Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in serial8250_do_startup / serial8250_handle_irq serial | 3 | 553d | 569d | 0/28 | auto-obsoleted due to no activity on 2023/09/13 05:36 |
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Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in serial8250_do_startup / serial8250_handle_irq serial | 3 | 553d | 569d | 0/28 | auto-obsoleted due to no activity on 2023/09/13 05:36 |
================================================================== BUG: KCSAN: data-race in serial8250_do_startup / serial8250_handle_irq write to 0xffffffff88c405c6 of 1 bytes by task 22450 on cpu 1: serial8250_do_startup+0x165c/0x1ea0 drivers/tty/serial/8250/8250_port.c:2468 serial8250_startup+0x40/0x50 drivers/tty/serial/8250/8250_port.c:2490 uart_port_startup drivers/tty/serial/serial_core.c:323 [inline] uart_startup+0x481/0x9b0 drivers/tty/serial/serial_core.c:367 uart_port_activate+0x66/0xb0 drivers/tty/serial/serial_core.c:1994 tty_port_open+0x160/0x1f0 drivers/tty/tty_port.c:784 uart_open+0x30/0x40 drivers/tty/serial/serial_core.c:1974 tty_open+0x3d4/0xb00 drivers/tty/tty_io.c:2146 chrdev_open+0x2f9/0x370 fs/char_dev.c:414 do_dentry_open+0x621/0xa20 fs/open.c:956 vfs_open+0x38/0x1e0 fs/open.c:1086 do_open fs/namei.c:3830 [inline] path_openat+0x1ae0/0x1fc0 fs/namei.c:3989 do_filp_open+0x107/0x230 fs/namei.c:4016 do_sys_openat2+0xab/0x120 fs/open.c:1428 do_sys_open fs/open.c:1443 [inline] __do_sys_openat fs/open.c:1459 [inline] __se_sys_openat fs/open.c:1454 [inline] __x64_sys_openat+0xf3/0x120 fs/open.c:1454 x64_sys_call+0x2b30/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:258 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 read to 0xffffffff88c405c6 of 1 bytes by interrupt on cpu 0: serial8250_handle_irq+0x3c9/0x620 drivers/tty/serial/8250/8250_port.c:1950 serial8250_default_handle_irq+0x94/0x130 drivers/tty/serial/8250/8250_port.c:1972 serial8250_interrupt+0x5d/0x120 drivers/tty/serial/8250/8250_core.c:86 __handle_irq_event_percpu+0x95/0x490 kernel/irq/handle.c:158 handle_irq_event_percpu kernel/irq/handle.c:193 [inline] handle_irq_event+0x64/0xf0 kernel/irq/handle.c:210 handle_edge_irq+0x16d/0x5b0 kernel/irq/chip.c:831 generic_handle_irq_desc include/linux/irqdesc.h:173 [inline] handle_irq arch/x86/kernel/irq.c:247 [inline] call_irq_handler arch/x86/kernel/irq.c:259 [inline] __common_interrupt+0x58/0xe0 arch/x86/kernel/irq.c:285 common_interrupt+0x7c/0x90 arch/x86/kernel/irq.c:278 asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693 get_current arch/x86/include/asm/current.h:49 [inline] write_comp_data kernel/kcov.c:245 [inline] __sanitizer_cov_trace_const_cmp4+0x11/0x90 kernel/kcov.c:314 atime_needs_update+0x41/0x3e0 fs/inode.c:2144 pick_link+0x2f9/0x7e0 fs/namei.c:1897 step_into+0x748/0x820 fs/namei.c:1984 walk_component fs/namei.c:2120 [inline] link_path_walk+0x50e/0x830 fs/namei.c:2479 path_lookupat+0x72/0x2b0 fs/namei.c:2635 filename_lookup+0x150/0x340 fs/namei.c:2665 vfs_statx+0x9a/0x170 fs/stat.c:346 vfs_fstatat fs/stat.c:368 [inline] __do_sys_newfstatat fs/stat.c:532 [inline] __se_sys_newfstatat+0xdc/0x300 fs/stat.c:526 __x64_sys_newfstatat+0x55/0x70 fs/stat.c:526 x64_sys_call+0x236d/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:263 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: 0x00 -> 0x05 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 22451 Comm: modprobe Not tainted 6.14.0-rc2-syzkaller-00034-gfebbc555cf0f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2025/02/11 10:27 | upstream | febbc555cf0f | 43f51a00 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in serial8250_do_startup / serial8250_handle_irq | ||
2025/02/06 06:46 | upstream | 92514ef226f5 | 577d049b | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in serial8250_do_startup / serial8250_handle_irq | ||
2024/12/19 22:39 | upstream | baaa2567a712 | 5905cb39 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in serial8250_do_startup / serial8250_handle_irq |