| Kernel | Title | Rank 🛈 | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|---|
| upstream | KCSAN: data-race in ext4_file_write_iter / ext4_handle_inode_extension ext4 | 6 | 1 | 1971d | 1971d | 0/29 | auto-closed as invalid on 2020/05/04 10:14 |
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| Kernel | Title | Rank 🛈 | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|---|
| upstream | KCSAN: data-race in ext4_file_write_iter / ext4_handle_inode_extension ext4 | 6 | 1 | 1971d | 1971d | 0/29 | auto-closed as invalid on 2020/05/04 10:14 |
================================================================== BUG: KCSAN: data-race in ext4_file_write_iter / ext4_handle_inode_extension write to 0xffff888120757178 of 8 bytes by task 3766 on cpu 0: i_size_write include/linux/fs.h:876 [inline] ext4_update_inode_size fs/ext4/ext4.h:3109 [inline] ext4_handle_inode_extension+0x214/0x530 fs/ext4/file.c:331 ext4_dio_write_iter fs/ext4/file.c:551 [inline] ext4_file_write_iter+0xdb3/0x1000 fs/ext4/file.c:655 call_write_iter include/linux/fs.h:1882 [inline] do_iter_readv_writev+0x32e/0x3d0 fs/read_write.c:713 do_iter_write+0x112/0x4b0 fs/read_write.c:1018 vfs_iter_write+0x4c/0x70 fs/read_write.c:1059 iter_file_splice_write+0x41a/0x770 fs/splice.c:750 do_splice_from fs/splice.c:846 [inline] direct_splice_actor+0x95/0x160 fs/splice.c:1016 splice_direct_to_actor+0x365/0x660 fs/splice.c:971 do_splice_direct+0xf2/0x170 fs/splice.c:1059 do_sendfile+0x56a/0xba0 fs/read_write.c:1540 __do_sys_sendfile64 fs/read_write.c:1601 [inline] __se_sys_sendfile64 fs/read_write.c:1587 [inline] __x64_sys_sendfile64+0xf2/0x130 fs/read_write.c:1587 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff888120757178 of 8 bytes by task 3757 on cpu 1: i_size_read include/linux/fs.h:854 [inline] ext4_dio_write_iter fs/ext4/file.c:474 [inline] ext4_file_write_iter+0x1a1/0x1000 fs/ext4/file.c:655 call_write_iter include/linux/fs.h:1882 [inline] do_iter_readv_writev+0x32e/0x3d0 fs/read_write.c:713 do_iter_write+0x112/0x4b0 fs/read_write.c:1018 vfs_iter_write+0x4c/0x70 fs/read_write.c:1059 iter_file_splice_write+0x41a/0x770 fs/splice.c:750 do_splice_from fs/splice.c:846 [inline] direct_splice_actor+0x95/0x160 fs/splice.c:1016 splice_direct_to_actor+0x365/0x660 fs/splice.c:971 do_splice_direct+0xf2/0x170 fs/splice.c:1059 do_sendfile+0x56a/0xba0 fs/read_write.c:1540 __do_sys_sendfile64 fs/read_write.c:1601 [inline] __se_sys_sendfile64 fs/read_write.c:1587 [inline] __x64_sys_sendfile64+0xf2/0x130 fs/read_write.c:1587 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 3757 Comm: syz-executor.5 Not tainted 5.8.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020/08/14 14:00 | upstream | a1d21081a60d | 5ce13532 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
| 2020/08/10 21:39 | upstream | fc80c51fd4b2 | 7adc7b65 | .config | console log | report | ci2-upstream-kcsan-gce |