syzbot |
sign-in | mailing list | source | docs |
================================================================== BUG: KCSAN: data-race in io_req_defer_failed / io_wq_free_work write to 0xffff8881152cdf48 of 8 bytes by task 4229 on cpu 0: io_req_defer_failed+0x6e/0x280 io_uring/io_uring.c:906 io_req_task_cancel+0x21/0x30 io_uring/io_uring.c:1332 io_handle_tw_list+0x1b9/0x200 io_uring/io_uring.c:1034 tctx_task_work_run+0x6c/0x1b0 io_uring/io_uring.c:1106 tctx_task_work+0x40/0x80 io_uring/io_uring.c:1124 task_work_run+0x13a/0x1a0 kernel/task_work.c:228 get_signal+0xeee/0x1080 kernel/signal.c:2689 arch_do_signal_or_restart+0x95/0x4b0 arch/x86/kernel/signal.c:310 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x59/0x130 kernel/entry/common.c:218 do_syscall_64+0xd6/0x1c0 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffff8881152cdf48 of 8 bytes by task 4230 on cpu 1: req_ref_put_and_test io_uring/refs.h:22 [inline] io_wq_free_work+0x21/0x160 io_uring/io_uring.c:1750 io_worker_handle_work+0x4cb/0x9d0 io_uring/io-wq.c:603 io_wq_worker+0x286/0x820 io_uring/io-wq.c:654 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 value changed: 0x0000000080ac4250 -> 0x0000000080ec4310 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 4230 Comm: iou-wrk-4229 Not tainted 6.11.0-rc4-syzkaller-00143-g3d5f968a177d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/08/23 22:31 | upstream | 3d5f968a177d | d7d32352 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in io_req_defer_failed / io_wq_free_work | ||
2024/08/23 22:31 | upstream | 3d5f968a177d | d7d32352 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in io_req_defer_failed / io_wq_free_work | ||
2024/08/17 01:09 | upstream | 85652baa895b | dbc93b08 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in io_req_defer_failed / io_wq_free_work | ||
2024/08/13 10:45 | upstream | d74da846046a | 7b0f4b46 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in io_req_defer_failed / io_wq_free_work | ||
2024/08/11 22:49 | upstream | 7006fe2f7f78 | 6f4edef4 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in io_req_defer_failed / io_wq_free_work | ||
2024/08/11 22:48 | upstream | 7006fe2f7f78 | 6f4edef4 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in io_req_defer_failed / io_wq_free_work |