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🐞 Open [1164] 🐞 Fixed [4303] 🐞 Invalid [9647] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in ext4_alloc_da_blocks / ext4_da_reserve_space (4) | 10 | 849d | 949d | 0/24 | auto-closed as invalid on 2020/11/07 06:53 | |||
upstream | KCSAN: data-race in ext4_alloc_da_blocks / ext4_da_reserve_space | 2 | 1176d | 1193d | 0/24 | closed as invalid on 2019/11/19 14:44 | |||
upstream | KCSAN: data-race in ext4_alloc_da_blocks / ext4_da_reserve_space (3) | 2 | 972d | 991d | 0/24 | closed as invalid on 2020/06/18 14:24 | |||
upstream | KCSAN: data-race in ext4_alloc_da_blocks / ext4_da_reserve_space (6) | 23 | 566d | 710d | 0/24 | auto-closed as invalid on 2021/08/16 16:28 | |||
upstream | KCSAN: data-race in ext4_alloc_da_blocks / ext4_da_reserve_space (7) | 16 | 415d | 524d | 0/24 | auto-closed as invalid on 2022/01/14 22:09 | |||
upstream | KCSAN: data-race in ext4_alloc_da_blocks / ext4_da_reserve_space (2) | 7 | 1081d | 1146d | 0/24 | auto-closed as invalid on 2020/04/23 17:25 |
================================================================== BUG: KCSAN: data-race in ext4_alloc_da_blocks / ext4_da_reserve_space read-write to 0xffff8880166ada78 of 4 bytes by task 16572 on cpu 1: ext4_da_reserve_space+0x120/0x1f0 fs/ext4/inode.c:1492 ext4_insert_delayed_block fs/ext4/inode.c:1657 [inline] ext4_da_map_blocks fs/ext4/inode.c:1771 [inline] ext4_da_get_block_prep+0x512/0x9a0 fs/ext4/inode.c:1835 ext4_block_write_begin+0x414/0xc00 fs/ext4/inode.c:1077 ext4_da_write_begin+0x50a/0xaf0 fs/ext4/inode.c:3016 generic_perform_write+0x196/0x3a0 mm/filemap.c:3408 ext4_buffered_write_iter+0x2e5/0x3d0 fs/ext4/file.c:270 ext4_file_write_iter+0x45e/0x1090 fs/ext4/file.c:503 call_write_iter include/linux/fs.h:1901 [inline] new_sync_write fs/read_write.c:518 [inline] vfs_write+0x6d4/0x7c0 fs/read_write.c:605 ksys_write+0xce/0x180 fs/read_write.c:658 __do_sys_write fs/read_write.c:670 [inline] __se_sys_write fs/read_write.c:667 [inline] __x64_sys_write+0x3e/0x50 fs/read_write.c:667 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff8880166ada78 of 4 bytes by task 16578 on cpu 0: ext4_alloc_da_blocks+0x1d/0x100 fs/ext4/inode.c:3131 ext4_release_file+0x5b/0x1d0 fs/ext4/file.c:142 __fput+0x24b/0x4e0 fs/file_table.c:280 ____fput+0x11/0x20 fs/file_table.c:313 task_work_run+0x8e/0x110 kernel/task_work.c:140 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop kernel/entry/common.c:174 [inline] exit_to_user_mode_prepare+0x16b/0x1a0 kernel/entry/common.c:201 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline] syscall_exit_to_user_mode+0x20/0x40 kernel/entry/common.c:302 do_syscall_64+0x45/0x80 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 16578 Comm: syz-executor.3 Not tainted 5.11.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================
Manager | Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
ci2-upstream-kcsan-gce | 2021/01/12 17:04 | upstream | a0d54b4f5b21 | 2c1f2513 | .config | console log | report | info |