Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in __anon_vma_prepare / do_anonymous_page (2) mm | 73 | 441d | 858d | 0/26 | auto-obsoleted due to no activity on 2023/03/14 09:30 |
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Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in __anon_vma_prepare / do_anonymous_page (2) mm | 73 | 441d | 858d | 0/26 | auto-obsoleted due to no activity on 2023/03/14 09:30 |
================================================================== BUG: KCSAN: data-race in __anon_vma_prepare / do_anonymous_page write to 0xffff888102a1da48 of 8 bytes by task 14729 on cpu 0: __anon_vma_prepare+0x12f/0x2d0 mm/rmap.c:207 anon_vma_prepare include/linux/rmap.h:152 [inline] do_anonymous_page+0x7bc/0x8b0 mm/memory.c:3546 handle_pte_fault mm/memory.c:4316 [inline] __handle_mm_fault mm/memory.c:4453 [inline] handle_mm_fault+0x96f/0x1a70 mm/memory.c:4551 faultin_page mm/gup.c:850 [inline] __get_user_pages+0x947/0xee0 mm/gup.c:1069 populate_vma_page_range mm/gup.c:1402 [inline] __mm_populate+0x24d/0x380 mm/gup.c:1450 mm_populate include/linux/mm.h:2582 [inline] vm_mmap_pgoff+0x145/0x1d0 mm/util.c:524 ksys_mmap_pgoff+0xe1/0x380 mm/mmap.c:1632 do_syscall_64+0x34/0x50 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff888102a1da48 of 8 bytes by task 14709 on cpu 1: anon_vma_prepare include/linux/rmap.h:149 [inline] do_anonymous_page+0x130/0x8b0 mm/memory.c:3546 handle_pte_fault mm/memory.c:4316 [inline] __handle_mm_fault mm/memory.c:4453 [inline] handle_mm_fault+0x96f/0x1a70 mm/memory.c:4551 do_user_addr_fault+0x60c/0xc00 arch/x86/mm/fault.c:1390 handle_page_fault arch/x86/mm/fault.c:1475 [inline] exc_page_fault+0x94/0x230 arch/x86/mm/fault.c:1531 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:577 __clear_user arch/x86/lib/usercopy_64.c:24 [inline] clear_user+0x60/0xa0 arch/x86/lib/usercopy_64.c:54 evdev_get_mask drivers/input/evdev.c:1023 [inline] evdev_do_ioctl drivers/input/evdev.c:1105 [inline] evdev_ioctl_handler+0x11ed/0x17e0 drivers/input/evdev.c:1272 evdev_ioctl+0x20/0x30 drivers/input/evdev.c:1281 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl+0xcb/0x140 fs/ioctl.c:739 __x64_sys_ioctl+0x3f/0x50 fs/ioctl.c:739 do_syscall_64+0x34/0x50 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 14709 Comm: syz-executor.2 Not tainted 5.12.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2021/04/18 01:45 | upstream | 194cf4825638 | 7e2b734b | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in __anon_vma_prepare / do_anonymous_page |