KCSAN: data-race in __bpf_lru_list_shrink / __htab_lru_percpu_map_update

Kernel	Title	Count	Last	Reported	Patched	Status
upstream	KCSAN: data-race in __bpf_lru_list_shrink / __htab_lru_percpu_map_update_elem (6) bpf	25	953d	1016d	0/28	auto-obsoleted due to no activity on 2022/10/14 12:43
upstream	KCSAN: data-race in __bpf_lru_list_shrink / __htab_lru_percpu_map_update_elem (5) bpf	39	1054d	1138d	0/28	auto-closed as invalid on 2022/07/05 10:02
upstream	KCSAN: data-race in __bpf_lru_list_shrink / __htab_lru_percpu_map_update_elem (3) bpf	1	1582d	1582d	0/28	auto-closed as invalid on 2021/01/23 10:19
upstream	KCSAN: data-race in __bpf_lru_list_shrink / __htab_lru_percpu_map_update_elem (4) bpf	3	1215d	1224d	0/28	auto-closed as invalid on 2022/01/25 13:08
upstream	KCSAN: data-race in __bpf_lru_list_shrink / __htab_lru_percpu_map_update_elem bpf	3	1785d	1852d	0/28	closed as invalid on 2020/06/18 14:24
upstream	KCSAN: data-race in __bpf_lru_list_shrink / __htab_lru_percpu_map_update_elem (2) bpf	11	1654d	1764d	0/28	auto-closed as invalid on 2020/11/11 15:25

================================================================== BUG: KCSAN: data-race in __bpf_lru_list_shrink / __htab_lru_percpu_map_update_elem write to 0xffff888141aa3deb of 1 bytes by task 5309 on cpu 1: bpf_lru_node_set_ref kernel/bpf/bpf_lru_list.h:71 [inline] __htab_lru_percpu_map_update_elem+0x3c0/0x560 kernel/bpf/hashtab.c:1351 bpf_percpu_hash_update+0x5e/0x90 kernel/bpf/hashtab.c:2372 bpf_map_update_value+0x2ae/0x370 kernel/bpf/syscall.c:204 generic_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1702 bpf_map_do_batch+0x2d9/0x3d0 kernel/bpf/syscall.c:4563 __sys_bpf+0x317/0x800 __do_sys_bpf kernel/bpf/syscall.c:5171 [inline] __se_sys_bpf kernel/bpf/syscall.c:5169 [inline] __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5169 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd read to 0xffff888141aa3deb of 1 bytes by task 5308 on cpu 0: bpf_lru_node_is_ref kernel/bpf/bpf_lru_list.c:44 [inline] __bpf_lru_list_shrink_inactive kernel/bpf/bpf_lru_list.c:218 [inline] __bpf_lru_list_shrink+0xcc/0x6c0 kernel/bpf/bpf_lru_list.c:266 bpf_lru_list_pop_free_to_local kernel/bpf/bpf_lru_list.c:340 [inline] bpf_common_lru_pop_free kernel/bpf/bpf_lru_list.c:447 [inline] bpf_lru_pop_free+0x84b/0xe20 kernel/bpf/bpf_lru_list.c:499 prealloc_lru_pop kernel/bpf/hashtab.c:301 [inline] __htab_lru_percpu_map_update_elem+0xf5/0x560 kernel/bpf/hashtab.c:1335 bpf_percpu_hash_update+0x5e/0x90 kernel/bpf/hashtab.c:2372 bpf_map_update_value+0x2ae/0x370 kernel/bpf/syscall.c:204 generic_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1702 bpf_map_do_batch+0x2d9/0x3d0 kernel/bpf/syscall.c:4563 __sys_bpf+0x317/0x800 __do_sys_bpf kernel/bpf/syscall.c:5171 [inline] __se_sys_bpf kernel/bpf/syscall.c:5169 [inline] __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5169 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x00 -> 0x01 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 5308 Comm: syz-executor.2 Not tainted 6.4.0-rc7-syzkaller-00019-g99ec1ed7c2ed #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 ================================================================== ================================================================== BUG: KCSAN: data-race in __htab_lru_percpu_map_update_elem / bpf_lru_pop_free read to 0xffff888141aa3deb of 1 bytes by task 5309 on cpu 1: bpf_lru_node_set_ref kernel/bpf/bpf_lru_list.h:70 [inline] __htab_lru_percpu_map_update_elem+0x2fe/0x560 kernel/bpf/hashtab.c:1351 bpf_percpu_hash_update+0x5e/0x90 kernel/bpf/hashtab.c:2372 bpf_map_update_value+0x2ae/0x370 kernel/bpf/syscall.c:204 generic_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1702 bpf_map_do_batch+0x2d9/0x3d0 kernel/bpf/syscall.c:4563 __sys_bpf+0x317/0x800 __do_sys_bpf kernel/bpf/syscall.c:5171 [inline] __se_sys_bpf kernel/bpf/syscall.c:5169 [inline] __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5169 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd write to 0xffff888141aa3deb of 1 bytes by task 5308 on cpu 0: __bpf_lru_node_move_in kernel/bpf/bpf_lru_list.c:92 [inline] __local_list_flush kernel/bpf/bpf_lru_list.c:300 [inline] bpf_lru_list_pop_free_to_local kernel/bpf/bpf_lru_list.c:327 [inline] bpf_common_lru_pop_free kernel/bpf/bpf_lru_list.c:447 [inline] bpf_lru_pop_free+0x37d/0xe20 kernel/bpf/bpf_lru_list.c:499 prealloc_lru_pop kernel/bpf/hashtab.c:301 [inline] __htab_lru_percpu_map_update_elem+0xf5/0x560 kernel/bpf/hashtab.c:1335 bpf_percpu_hash_update+0x5e/0x90 kernel/bpf/hashtab.c:2372 bpf_map_update_value+0x2ae/0x370 kernel/bpf/syscall.c:204 generic_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1702 bpf_map_do_batch+0x2d9/0x3d0 kernel/bpf/syscall.c:4563 __sys_bpf+0x317/0x800 __do_sys_bpf kernel/bpf/syscall.c:5171 [inline] __se_sys_bpf kernel/bpf/syscall.c:5169 [inline] __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5169 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x00 -> 0x01 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 5308 Comm: syz-executor.2 Not tainted 6.4.0-rc7-syzkaller-00019-g99ec1ed7c2ed #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 ================================================================== ================================================================== BUG: KCSAN: data-race in __bpf_lru_list_shrink / __htab_lru_percpu_map_update_elem write to 0xffff888141aa3deb of 1 bytes by task 5309 on cpu 1: bpf_lru_node_set_ref kernel/bpf/bpf_lru_list.h:71 [inline] __htab_lru_percpu_map_update_elem+0x3c0/0x560 kernel/bpf/hashtab.c:1351 bpf_percpu_hash_update+0x5e/0x90 kernel/bpf/hashtab.c:2372 bpf_map_update_value+0x2ae/0x370 kernel/bpf/syscall.c:204 generic_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1702 bpf_map_do_batch+0x2d9/0x3d0 kernel/bpf/syscall.c:4563 __sys_bpf+0x317/0x800 __do_sys_bpf kernel/bpf/syscall.c:5171 [inline] __se_sys_bpf kernel/bpf/syscall.c:5169 [inline] __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5169 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd read to 0xffff888141aa3deb of 1 bytes by task 5308 on cpu 0: bpf_lru_node_is_ref kernel/bpf/bpf_lru_list.c:44 [inline] __bpf_lru_list_shrink_inactive kernel/bpf/bpf_lru_list.c:218 [inline] __bpf_lru_list_shrink+0xcc/0x6c0 kernel/bpf/bpf_lru_list.c:266 bpf_lru_list_pop_free_to_local kernel/bpf/bpf_lru_list.c:340 [inline] bpf_common_lru_pop_free kernel/bpf/bpf_lru_list.c:447 [inline] bpf_lru_pop_free+0x84b/0xe20 kernel/bpf/bpf_lru_list.c:499 prealloc_lru_pop kernel/bpf/hashtab.c:301 [inline] __htab_lru_percpu_map_update_elem+0xf5/0x560 kernel/bpf/hashtab.c:1335 bpf_percpu_hash_update+0x5e/0x90 kernel/bpf/hashtab.c:2372 bpf_map_update_value+0x2ae/0x370 kernel/bpf/syscall.c:204 generic_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1702 bpf_map_do_batch+0x2d9/0x3d0 kernel/bpf/syscall.c:4563 __sys_bpf+0x317/0x800 __do_sys_bpf kernel/bpf/syscall.c:5171 [inline] __se_sys_bpf kernel/bpf/syscall.c:5169 [inline] __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5169 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x00 -> 0x01 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 5308 Comm: syz-executor.2 Not tainted 6.4.0-rc7-syzkaller-00019-g99ec1ed7c2ed #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 ================================================================== ================================================================== BUG: KCSAN: data-race in __bpf_lru_list_shrink / __htab_lru_percpu_map_update_elem write to 0xffff888141aa3da3 of 1 bytes by task 5309 on cpu 1: __bpf_lru_node_move kernel/bpf/bpf_lru_list.c:113 [inline] __bpf_lru_list_shrink_inactive kernel/bpf/bpf_lru_list.c:219 [inline] __bpf_lru_list_shrink+0x20c/0x6c0 kernel/bpf/bpf_lru_list.c:266 bpf_lru_list_pop_free_to_local kernel/bpf/bpf_lru_list.c:340 [inline] bpf_common_lru_pop_free kernel/bpf/bpf_lru_list.c:447 [inline] bpf_lru_pop_free+0x84b/0xe20 kernel/bpf/bpf_lru_list.c:499 prealloc_lru_pop kernel/bpf/hashtab.c:301 [inline] __htab_lru_percpu_map_update_elem+0xf5/0x560 kernel/bpf/hashtab.c:1335 bpf_percpu_hash_update+0x5e/0x90 kernel/bpf/hashtab.c:2372 bpf_map_update_value+0x2ae/0x370 kernel/bpf/syscall.c:204 generic_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1702 bpf_map_do_batch+0x2d9/0x3d0 kernel/bpf/syscall.c:4563 __sys_bpf+0x317/0x800 __do_sys_bpf kernel/bpf/syscall.c:5171 [inline] __se_sys_bpf kernel/bpf/syscall.c:5169 [inline] __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5169 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd read to 0xffff888141aa3da3 of 1 bytes by task 5308 on cpu 0: bpf_lru_node_set_ref kernel/bpf/bpf_lru_list.h:70 [inline] __htab_lru_percpu_map_update_elem+0x2fe/0x560 kernel/bpf/hashtab.c:1351 bpf_percpu_hash_update+0x5e/0x90 kernel/bpf/hashtab.c:2372 bpf_map_update_value+0x2ae/0x370 kernel/bpf/syscall.c:204 generic_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1702 bpf_map_do_batch+0x2d9/0x3d0 kernel/bpf/syscall.c:4563 __sys_bpf+0x317/0x800 __do_sys_bpf kernel/bpf/syscall.c:5171 [inline] __se_sys_bpf kernel/bpf/syscall.c:5169 [inline] __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5169 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x01 -> 0x00 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 5308 Comm: syz-executor.2 Not tainted 6.4.0-rc7-syzkaller-00019-g99ec1ed7c2ed #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 ================================================================== ================================================================== BUG: KCSAN: data-race in __htab_lru_percpu_map_update_elem / bpf_lru_pop_free write to 0xffff888141aa3da3 of 1 bytes by task 5309 on cpu 1: __bpf_lru_node_move_in kernel/bpf/bpf_lru_list.c:92 [inline] __local_list_flush kernel/bpf/bpf_lru_list.c:298 [inline] bpf_lru_list_pop_free_to_local kernel/bpf/bpf_lru_list.c:327 [inline] bpf_common_lru_pop_free kernel/bpf/bpf_lru_list.c:447 [inline] bpf_lru_pop_free+0x2f3/0xe20 kernel/bpf/bpf_lru_list.c:499 prealloc_lru_pop kernel/bpf/hashtab.c:301 [inline] __htab_lru_percpu_map_update_elem+0xf5/0x560 kernel/bpf/hashtab.c:1335 bpf_percpu_hash_update+0x5e/0x90 kernel/bpf/hashtab.c:2372 bpf_map_update_value+0x2ae/0x370 kernel/bpf/syscall.c:204 generic_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1702 bpf_map_do_batch+0x2d9/0x3d0 kernel/bpf/syscall.c:4563 __sys_bpf+0x317/0x800 __do_sys_bpf kernel/bpf/syscall.c:5171 [inline] __se_sys_bpf kernel/bpf/syscall.c:5169 [inline] __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5169 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd read to 0xffff888141aa3da3 of 1 bytes by task 5308 on cpu 0: bpf_lru_node_set_ref kernel/bpf/bpf_lru_list.h:70 [inline] __htab_lru_percpu_map_update_elem+0x2fe/0x560 kernel/bpf/hashtab.c:1351 bpf_percpu_hash_update+0x5e/0x90 kernel/bpf/hashtab.c:2372 bpf_map_update_value+0x2ae/0x370 kernel/bpf/syscall.c:204 generic_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1702 bpf_map_do_batch+0x2d9/0x3d0 kernel/bpf/syscall.c:4563 __sys_bpf+0x317/0x800 __do_sys_bpf kernel/bpf/syscall.c:5171 [inline] __se_sys_bpf kernel/bpf/syscall.c:5169 [inline] __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5169 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x01 -> 0x00 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 5308 Comm: syz-executor.2 Not tainted 6.4.0-rc7-syzkaller-00019-g99ec1ed7c2ed #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 ================================================================== ================================================================== BUG: KCSAN: data-race in __htab_lru_percpu_map_update_elem / bpf_lru_pop_free write to 0xffff888141aa3deb of 1 bytes by task 5309 on cpu 1: bpf_lru_node_set_ref kernel/bpf/bpf_lru_list.h:71 [inline] __htab_lru_percpu_map_update_elem+0x3c0/0x560 kernel/bpf/hashtab.c:1351 bpf_percpu_hash_update+0x5e/0x90 kernel/bpf/hashtab.c:2372 bpf_map_update_value+0x2ae/0x370 kernel/bpf/syscall.c:204 generic_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1702 bpf_map_do_batch+0x2d9/0x3d0 kernel/bpf/syscall.c:4563 __sys_bpf+0x317/0x800 __do_sys_bpf kernel/bpf/syscall.c:5171 [inline] __se_sys_bpf kernel/bpf/syscall.c:5169 [inline] __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5169 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd read to 0xffff888141aa3deb of 1 bytes by task 5308 on cpu 0: bpf_lru_node_is_ref kernel/bpf/bpf_lru_list.c:44 [inline] __local_list_flush kernel/bpf/bpf_lru_list.c:297 [inline] bpf_lru_list_pop_free_to_local kernel/bpf/bpf_lru_list.c:327 [inline] bpf_common_lru_pop_free kernel/bpf/bpf_lru_list.c:447 [inline] bpf_lru_pop_free+0x289/0xe20 kernel/bpf/bpf_lru_list.c:499 prealloc_lru_pop kernel/bpf/hashtab.c:301 [inline] __htab_lru_percpu_map_update_elem+0xf5/0x560 kernel/bpf/hashtab.c:1335 bpf_percpu_hash_update+0x5e/0x90 kernel/bpf/hashtab.c:2372 bpf_map_update_value+0x2ae/0x370 kernel/bpf/syscall.c:204 generic_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1702 bpf_map_do_batch+0x2d9/0x3d0 kernel/bpf/syscall.c:4563 __sys_bpf+0x317/0x800 __do_sys_bpf kernel/bpf/syscall.c:5171 [inline] __se_sys_bpf kernel/bpf/syscall.c:5169 [inline] __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5169 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x00 -> 0x01 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 5308 Comm: syz-executor.2 Not tainted 6.4.0-rc7-syzkaller-00019-g99ec1ed7c2ed #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 ================================================================== ================================================================== BUG: KCSAN: data-race in __bpf_lru_list_shrink / __htab_lru_percpu_map_update_elem write to 0xffff888141aa3da3 of 1 bytes by task 5309 on cpu 1: __bpf_lru_node_move kernel/bpf/bpf_lru_list.c:113 [inline] __bpf_lru_list_shrink_inactive kernel/bpf/bpf_lru_list.c:219 [inline] __bpf_lru_list_shrink+0x20c/0x6c0 kernel/bpf/bpf_lru_list.c:266 bpf_lru_list_pop_free_to_local kernel/bpf/bpf_lru_list.c:340 [inline] bpf_common_lru_pop_free kernel/bpf/bpf_lru_list.c:447 [inline] bpf_lru_pop_free+0x84b/0xe20 kernel/bpf/bpf_lru_list.c:499 prealloc_lru_pop kernel/bpf/hashtab.c:301 [inline] __htab_lru_percpu_map_update_elem+0xf5/0x560 kernel/bpf/hashtab.c:1335 bpf_percpu_hash_update+0x5e/0x90 kernel/bpf/hashtab.c:2372 bpf_map_update_value+0x2ae/0x370 kernel/bpf/syscall.c:204 generic_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1702 bpf_map_do_batch+0x2d9/0x3d0 kernel/bpf/syscall.c:4563 __sys_bpf+0x317/0x800 __do_sys_bpf kernel/bpf/syscall.c:5171 [inline] __se_sys_bpf kernel/bpf/syscall.c:5169 [inline] __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5169 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd read to 0xffff888141aa3da3 of 1 bytes by task 5308 on cpu 0: bpf_lru_node_set_ref kernel/bpf/bpf_lru_list.h:70 [inline] __htab_lru_percpu_map_update_elem+0x2fe/0x560 kernel/bpf/hashtab.c:1351 bpf_percpu_hash_update+0x5e/0x90 kernel/bpf/hashtab.c:2372 bpf_map_update_value+0x2ae/0x370 kernel/bpf/syscall.c:204 generic_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1702 bpf_map_do_batch+0x2d9/0x3d0 kernel/bpf/syscall.c:4563 __sys_bpf+0x317/0x800 __do_sys_bpf kernel/bpf/syscall.c:5171 [inline] __se_sys_bpf kernel/bpf/syscall.c:5169 [inline] __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5169 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x01 -> 0x00 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 5308 Comm: syz-executor.2 Not tainted 6.4.0-rc7-syzkaller-00019-g99ec1ed7c2ed #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 ================================================================== ================================================================== BUG: KCSAN: data-race in __htab_lru_percpu_map_update_elem / bpf_lru_pop_free write to 0xffff888141aa3da3 of 1 bytes by task 5309 on cpu 1: __bpf_lru_node_move_in kernel/bpf/bpf_lru_list.c:92 [inline] __local_list_flush kernel/bpf/bpf_lru_list.c:298 [inline] bpf_lru_list_pop_free_to_local kernel/bpf/bpf_lru_list.c:327 [inline] bpf_common_lru_pop_free kernel/bpf/bpf_lru_list.c:447 [inline] bpf_lru_pop_free+0x2f3/0xe20 kernel/bpf/bpf_lru_list.c:499 prealloc_lru_pop kernel/bpf/hashtab.c:301 [inline] __htab_lru_percpu_map_update_elem+0xf5/0x560 kernel/bpf/hashtab.c:1335 bpf_percpu_hash_update+0x5e/0x90 kernel/bpf/hashtab.c:2372 bpf_map_update_value+0x2ae/0x370 kernel/bpf/syscall.c:204 generic_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1702 bpf_map_do_batch+0x2d9/0x3d0 kernel/bpf/syscall.c:4563 __sys_bpf+0x317/0x800 __do_sys_bpf kernel/bpf/syscall.c:5171 [inline] __se_sys_bpf kernel/bpf/syscall.c:5169 [inline] __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5169 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd read to 0xffff888141aa3da3 of 1 bytes by task 5308 on cpu 0: bpf_lru_node_set_ref kernel/bpf/bpf_lru_list.h:70 [inline] __htab_lru_percpu_map_update_elem+0x2fe/0x560 kernel/bpf/hashtab.c:1351 bpf_percpu_hash_update+0x5e/0x90 kernel/bpf/hashtab.c:2372 bpf_map_update_value+0x2ae/0x370 kernel/bpf/syscall.c:204 generic_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1702 bpf_map_do_batch+0x2d9/0x3d0 kernel/bpf/syscall.c:4563 __sys_bpf+0x317/0x800 __do_sys_bpf kernel/bpf/syscall.c:5171 [inline] __se_sys_bpf kernel/bpf/syscall.c:5169 [inline] __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5169 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x01 -> 0x00 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 5308 Comm: syz-executor.2 Not tainted 6.4.0-rc7-syzkaller-00019-g99ec1ed7c2ed #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 ================================================================== ================================================================== BUG: KCSAN: data-race in __htab_lru_percpu_map_update_elem / bpf_lru_pop_free write to 0xffff888141aa3deb of 1 bytes by task 5309 on cpu 1: bpf_lru_node_set_ref kernel/bpf/bpf_lru_list.h:71 [inline] __htab_lru_percpu_map_update_elem+0x3c0/0x560 kernel/bpf/hashtab.c:1351 bpf_percpu_hash_update+0x5e/0x90 kernel/bpf/hashtab.c:2372 bpf_map_update_value+0x2ae/0x370 kernel/bpf/syscall.c:204 generic_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1702 bpf_map_do_batch+0x2d9/0x3d0 kernel/bpf/syscall.c:4563 __sys_bpf+0x317/0x800 __do_sys_bpf kernel/bpf/syscall.c:5171 [inline] __se_sys_bpf kernel/bpf/syscall.c:5169 [inline] __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5169 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd read to 0xffff888141aa3deb of 1 bytes by task 5308 on cpu 0: bpf_lru_node_is_ref kernel/bpf/bpf_lru_list.c:44 [inline] __local_list_flush kernel/bpf/bpf_lru_list.c:297 [inline] bpf_lru_list_pop_free_to_local kernel/bpf/bpf_lru_list.c:327 [inline] bpf_common_lru_pop_free kernel/bpf/bpf_lru_list.c:447 [inline] bpf_lru_pop_free+0x289/0xe20 kernel/bpf/bpf_lru_list.c:499 prealloc_lru_pop kernel/bpf/hashtab.c:301 [inline] __htab_lru_percpu_map_update_elem+0xf5/0x560 kernel/bpf/hashtab.c:1335 bpf_percpu_hash_update+0x5e/0x90 kernel/bpf/hashtab.c:2372 bpf_map_update_value+0x2ae/0x370 kernel/bpf/syscall.c:204 generic_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1702 bpf_map_do_batch+0x2d9/0x3d0 kernel/bpf/syscall.c:4563 __sys_bpf+0x317/0x800 __do_sys_bpf kernel/bpf/syscall.c:5171 [inline] __se_sys_bpf kernel/bpf/syscall.c:5169 [inline] __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5169 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x00 -> 0x01 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 5308 Comm: syz-executor.2 Not tainted 6.4.0-rc7-syzkaller-00019-g99ec1ed7c2ed #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 ==================================================================

Crashes (5):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	VM info	Assets (help?)	Manager	Title
2023/06/21 07:49	upstream	99ec1ed7c2ed	79782afc	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci2-upstream-kcsan-gce	KCSAN: data-race in __bpf_lru_list_shrink / __htab_lru_percpu_map_update_elem
2023/05/24 13:43	upstream	9d646009f65d	4bce1a3e	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci2-upstream-kcsan-gce	KCSAN: data-race in __bpf_lru_list_shrink / __htab_lru_percpu_map_update_elem
2023/05/24 05:15	upstream	27e462c8fad4	4bce1a3e	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci2-upstream-kcsan-gce	KCSAN: data-race in __bpf_lru_list_shrink / __htab_lru_percpu_map_update_elem
2023/05/23 15:23	upstream	ae8373a5add4	4bce1a3e	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci2-upstream-kcsan-gce	KCSAN: data-race in __bpf_lru_list_shrink / __htab_lru_percpu_map_update_elem
2023/04/30 17:02	upstream	825a0714d2b3	62df2017	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci2-upstream-kcsan-gce	KCSAN: data-race in __bpf_lru_list_shrink / __htab_lru_percpu_map_update_elem

Crashes (5):

Assets (help?)