Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in fasync_insert_entry / sock_sendpage (2) fs | 3 | 370d | 389d | 0/26 | auto-obsoleted due to no activity on 2023/05/23 13:17 |
syzbot |
sign-in | mailing list | source | docs |
🐞 Open [977] ≡ Subsystems 🐞 Fixed [5235] 🐞 Invalid [12490] ⬇ Missing Backports [83] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes | 💬 Send us feedback |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in fasync_insert_entry / sock_sendpage (2) fs | 3 | 370d | 389d | 0/26 | auto-obsoleted due to no activity on 2023/05/23 13:17 |
================================================================== BUG: KCSAN: data-race in fasync_insert_entry / sock_sendpage read-write to 0xffff888104b86540 of 4 bytes by task 26036 on cpu 1: fasync_insert_entry+0x12c/0x160 fs/fcntl.c:931 fasync_add_entry fs/fcntl.c:958 [inline] fasync_helper+0x59/0xc0 fs/fcntl.c:976 sock_fasync+0x5c/0xc0 net/socket.c:1390 setfl fs/fcntl.c:73 [inline] do_fcntl+0xb2d/0xd30 fs/fcntl.c:339 __do_sys_fcntl fs/fcntl.c:453 [inline] __se_sys_fcntl+0xc6/0x180 fs/fcntl.c:438 __x64_sys_fcntl+0x3f/0x50 fs/fcntl.c:438 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd read to 0xffff888104b86540 of 4 bytes by task 26021 on cpu 0: sock_sendpage+0x3a/0x70 net/socket.c:1050 pipe_to_sendpage+0x128/0x160 fs/splice.c:364 splice_from_pipe_feed fs/splice.c:418 [inline] __splice_from_pipe+0x222/0x4d0 fs/splice.c:562 splice_from_pipe fs/splice.c:597 [inline] generic_splice_sendpage+0x89/0xc0 fs/splice.c:746 do_splice_from fs/splice.c:767 [inline] direct_splice_actor+0x80/0xa0 fs/splice.c:936 splice_direct_to_actor+0x345/0x660 fs/splice.c:891 do_splice_direct+0xfb/0x180 fs/splice.c:979 do_sendfile+0x3ad/0x900 fs/read_write.c:1262 __do_sys_sendfile64 fs/read_write.c:1327 [inline] __se_sys_sendfile64 fs/read_write.c:1313 [inline] __x64_sys_sendfile64+0x10c/0x150 fs/read_write.c:1313 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x00000002 -> 0x00042802 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 26021 Comm: syz-executor.3 Not tainted 5.19.0-rc6-syzkaller-00111-gb047602d579b-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2022/07/13 14:52 | upstream | b047602d579b | 5d921b08 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in fasync_insert_entry / sock_sendpage |