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================================================================== BUG: KCSAN: data-race in clockevents_program_event / print_tickdevice write to 0xffff888237d1c218 of 8 bytes by interrupt on cpu 1: clockevents_program_event+0x36/0x1f0 kernel/time/clockevents.c:313 tick_program_event+0x7c/0xd0 kernel/time/tick-oneshot.c:44 hrtimer_interrupt+0x254/0x7b0 kernel/time/hrtimer.c:1828 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x5c/0x1a0 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x6e/0x80 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 xas_next_entry include/linux/xarray.h:1708 [inline] next_uptodate_folio+0xfd/0x890 mm/filemap.c:3464 filemap_map_pages+0x7b2/0x9f0 mm/filemap.c:3653 do_fault_around mm/memory.c:5019 [inline] do_read_fault mm/memory.c:5052 [inline] do_fault mm/memory.c:5191 [inline] do_pte_missing mm/memory.c:3947 [inline] handle_pte_fault mm/memory.c:5521 [inline] __handle_mm_fault mm/memory.c:5664 [inline] handle_mm_fault+0x1130/0x2a30 mm/memory.c:5832 do_user_addr_fault arch/x86/mm/fault.c:1338 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x3b9/0x650 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 read to 0xffff888237d1c218 of 8 bytes by task 4476 on cpu 0: print_tickdevice+0x144/0x340 kernel/time/timer_list.c:208 timer_list_show+0x79/0x180 kernel/time/timer_list.c:300 seq_read_iter+0x2d7/0x940 fs/seq_file.c:230 proc_reg_read_iter+0x11e/0x190 fs/proc/inode.c:299 copy_splice_read+0x3a4/0x5d0 fs/splice.c:365 do_splice_read fs/splice.c:985 [inline] splice_direct_to_actor+0x26c/0x670 fs/splice.c:1089 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0xd7/0x150 fs/splice.c:1233 do_sendfile+0x3ab/0x950 fs/read_write.c:1295 __do_sys_sendfile64 fs/read_write.c:1362 [inline] __se_sys_sendfile64 fs/read_write.c:1348 [inline] __x64_sys_sendfile64+0x110/0x150 fs/read_write.c:1348 x64_sys_call+0xed5/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:41 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: 0x7fffffffffffffff -> 0x0000000d14823c9c Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 4476 Comm: syz.0.346 Not tainted 6.11.0-rc5-syzkaller-00176-g20371ba12063 #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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/08/30 08:25 | upstream | 20371ba12063 | ee2602b8 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in clockevents_program_event / print_tickdevice | ||
2024/08/24 04:27 | upstream | 60f0560f53e3 | d7d32352 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in clockevents_program_event / print_tickdevice |