| Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|
| upstream | KCSAN: data-race in filemap_read / ondemand_readahead fs | 4 | 983d | 1026d | 0/26 | auto-closed as invalid on 2021/09/29 19:15 |
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| Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|
| upstream | KCSAN: data-race in filemap_read / ondemand_readahead fs | 4 | 983d | 1026d | 0/26 | auto-closed as invalid on 2021/09/29 19:15 |
================================================================== BUG: KCSAN: data-race in filemap_read / ondemand_readahead read to 0xffff88813a24b9b0 of 8 bytes by task 24845 on cpu 0: ondemand_readahead+0x5c6/0x6c0 mm/readahead.c:639 page_cache_sync_ra+0x284/0x2a0 mm/readahead.c:709 page_cache_sync_readahead include/linux/pagemap.h:1214 [inline] filemap_get_pages+0x257/0xea0 mm/filemap.c:2598 filemap_read+0x223/0x680 mm/filemap.c:2693 generic_file_read_iter+0x76/0x320 mm/filemap.c:2840 call_read_iter include/linux/fs.h:1845 [inline] generic_file_splice_read+0xe3/0x290 fs/splice.c:402 do_splice_to fs/splice.c:885 [inline] splice_direct_to_actor+0x25a/0x5f0 fs/splice.c:956 do_splice_direct+0x104/0x180 fs/splice.c:1065 do_sendfile+0x3b8/0x950 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64 fs/read_write.c:1309 [inline] __x64_sys_sendfile64+0x110/0x150 fs/read_write.c:1309 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd write to 0xffff88813a24b9b0 of 8 bytes by task 24848 on cpu 1: filemap_read+0x466/0x680 mm/filemap.c:2749 generic_file_read_iter+0x76/0x320 mm/filemap.c:2840 call_read_iter include/linux/fs.h:1845 [inline] generic_file_splice_read+0xe3/0x290 fs/splice.c:402 do_splice_to fs/splice.c:885 [inline] splice_direct_to_actor+0x25a/0x5f0 fs/splice.c:956 do_splice_direct+0x104/0x180 fs/splice.c:1065 do_sendfile+0x3b8/0x950 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64 fs/read_write.c:1309 [inline] __x64_sys_sendfile64+0x110/0x150 fs/read_write.c:1309 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x000000000000a600 -> 0x000000000000a800 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 24848 Comm: syz-executor.1 Not tainted 6.3.0-rc6-syzkaller-00034-ge62252bc55b6 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 ==================================================================
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023/04/12 10:35 | upstream | e62252bc55b6 | 1a1596b6 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in filemap_read / ondemand_readahead |