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[syzbot] [exfat?] KCSAN: data-race in dio_bio_end_io / dio_new_bio (3) | 0 (1) | 2024/08/20 10:07 |
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[syzbot] [exfat?] KCSAN: data-race in dio_bio_end_io / dio_new_bio (3) | 0 (1) | 2024/08/20 10:07 |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in dio_bio_end_io / dio_new_bio exfat | 11 | 326d | 438d | 0/27 | auto-obsoleted due to no activity on 2023/11/25 15:37 | |||
upstream | KCSAN: data-race in dio_bio_end_io / dio_new_bio (2) exfat | 1 | 249d | 246d | 0/27 | auto-obsoleted due to no activity on 2024/02/11 03:04 |
================================================================== BUG: KCSAN: data-race in dio_bio_end_io / dio_new_bio read-write to 0xffff88810407a058 of 8 bytes by interrupt on cpu 0: dio_bio_end_io+0x53/0xd0 fs/direct-io.c:388 bio_endio+0x369/0x410 block/bio.c:1646 blk_update_request+0x382/0x880 block/blk-mq.c:925 blk_mq_end_request+0x26/0x50 block/blk-mq.c:1053 lo_complete_rq+0xce/0x180 drivers/block/loop.c:386 blk_complete_reqs block/blk-mq.c:1128 [inline] blk_done_softirq+0x74/0xb0 block/blk-mq.c:1133 handle_softirqs+0xc3/0x280 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu kernel/softirq.c:637 [inline] irq_exit_rcu+0x3e/0x90 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x73/0x80 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 selinux_file_permission+0x246/0x360 security/selinux/hooks.c:3638 security_file_permission+0x43/0x70 security/security.c:2722 rw_verify_area fs/read_write.c:377 [inline] vfs_iter_write+0x152/0x5d0 fs/read_write.c:890 lo_write_bvec drivers/block/loop.c:243 [inline] lo_write_simple drivers/block/loop.c:264 [inline] do_req_filebacked drivers/block/loop.c:511 [inline] loop_handle_cmd drivers/block/loop.c:1910 [inline] loop_process_work+0xad3/0x1230 drivers/block/loop.c:1945 loop_workfn+0x31/0x40 drivers/block/loop.c:1969 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0x483/0x9a0 kernel/workqueue.c:3312 worker_thread+0x526/0x6e0 kernel/workqueue.c:3389 kthread+0x1d1/0x210 kernel/kthread.c:389 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 read to 0xffff88810407a058 of 8 bytes by task 10676 on cpu 1: dio_bio_reap fs/direct-io.c:551 [inline] dio_new_bio+0x249/0x460 fs/direct-io.c:670 dio_send_cur_page+0x1f2/0x7a0 fs/direct-io.c:751 submit_page_section+0x1a3/0x5b0 fs/direct-io.c:816 do_direct_IO fs/direct-io.c:1031 [inline] __blockdev_direct_IO+0x11c1/0x1e90 fs/direct-io.c:1249 blockdev_direct_IO include/linux/fs.h:3218 [inline] fat_direct_IO+0x110/0x1e0 fs/fat/inode.c:282 generic_file_direct_write+0xaf/0x200 mm/filemap.c:3941 __generic_file_write_iter+0xae/0x120 mm/filemap.c:4107 generic_file_write_iter+0x7d/0x1d0 mm/filemap.c:4147 do_iter_readv_writev+0x3b0/0x470 vfs_writev+0x2e0/0x880 fs/read_write.c:971 do_pwritev fs/read_write.c:1072 [inline] __do_sys_pwritev2 fs/read_write.c:1131 [inline] __se_sys_pwritev2+0x10c/0x1d0 fs/read_write.c:1122 __x64_sys_pwritev2+0x78/0x90 fs/read_write.c:1122 x64_sys_call+0x271f/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:329 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0xffff888142f0ea80 -> 0xffff888142f0e540 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 10676 Comm: syz.0.972 Not tainted 6.11.0-rc7-syzkaller-00039-g77f587896757 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/09/12 11:26 | upstream | 77f587896757 | 60e1a995 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in dio_bio_end_io / dio_new_bio | ||
2024/09/04 05:08 | upstream | 88fac17500f4 | 326f9c5a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in dio_bio_end_io / dio_new_bio | ||
2024/09/02 01:48 | upstream | c9f016e72b5c | 1eda0d14 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in dio_bio_end_io / dio_new_bio | ||
2024/09/01 02:14 | upstream | e8784b0aef62 | 1eda0d14 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in dio_bio_end_io / dio_new_bio | ||
2024/08/20 09:55 | upstream | 6e4436539ae1 | 9f0ab3fb | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in dio_bio_end_io / dio_new_bio |