Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in ext4_alloc_file_blocks / filemap_fault (2) ext4 | 4 | 871d | 919d | 0/26 | auto-closed as invalid on 2022/01/11 02:52 |
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Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in ext4_alloc_file_blocks / filemap_fault (2) ext4 | 4 | 871d | 919d | 0/26 | auto-closed as invalid on 2022/01/11 02:52 |
================================================================== BUG: KCSAN: data-race in ext4_alloc_file_blocks / filemap_fault write to 0xffff88813790f2d0 of 8 bytes by task 19626 on cpu 0: i_size_write include/linux/fs.h:871 [inline] ext4_update_inode_size fs/ext4/ext4.h:3349 [inline] ext4_alloc_file_blocks+0x352/0x720 fs/ext4/extents.c:4446 ext4_fallocate+0x2a7/0x4d0 fs/ext4/extents.c:4705 vfs_fallocate+0x463/0x660 fs/open.c:311 ksys_fallocate fs/open.c:334 [inline] __do_sys_fallocate fs/open.c:342 [inline] __se_sys_fallocate fs/open.c:340 [inline] __x64_sys_fallocate+0x75/0xc0 fs/open.c:340 do_syscall_64+0x4a/0x90 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff88813790f2d0 of 8 bytes by task 19625 on cpu 1: i_size_read include/linux/fs.h:849 [inline] filemap_fault+0x88/0x7b0 mm/filemap.c:2971 ext4_filemap_fault+0x4b/0x60 fs/ext4/inode.c:6194 __do_fault mm/memory.c:3678 [inline] do_shared_fault mm/memory.c:4034 [inline] do_fault mm/memory.c:4112 [inline] handle_pte_fault mm/memory.c:4367 [inline] __handle_mm_fault mm/memory.c:4502 [inline] handle_mm_fault+0xf76/0x1a70 mm/memory.c:4600 do_user_addr_fault+0x60c/0xc00 arch/x86/mm/fault.c:1390 handle_page_fault arch/x86/mm/fault.c:1475 [inline] exc_page_fault+0x94/0x230 arch/x86/mm/fault.c:1531 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:577 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 19625 Comm: syz-executor.4 Tainted: G W 5.13.0-rc2-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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2021/05/19 06:25 | upstream | 8ac91e6c6033 | a343ba6b | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in ext4_alloc_file_blocks / filemap_fault |