Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in page_cache_ra_unbounded / proc_cgroup_show (2) fs mm | 1 | 1067d | 1067d | 0/26 | auto-closed as invalid on 2021/06/28 14:19 |
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Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in page_cache_ra_unbounded / proc_cgroup_show (2) fs mm | 1 | 1067d | 1067d | 0/26 | auto-closed as invalid on 2021/06/28 14:19 |
================================================================== BUG: KCSAN: data-race in page_cache_ra_unbounded / proc_cgroup_show write to 0xffff88801226102c of 4 bytes by task 24980 on cpu 1: memalloc_nofs_restore include/linux/sched/mm.h:259 [inline] page_cache_ra_unbounded+0x48c/0x4c0 mm/readahead.c:239 do_page_cache_ra mm/readahead.c:267 [inline] force_page_cache_ra+0x226/0x260 mm/readahead.c:298 page_cache_sync_ra+0x178/0x1a0 mm/readahead.c:572 page_cache_sync_readahead include/linux/pagemap.h:840 [inline] filemap_get_pages+0x1ba/0x660 mm/filemap.c:2375 filemap_read+0x1ba/0x7b0 mm/filemap.c:2458 generic_file_read_iter+0x82/0x410 mm/filemap.c:2609 blkdev_read_iter+0xb3/0xc0 fs/block_dev.c:1723 call_read_iter include/linux/fs.h:1971 [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_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff88801226102c of 4 bytes by task 4824 on cpu 0: proc_cgroup_show+0x3b3/0x6a0 kernel/cgroup/cgroup.c:5821 proc_single_show+0x84/0x100 fs/proc/base.c:774 seq_read_iter+0x2ef/0x910 fs/seq_file.c:227 seq_read+0x221/0x260 fs/seq_file.c:159 vfs_read+0x154/0x5d0 fs/read_write.c:494 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_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 4824 Comm: systemd-journal Tainted: G W 5.12.0-rc4-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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2021/03/26 11:37 | upstream | db24726bfefa | a8529b82 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in page_cache_ra_unbounded / proc_cgroup_show |