Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in expand_downwards / find_vma mm | 1 | 1531d | 1531d | 0/26 | auto-closed as invalid on 2020/04/24 09:47 |
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Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in expand_downwards / find_vma mm | 1 | 1531d | 1531d | 0/26 | auto-closed as invalid on 2020/04/24 09:47 |
================================================================== BUG: KCSAN: data-race in expand_downwards / find_vma write to 0xffff88809e09ce10 of 8 bytes by task 29987 on cpu 1: expand_downwards+0x6d0/0x9c0 mm/mmap.c:2507 expand_stack+0x19/0x20 mm/mmap.c:2564 do_user_addr_fault+0x67e/0x770 arch/x86/mm/fault.c:1344 handle_page_fault arch/x86/mm/fault.c:1429 [inline] exc_page_fault+0xb8/0x330 arch/x86/mm/fault.c:1482 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:538 do_strncpy_from_user lib/strncpy_from_user.c:56 [inline] strncpy_from_user+0x205/0x2e0 lib/strncpy_from_user.c:121 getname_flags+0xb8/0x3d0 fs/namei.c:149 getname+0x15/0x20 fs/namei.c:209 do_sys_openat2+0x2f2/0x500 fs/open.c:1162 do_sys_open fs/open.c:1184 [inline] __do_sys_openat fs/open.c:1200 [inline] __se_sys_openat fs/open.c:1195 [inline] __x64_sys_openat+0xef/0x110 fs/open.c:1195 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff88809e09ce10 of 8 bytes by task 29983 on cpu 0: find_vma+0x73/0x100 mm/mmap.c:2274 __mm_populate+0x10c/0x340 mm/gup.c:1449 mm_populate include/linux/mm.h:2564 [inline] vm_mmap_pgoff+0x133/0x170 mm/util.c:511 ksys_mmap_pgoff+0xe1/0x380 mm/mmap.c:1596 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 29983 Comm: syz-executor.0 Not tainted 5.9.0-rc5-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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2020/09/16 22:56 | upstream | 5925fa68fe82 | 77507d02 | .config | console log | report | info | ci2-upstream-kcsan-gce |