Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in page_cache_ra_unbounded / task_dump_owner fs mm | 1 | 1131d | 1131d | 0/26 | auto-closed as invalid on 2021/04/24 22:15 |
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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 / task_dump_owner fs mm | 1 | 1131d | 1131d | 0/26 | auto-closed as invalid on 2021/04/24 22:15 |
================================================================== BUG: KCSAN: data-race in page_cache_ra_unbounded / task_dump_owner write to 0xffff88812e4f902c of 4 bytes by task 12108 on cpu 0: memalloc_nofs_restore include/linux/sched/mm.h:263 [inline] page_cache_ra_unbounded+0x3e3/0x410 mm/readahead.c:239 ondemand_readahead+0x579/0x7b0 mm/readahead.c:267 page_cache_sync_ra+0xaf/0xe0 mm/readahead.c:578 page_cache_sync_readahead include/linux/pagemap.h:879 [inline] filemap_get_pages mm/filemap.c:2467 [inline] filemap_read+0x388/0x1230 mm/filemap.c:2550 generic_file_read_iter+0x75/0x2c0 mm/filemap.c:2701 ext4_file_read_iter+0x1db/0x290 fs/ext4/file.c:73 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_64+0x4a/0x90 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff88812e4f902c of 4 bytes by task 1027 on cpu 1: task_dump_owner+0x2b/0x1d0 fs/proc/base.c:1822 pid_update_inode fs/proc/base.c:1964 [inline] proc_pident_instantiate+0x138/0x190 fs/proc/base.c:2617 proc_pident_lookup fs/proc/base.c:2641 [inline] proc_tgid_base_lookup+0x10c/0x180 fs/proc/base.c:3296 lookup_open fs/namei.c:3193 [inline] open_last_lookups fs/namei.c:3285 [inline] path_openat+0xb5a/0x20b0 fs/namei.c:3491 do_filp_open+0xd9/0x1f0 fs/namei.c:3521 do_sys_openat2+0xa3/0x250 fs/open.c:1187 do_sys_open fs/open.c:1203 [inline] __do_sys_open fs/open.c:1211 [inline] __se_sys_open fs/open.c:1207 [inline] __x64_sys_open+0xe2/0x110 fs/open.c:1207 do_syscall_64+0x4a/0x90 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 1027 Comm: systemd-journal Not tainted 5.13.0-rc3-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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2021/05/27 15:17 | upstream | d7c5303fbc8a | 858ea628 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in page_cache_ra_unbounded / task_dump_owner | |||
2021/05/24 02:34 | upstream | 6ebb6814a1ef | 3c7fef33 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in page_cache_ra_unbounded / task_dump_owner | |||
2021/05/09 09:31 | upstream | b741596468b0 | bc5434be | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in page_cache_ra_unbounded / task_dump_owner |