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[syzbot] [ext4?] KCSAN: data-race in __filemap_add_folio / sync_bdevs (2) | 0 (1) | 2024/09/21 08:17 |
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[syzbot] [ext4?] KCSAN: data-race in __filemap_add_folio / sync_bdevs (2) | 0 (1) | 2024/09/21 08:17 |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in __filemap_add_folio / sync_bdevs fs mm | 1 | 628d | 628d | 0/28 | auto-obsoleted due to no activity on 2023/04/05 16:41 |
================================================================== BUG: KCSAN: data-race in __filemap_add_folio / sync_bdevs read-write to 0xffff8881004c24b0 of 8 bytes by task 2929 on cpu 0: __filemap_add_folio+0x439/0x710 mm/filemap.c:920 filemap_add_folio+0x9c/0x1b0 mm/filemap.c:972 __filemap_get_folio+0x2f1/0x5b0 mm/filemap.c:1960 grow_dev_folio fs/buffer.c:1043 [inline] grow_buffers fs/buffer.c:1109 [inline] __getblk_slow fs/buffer.c:1135 [inline] bdev_getblk+0x173/0x3b0 fs/buffer.c:1437 __getblk include/linux/buffer_head.h:380 [inline] jbd2_journal_get_descriptor_buffer+0xcf/0x210 fs/jbd2/journal.c:974 jbd2_journal_commit_transaction+0xc03/0x33e0 fs/jbd2/commit.c:610 kjournald2+0x20b/0x3c0 fs/jbd2/journal.c:201 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 0xffff8881004c24b0 of 8 bytes by task 1695 on cpu 1: sync_bdevs+0xd6/0x260 block/bdev.c:1228 ksys_sync+0x8c/0xe0 fs/sync.c:106 __do_sys_sync+0xe/0x20 fs/sync.c:113 x64_sys_call+0x2693/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:163 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: 0x0000000000000a25 -> 0x0000000000000a26 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 1695 Comm: syz.0.18383 Tainted: G W 6.11.0-syzkaller-07462-g1868f9d0260e #0 Tainted: [W]=WARN 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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/09/21 07:57 | upstream | 1868f9d0260e | 6f888b75 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in __filemap_add_folio / sync_bdevs |