_file_truncate+0x630/0x9cc fs/hfsplus/extents.c:609 hfsplus_write_failed+0x88/0xa4 fs/hfsplus/inode.c:42 hfsplus_write_begin+0xf4/0xf8 fs/hfsplus/inode.c:57 generic_perform_write+0x24c/0x520 mm/filemap.c:3785 __generic_file_write_iter+0x230/0x454 mm/filemap.c:3912 generic_file_write_iter+0xb4/0x1b8 mm/filemap.c:3944 call_write_iter include/linux/fs.h:2172 [inline] new_sync_write fs/read_write.c:507 [inline] vfs_write+0x87c/0xb3c fs/read_write.c:594 ksys_write+0x15c/0x26c fs/read_write.c:647 __do_sys_write fs/read_write.c:659 [inline] __se_sys_write fs/read_write.c:656 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:656 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 -> #1 (&hip->extents_lock){+.+.}-{3:3}: __mutex_lock_common+0x194/0x2154 kernel/locking/mutex.c:596 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xa4/0xf8 kernel/locking/mutex.c:743 hfsplus_get_block+0x2c4/0x1194 fs/hfsplus/extents.c:260 block_read_full_page+0x2a0/0xc4c fs/buffer.c:2290 hfsplus_readpage+0x28/0x38 fs/hfsplus/inode.c:28 read_pages+0x298/0x420 mm/readahead.c:145 page_cache_ra_unbounded+0x534/0x654 mm/readahead.c:239 do_page_cache_ra+0x100/0x11c mm/readahead.c:269 do_sync_mmap_readahead+0x514/0x6d4 mm/filemap.c:2996 filemap_fault+0x5a4/0xf5c mm/filemap.c:3089 __do_fault+0x120/0x5d0 mm/memory.c:3898 do_shared_fault mm/memory.c:4288 [inline] do_fault mm/memory.c:4366 [inline] handle_pte_fault mm/memory.c:4621 [inline] __handle_mm_fault mm/memory.c:4756 [inline] handle_mm_fault+0x19a8/0x3424 mm/memory.c:4854 __do_page_fault arch/arm64/mm/fault.c:505 [inline] do_page_fault+0x700/0xb60 arch/arm64/mm/fault.c:605 do_translation_fault+0xe8/0x138 arch/arm64/mm/fault.c:686 do_mem_abort+0x70/0x1d8 arch/arm64/mm/fault.c:819 el1_abort+0x3c/0x5c arch/arm64/kernel/entry-common.c:358 el1h_64_sync_handler+0x60/0xac arch/arm64/kernel/entry-common.c:418 el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:579 __arch_copy_to_user+0xbc/0x218 arch/arm64/lib/copy_template.S:111 __do_sys_fcntl fs/fcntl.c:472 [inline] __se_sys_fcntl fs/fcntl.c:457 [inline] __arm64_sys_fcntl+0x110/0x1f8 fs/fcntl.c:457 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 -> #0 (mapping.invalidate_lock#3){.+.+}-{3:3}: check_prev_add kernel/locking/lockdep.c:3053 [inline] check_prevs_add kernel/locking/lockdep.c:3172 [inline] validate_chain kernel/locking/lockdep.c:3788 [inline] __lock_acquire+0x32d4/0x7638 kernel/locking/lockdep.c:5012 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623 down_read+0xc0/0x398 kernel/locking/rwsem.c:1498 filemap_invalidate_lock_shared include/linux/fs.h:844 [inline] filemap_fault+0x52c/0xf5c mm/filemap.c:3081 __do_fault+0x120/0x5d0 mm/memory.c:3898 do_shared_fault mm/memory.c:4288 [inline] do_fault mm/memory.c:4366 [inline] handle_pte_fault mm/memory.c:4621 [inline] __handle_mm_fault mm/memory.c:4756 [inline] handle_mm_fault+0x19a8/0x3424 mm/memory.c:4854 __do_page_fault arch/arm64/mm/fault.c:505 [inline] do_page_fault+0x700/0xb60 arch/arm64/mm/fault.c:605 do_translation_fault+0xe8/0x138 arch/arm64/mm/fault.c:686 do_mem_abort+0x70/0x1d8 arch/arm64/mm/fault.c:819 el0_da+0x94/0x20c arch/arm64/kernel/entry-common.c:494 el0t_64_sync_handler+0xc0/0xe4 arch/arm64/kernel/entry-common.c:629 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 other info that might help us debug this: Chain exists of: mapping.invalidate_lock#3 --> &tree->tree_lock --> &mm->mmap_lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&mm->mmap_lock); lock(&tree->tree_lock); lock(&mm->mmap_lock); lock(mapping.invalidate_lock#3); *** DEADLOCK *** 1 lock held by syz-executor234/4707: #0: ffff0000d238dd18 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline] #0: ffff0000d238dd18 (&mm->mmap_lock){++++}-{3:3}, at: do_page_fault+0x380/0xb60 arch/arm64/mm/fault.c:586 stack backtrace: CPU: 0 PID: 4707 Comm: syz-executor234 Not tainted 5.15.155-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call trace: dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x58 lib/dump_stack.c:113 print_circular_bug+0x150/0x1b8 kernel/locking/lockdep.c:2011 check_noncircular+0x2cc/0x378 kernel/locking/lockdep.c:2133 check_prev_add kernel/locking/lockdep.c:3053 [inline] check_prevs_add kernel/locking/lockdep.c:3172 [inline] validate_chain kernel/locking/lockdep.c:3788 [inline] __lock_acquire+0x32d4/0x7638 kernel/locking/lockdep.c:5012 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623 down_read+0xc0/0x398 kernel/locking/rwsem.c:1498 filemap_invalidate_lock_shared include/linux/fs.h:844 [inline] filemap_fault+0x52c/0xf5c mm/filemap.c:3081 __do_fault+0x120/0x5d0 mm/memory.c:3898 do_shared_fault mm/memory.c:4288 [inline] do_fault mm/memory.c:4366 [inline] handle_pte_fault mm/memory.c:4621 [inline] __handle_mm_fault mm/memory.c:4756 [inline] handle_mm_fault+0x19a8/0x3424 mm/memory.c:4854 __do_page_fault arch/arm64/mm/fault.c:505 [inline] do_page_fault+0x700/0xb60 arch/arm64/mm/fault.c:605 do_translation_fault+0xe8/0x138 arch/arm64/mm/fault.c:686 do_mem_abort+0x70/0x1d8 arch/arm64/mm/fault.c:819 el0_da+0x94/0x20c arch/arm64/kernel/entry-common.c:494 el0t_64_sync_handler+0xc0/0xe4 arch/arm64/kernel/entry-common.c:629 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/04/16 10:31 | linux-5.15.y | fa3df276cd36 | 0d592ce4 | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro] | ci2-linux-5-15-kasan-arm64 | possible deadlock in filemap_fault | |
2024/05/01 02:24 | linux-5.15.y | b925f60c6ee7 | 3ba885bc | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | possible deadlock in filemap_fault | ||
2024/04/29 22:57 | linux-5.15.y | b925f60c6ee7 | f10afd69 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | possible deadlock in filemap_fault | ||
2024/04/16 04:55 | linux-5.15.y | fa3df276cd36 | 0d592ce4 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | possible deadlock in filemap_fault | ||
2024/04/15 15:16 | linux-5.15.y | fa3df276cd36 | b9af7e61 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | possible deadlock in filemap_fault | ||
2024/04/12 05:02 | linux-5.15.y | cdfd0a7f0139 | 27de0a5c | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | possible deadlock in filemap_fault | ||
2024/04/26 14:27 | linux-5.15.y | c52b9710c83d | 059e9963 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-arm64 | possible deadlock in filemap_fault | ||
2024/04/16 05:04 | linux-5.15.y | fa3df276cd36 | 0d592ce4 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-arm64 | possible deadlock in filemap_fault | ||
2024/04/11 05:17 | linux-5.15.y | cdfd0a7f0139 | 33b9e058 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-arm64 | possible deadlock in filemap_fault | ||
2024/04/09 22:34 | linux-5.15.y | 9465fef4ae35 | 171ec371 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-arm64 | possible deadlock in filemap_fault | ||
2024/04/06 04:53 | linux-5.15.y | 9465fef4ae35 | ca620dd8 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-arm64 | possible deadlock in filemap_fault |