Kernel | Title | Rank 🛈 | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in page_cache_ra_unbounded / proc_task_name fs mm | 6 | 1 | 1696d | 1696d | 0/29 | auto-closed as invalid on 2021/01/11 19:20 |
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Kernel | Title | Rank 🛈 | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in page_cache_ra_unbounded / proc_task_name fs mm | 6 | 1 | 1696d | 1696d | 0/29 | auto-closed as invalid on 2021/01/11 19:20 |
================================================================== BUG: KCSAN: data-race in page_cache_ra_unbounded / proc_task_name write to 0xffff88803743802c of 4 bytes by task 32189 on cpu 1: memalloc_nofs_restore include/linux/sched/mm.h:258 [inline] page_cache_ra_unbounded+0x48c/0x4c0 mm/readahead.c:239 ondemand_readahead+0x560/0x780 mm/readahead.c:267 page_cache_sync_ra+0x18f/0x1a0 mm/readahead.c:577 page_cache_sync_readahead include/linux/pagemap.h:839 [inline] generic_file_buffered_read_get_pages+0x234/0xaf0 mm/filemap.c:2365 generic_file_buffered_read+0x26e/0x9c0 mm/filemap.c:2485 generic_file_read_iter+0x82/0x3e0 mm/filemap.c:2637 ext4_file_read_iter+0x2e0/0x430 fs/ext4/file.c:74 __kernel_read+0x306/0x580 fs/read_write.c:454 integrity_kernel_read+0x4c/0x70 security/integrity/iint.c:191 ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:484 [inline] ima_calc_file_shash security/integrity/ima/ima_crypto.c:515 [inline] ima_calc_file_hash+0x929/0x1310 security/integrity/ima/ima_crypto.c:572 ima_collect_measurement+0x168/0x310 security/integrity/ima/ima_api.c:250 process_measurement+0xa4c/0x10c0 security/integrity/ima/ima_main.c:330 ima_file_check+0x75/0xa0 security/integrity/ima/ima_main.c:498 do_open fs/namei.c:3256 [inline] path_openat+0x188a/0x20a0 fs/namei.c:3371 do_filp_open+0xbd/0x1d0 fs/namei.c:3398 do_sys_openat2+0xa3/0x250 fs/open.c:1172 do_sys_open fs/open.c:1188 [inline] __do_sys_open fs/open.c:1196 [inline] __se_sys_open fs/open.c:1192 [inline] __x64_sys_open+0xe2/0x110 fs/open.c:1192 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff88803743802c of 4 bytes by task 4868 on cpu 0: proc_task_name+0x3b/0x1e0 fs/proc/array.c:106 comm_show+0x45/0xd0 fs/proc/base.c:1697 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+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 4868 Comm: systemd-journal Not tainted 5.11.0-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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2021/02/13 18:17 | upstream | c6d8570e4d64 | 98682e5e | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in page_cache_ra_unbounded / proc_task_name |