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================================================================== BUG: KCSAN: data-race in kernfs_fop_open / kernfs_refresh_inode write to 0xffff8880b70b2248 of 2 bytes by task 20150 on cpu 0: kernfs_refresh_inode+0x42/0x140 fs/kernfs/inode.c:172 kernfs_iop_permission+0x66/0xa0 fs/kernfs/inode.c:283 do_inode_permission fs/namei.c:384 [inline] inode_permission+0x241/0x3c0 fs/namei.c:449 may_open.isra.0+0x144/0x250 fs/namei.c:2963 do_last fs/namei.c:3404 [inline] path_openat+0xf05/0x36e0 fs/namei.c:3525 do_filp_open+0x11e/0x1b0 fs/namei.c:3555 do_sys_open+0x3b3/0x4f0 fs/open.c:1097 __do_sys_open fs/open.c:1115 [inline] __se_sys_open fs/open.c:1110 [inline] __x64_sys_open+0x55/0x70 fs/open.c:1110 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff8880b70b2248 of 2 bytes by task 3889 on cpu 1: kernfs_fop_open+0x14b/0x7f0 fs/kernfs/file.c:637 do_dentry_open+0x2f4/0x8f0 fs/open.c:797 vfs_open+0x62/0x80 fs/open.c:914 do_last fs/namei.c:3408 [inline] path_openat+0xf73/0x36e0 fs/namei.c:3525 do_filp_open+0x11e/0x1b0 fs/namei.c:3555 do_sys_open+0x3b3/0x4f0 fs/open.c:1097 __do_sys_open fs/open.c:1115 [inline] __se_sys_open fs/open.c:1110 [inline] __x64_sys_open+0x55/0x70 fs/open.c:1110 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 3889 Comm: udevd Not tainted 5.4.0-rc6+ #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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2019/11/10 17:33 | https://github.com/google/ktsan.git kcsan | 94c006602e13 | dc438b91 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/11/08 20:04 | https://github.com/google/ktsan.git kcsan | 94c006602e13 | 1e35461e | .config | console log | report | ci2-upstream-kcsan-gce |