| Kernel | Title | Rank 🛈 | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|---|
| upstream | KCSAN: data-race in filemap_splice_read / generic_file_direct_write fs | 6 | 1 | 721d | 721d | 0/29 | auto-obsoleted due to no activity on 2023/09/20 11:05 |
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| Kernel | Title | Rank 🛈 | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|---|
| upstream | KCSAN: data-race in filemap_splice_read / generic_file_direct_write fs | 6 | 1 | 721d | 721d | 0/29 | auto-obsoleted due to no activity on 2023/09/20 11:05 |
================================================================== BUG: KCSAN: data-race in filemap_splice_read / generic_file_direct_write write to 0xffff888140f1f168 of 8 bytes by task 27791 on cpu 0: i_size_write include/linux/fs.h:934 [inline] generic_file_direct_write+0x19d/0x1f0 mm/filemap.c:3882 __generic_file_write_iter+0xae/0x120 mm/filemap.c:4011 generic_file_write_iter+0x7d/0x1c0 mm/filemap.c:4051 call_write_iter include/linux/fs.h:2087 [inline] iter_file_splice_write+0x5de/0x950 fs/splice.c:743 do_splice_from fs/splice.c:941 [inline] direct_splice_actor+0x167/0x2c0 fs/splice.c:1164 splice_direct_to_actor+0x2fb/0x660 fs/splice.c:1108 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0xd7/0x150 fs/splice.c:1233 do_sendfile+0x3b9/0x960 fs/read_write.c:1295 __do_sys_sendfile64 fs/read_write.c:1362 [inline] __se_sys_sendfile64 fs/read_write.c:1348 [inline] __x64_sys_sendfile64+0x110/0x150 fs/read_write.c:1348 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x1d0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b read to 0xffff888140f1f168 of 8 bytes by task 27792 on cpu 1: i_size_read include/linux/fs.h:912 [inline] filemap_splice_read+0x770/0x8f0 mm/filemap.c:2868 do_splice_read fs/splice.c:985 [inline] splice_direct_to_actor+0x268/0x660 fs/splice.c:1089 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0xd7/0x150 fs/splice.c:1233 do_sendfile+0x3b9/0x960 fs/read_write.c:1295 __do_sys_sendfile64 fs/read_write.c:1362 [inline] __se_sys_sendfile64 fs/read_write.c:1348 [inline] __x64_sys_sendfile64+0x110/0x150 fs/read_write.c:1348 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x1d0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b value changed: 0x000000000000b600 -> 0x000000000000b800 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 27792 Comm: syz-executor.1 Not tainted 6.8.0-rc5-syzkaller-00329-gab0a97cffa0b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 ==================================================================
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024/02/25 13:20 | upstream | ab0a97cffa0b | 8d446f15 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in filemap_splice_read / generic_file_direct_write |