Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in copy_page_to_iter / ext4_mark_iloc_dirty (2) ext4 | 2 | 909d | 910d | 0/26 | auto-closed as invalid on 2021/11/05 18:49 |
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Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in copy_page_to_iter / ext4_mark_iloc_dirty (2) ext4 | 2 | 909d | 910d | 0/26 | auto-closed as invalid on 2021/11/05 18:49 |
================================================================== BUG: KCSAN: data-race in copy_page_to_iter / ext4_mark_iloc_dirty write to 0xffff88811db4801c of 4 bytes by task 24229 on cpu 1: ext4_inode_blocks_set fs/ext4/inode.c:4926 [inline] ext4_do_update_inode fs/ext4/inode.c:5040 [inline] ext4_mark_iloc_dirty+0x23c/0x1750 fs/ext4/inode.c:5724 __ext4_mark_inode_dirty+0x4db/0x5b0 fs/ext4/inode.c:5918 ext4_write_end+0x420/0x820 fs/ext4/inode.c:1322 ext4_da_write_end+0x93/0x730 fs/ext4/inode.c:3079 generic_perform_write+0x22a/0x3c0 mm/filemap.c:3667 ext4_buffered_write_iter+0x2f2/0x3f0 fs/ext4/file.c:269 ext4_file_write_iter+0x2e7/0x11d0 fs/ext4/file.c:519 call_write_iter include/linux/fs.h:2114 [inline] new_sync_write fs/read_write.c:518 [inline] vfs_write+0x69d/0x770 fs/read_write.c:605 ksys_write+0xce/0x180 fs/read_write.c:658 __do_sys_write fs/read_write.c:670 [inline] __se_sys_write fs/read_write.c:667 [inline] __x64_sys_write+0x3e/0x50 fs/read_write.c:667 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff88811db48000 of 1024 bytes by task 24213 on cpu 0: instrument_copy_to_user include/linux/instrumented.h:119 [inline] copyout lib/iov_iter.c:156 [inline] copy_page_to_iter_iovec lib/iov_iter.c:228 [inline] __copy_page_to_iter lib/iov_iter.c:801 [inline] copy_page_to_iter+0x2e1/0x940 lib/iov_iter.c:829 filemap_read+0xef6/0x1220 mm/filemap.c:2605 generic_file_read_iter+0x75/0x2c0 mm/filemap.c:2701 blkdev_read_iter+0xb9/0xf0 fs/block_dev.c:1671 call_read_iter include/linux/fs.h:2108 [inline] new_sync_read fs/read_write.c:415 [inline] vfs_read+0x565/0x5d0 fs/read_write.c:496 ksys_read+0xce/0x180 fs/read_write.c:634 __do_sys_read fs/read_write.c:644 [inline] __se_sys_read fs/read_write.c:642 [inline] __x64_sys_read+0x3e/0x50 fs/read_write.c:642 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 24213 Comm: systemd-udevd Not tainted 5.14.0-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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2021/08/26 09:25 | upstream | 73f3af7b4611 | b599f2fc | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in copy_page_to_iter / ext4_mark_iloc_dirty |