Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in handle_mm_fault / loop_configure block | 1 | 712d | 712d | 0/26 | auto-closed as invalid on 2022/06/18 04:50 |
syzbot |
sign-in | mailing list | source | docs |
🐞 Open [983] ≡ Subsystems 🐞 Fixed [5236] 🐞 Invalid [12500] ⬇ 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 handle_mm_fault / loop_configure block | 1 | 712d | 712d | 0/26 | auto-closed as invalid on 2022/06/18 04:50 |
================================================================== BUG: KCSAN: data-race in handle_mm_fault / loop_configure write to 0xffff888105ef73e0 of 4 bytes by task 7630 on cpu 1: mapping_set_gfp_mask include/linux/pagemap.h:290 [inline] loop_configure+0x7f5/0xc30 drivers/block/loop.c:1077 lo_ioctl+0x641/0x1290 blkdev_ioctl+0x20e/0x440 block/ioctl.c:614 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xcb/0x140 fs/ioctl.c:856 __x64_sys_ioctl+0x3f/0x50 fs/ioctl.c:856 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 0xffff888105ef73e0 of 4 bytes by task 7633 on cpu 0: mapping_gfp_mask include/linux/pagemap.h:274 [inline] __get_fault_gfp_mask mm/memory.c:2944 [inline] __handle_mm_fault mm/memory.c:4970 [inline] handle_mm_fault+0x24e/0xa90 mm/memory.c:5151 do_user_addr_fault+0x4a1/0x980 arch/x86/mm/fault.c:1397 handle_page_fault arch/x86/mm/fault.c:1488 [inline] exc_page_fault+0x60/0x160 arch/x86/mm/fault.c:1544 asm_exc_page_fault+0x22/0x30 value changed: 0x00100cca -> 0x00100c0a Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 7633 Comm: syz-executor.5 Not tainted 6.0.0-rc2-syzkaller-00248-ge022620b5d05-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2022/08/27 14:12 | upstream | e022620b5d05 | 07177916 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in handle_mm_fault / loop_configure |