Title | Replies (including bot) | Last reply |
---|---|---|
[syzbot] [bpf?] WARNING: locking bug in trie_delete_elem | 3 (5) | 2024/11/13 11:04 |
[syzbot] [bpf?] possible deadlock in get_page_from_freelist | 5 (6) | 2024/05/20 11:44 |
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Title | Replies (including bot) | Last reply |
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[syzbot] [bpf?] WARNING: locking bug in trie_delete_elem | 3 (5) | 2024/11/13 11:04 |
[syzbot] [bpf?] possible deadlock in get_page_from_freelist | 5 (6) | 2024/05/20 11:44 |
====================================================== WARNING: possible circular locking dependency detected 6.11.0-rc4-syzkaller-00011-g521b1e7f4cf0 #0 Not tainted ------------------------------------------------------ syz.1.1004/8477 is trying to acquire lock: ffff88813fffad58 (&zone->lock){-.-.}-{2:2}, at: rmqueue_buddy mm/page_alloc.c:2863 [inline] ffff88813fffad58 (&zone->lock){-.-.}-{2:2}, at: rmqueue mm/page_alloc.c:3042 [inline] ffff88813fffad58 (&zone->lock){-.-.}-{2:2}, at: get_page_from_freelist+0xb68/0x2f10 mm/page_alloc.c:3436 but task is already holding lock: ffff88806229e9f8 (&trie->lock){..-.}-{2:2}, at: trie_update_elem+0xc8/0xc00 kernel/bpf/lpm_trie.c:333 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&trie->lock){..-.}-{2:2}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162 trie_delete_elem+0x96/0x6a0 kernel/bpf/lpm_trie.c:462 0xffffffffa000088a bpf_dispatcher_nop_func include/linux/bpf.h:1243 [inline] __bpf_prog_run include/linux/filter.h:691 [inline] bpf_prog_run include/linux/filter.h:698 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2406 [inline] bpf_trace_run2+0x2ec/0x540 kernel/trace/bpf_trace.c:2447 trace_contention_end+0x114/0x140 include/trace/events/lock.h:122 __pv_queued_spin_lock_slowpath+0xb7e/0xdb0 kernel/locking/qspinlock.c:557 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:584 [inline] queued_spin_lock_slowpath+0x42/0x50 arch/x86/include/asm/qspinlock.h:51 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline] do_raw_spin_lock+0x272/0x370 kernel/locking/spinlock_debug.c:116 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:111 [inline] _raw_spin_lock_irqsave+0xe1/0x120 kernel/locking/spinlock.c:162 rmqueue_bulk mm/page_alloc.c:2262 [inline] __rmqueue_pcplist+0x44a/0x22c0 mm/page_alloc.c:2957 rmqueue_pcplist mm/page_alloc.c:2999 [inline] rmqueue mm/page_alloc.c:3036 [inline] get_page_from_freelist+0x85a/0x2f10 mm/page_alloc.c:3436 __alloc_pages_noprof+0x256/0x6c0 mm/page_alloc.c:4695 alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2263 stack_depot_save_flags+0x666/0x830 lib/stackdepot.c:627 kasan_save_stack mm/kasan/common.c:48 [inline] kasan_save_track+0x51/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:370 [inline] __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slub.c:4158 [inline] __kmalloc_node_noprof+0x22a/0x440 mm/slub.c:4164 kmalloc_array_node_noprof include/linux/slab.h:788 [inline] alloc_slab_obj_exts mm/slub.c:1976 [inline] account_slab mm/slub.c:2447 [inline] allocate_slab+0xb6/0x2f0 mm/slub.c:2502 new_slab mm/slub.c:2537 [inline] ___slab_alloc+0xcd1/0x14b0 mm/slub.c:3723 __slab_alloc+0x58/0xa0 mm/slub.c:3813 __slab_alloc_node mm/slub.c:3866 [inline] slab_alloc_node mm/slub.c:4025 [inline] __do_kmalloc_node mm/slub.c:4157 [inline] __kmalloc_noprof+0x25a/0x400 mm/slub.c:4170 kmalloc_noprof include/linux/slab.h:685 [inline] kzalloc_noprof include/linux/slab.h:807 [inline] __register_sysctl_table+0x65/0x1550 fs/proc/proc_sysctl.c:1363 __devinet_sysctl_register+0x1dc/0x2a0 net/ipv4/devinet.c:2602 devinet_sysctl_register+0x17e/0x1f0 net/ipv4/devinet.c:2642 inetdev_init+0x296/0x4d0 net/ipv4/devinet.c:291 inetdev_event+0x32c/0x15c0 net/ipv4/devinet.c:1565 notifier_call_chain+0x19f/0x3e0 kernel/notifier.c:93 call_netdevice_notifiers_extack net/core/dev.c:2032 [inline] call_netdevice_notifiers net/core/dev.c:2046 [inline] register_netdevice+0x167f/0x1b00 net/core/dev.c:10477 __ip_tunnel_create+0x2b4/0x380 net/ipv4/ip_tunnel.c:266 ip_tunnel_init_net+0x21c/0x710 net/ipv4/ip_tunnel.c:1159 ops_init+0x359/0x610 net/core/net_namespace.c:139 setup_net+0x515/0xca0 net/core/net_namespace.c:343 copy_net_ns+0x4e2/0x7b0 net/core/net_namespace.c:508 create_new_namespaces+0x425/0x7b0 kernel/nsproxy.c:110 unshare_nsproxy_namespaces+0x124/0x180 kernel/nsproxy.c:228 ksys_unshare+0x619/0xc10 kernel/fork.c:3328 __do_sys_unshare kernel/fork.c:3399 [inline] __se_sys_unshare kernel/fork.c:3397 [inline] __x64_sys_unshare+0x38/0x40 kernel/fork.c:3397 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (&zone->lock){-.-.}-{2:2}: check_prev_add kernel/locking/lockdep.c:3133 [inline] check_prevs_add kernel/locking/lockdep.c:3252 [inline] validate_chain+0x18e0/0x5900 kernel/locking/lockdep.c:3868 __lock_acquire+0x137a/0x2040 kernel/locking/lockdep.c:5142 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162 rmqueue_buddy mm/page_alloc.c:2863 [inline] rmqueue mm/page_alloc.c:3042 [inline] get_page_from_freelist+0xb68/0x2f10 mm/page_alloc.c:3436 __alloc_pages_noprof+0x256/0x6c0 mm/page_alloc.c:4695 __alloc_pages_node_noprof include/linux/gfp.h:269 [inline] alloc_pages_node_noprof include/linux/gfp.h:296 [inline] ___kmalloc_large_node+0x8b/0x1d0 mm/slub.c:4103 __kmalloc_large_node_noprof+0x1a/0x80 mm/slub.c:4130 __do_kmalloc_node mm/slub.c:4146 [inline] __kmalloc_node_noprof+0x2d2/0x440 mm/slub.c:4164 kmalloc_node_noprof include/linux/slab.h:708 [inline] bpf_map_kmalloc_node+0xd3/0x1c0 kernel/bpf/syscall.c:422 lpm_trie_node_alloc kernel/bpf/lpm_trie.c:299 [inline] trie_update_elem+0x1cd/0xc00 kernel/bpf/lpm_trie.c:342 bpf_map_update_value+0x4d3/0x540 kernel/bpf/syscall.c:203 map_update_elem+0x53a/0x6f0 kernel/bpf/syscall.c:1654 __sys_bpf+0x76f/0x810 kernel/bpf/syscall.c:5698 __do_sys_bpf kernel/bpf/syscall.c:5817 [inline] __se_sys_bpf kernel/bpf/syscall.c:5815 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5815 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&trie->lock); lock(&zone->lock); lock(&trie->lock); lock(&zone->lock); *** DEADLOCK *** 2 locks held by syz.1.1004/8477: #0: ffffffff8e738320 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline] #0: ffffffff8e738320 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline] #0: ffffffff8e738320 (rcu_read_lock){....}-{1:2}, at: bpf_map_update_value+0x3c4/0x540 kernel/bpf/syscall.c:202 #1: ffff88806229e9f8 (&trie->lock){..-.}-{2:2}, at: trie_update_elem+0xc8/0xc00 kernel/bpf/lpm_trie.c:333 stack backtrace: CPU: 0 UID: 0 PID: 8477 Comm: syz.1.1004 Not tainted 6.11.0-rc4-syzkaller-00011-g521b1e7f4cf0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Call Trace: <TASK> __dump_stack lib/dump_stack.c:93 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119 check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2186 check_prev_add kernel/locking/lockdep.c:3133 [inline] check_prevs_add kernel/locking/lockdep.c:3252 [inline] validate_chain+0x18e0/0x5900 kernel/locking/lockdep.c:3868 __lock_acquire+0x137a/0x2040 kernel/locking/lockdep.c:5142 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162 rmqueue_buddy mm/page_alloc.c:2863 [inline] rmqueue mm/page_alloc.c:3042 [inline] get_page_from_freelist+0xb68/0x2f10 mm/page_alloc.c:3436 __alloc_pages_noprof+0x256/0x6c0 mm/page_alloc.c:4695 __alloc_pages_node_noprof include/linux/gfp.h:269 [inline] alloc_pages_node_noprof include/linux/gfp.h:296 [inline] ___kmalloc_large_node+0x8b/0x1d0 mm/slub.c:4103 __kmalloc_large_node_noprof+0x1a/0x80 mm/slub.c:4130 __do_kmalloc_node mm/slub.c:4146 [inline] __kmalloc_node_noprof+0x2d2/0x440 mm/slub.c:4164 kmalloc_node_noprof include/linux/slab.h:708 [inline] bpf_map_kmalloc_node+0xd3/0x1c0 kernel/bpf/syscall.c:422 lpm_trie_node_alloc kernel/bpf/lpm_trie.c:299 [inline] trie_update_elem+0x1cd/0xc00 kernel/bpf/lpm_trie.c:342 bpf_map_update_value+0x4d3/0x540 kernel/bpf/syscall.c:203 map_update_elem+0x53a/0x6f0 kernel/bpf/syscall.c:1654 __sys_bpf+0x76f/0x810 kernel/bpf/syscall.c:5698 __do_sys_bpf kernel/bpf/syscall.c:5817 [inline] __se_sys_bpf kernel/bpf/syscall.c:5815 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5815 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f873f379e79 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f8740142038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f873f515f80 RCX: 00007f873f379e79 RDX: 0000000000000020 RSI: 0000000020000000 RDI: 0000000000000002 RBP: 00007f873f3e7916 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f873f515f80 R15: 00007ffc4b017cb8 </TASK>
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/08/21 05:31 | upstream | 521b1e7f4cf0 | 9f0ab3fb | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-smack-root | possible deadlock in get_page_from_freelist | ||
2024/06/22 09:09 | upstream | 4545981f33be | edc5149a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-root | possible deadlock in get_page_from_freelist | ||
2024/06/17 04:30 | upstream | 2ccbdf43d5e7 | f429ab00 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-root | possible deadlock in get_page_from_freelist | ||
2024/06/15 23:41 | upstream | 2ccbdf43d5e7 | f429ab00 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-root | possible deadlock in get_page_from_freelist | ||
2024/06/15 16:37 | upstream | 2ccbdf43d5e7 | f429ab00 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-badwrites-root | possible deadlock in get_page_from_freelist | ||
2024/06/04 06:56 | upstream | 2ab795141095 | a1feae05 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-smack-root | possible deadlock in get_page_from_freelist | ||
2024/05/06 18:37 | upstream | dd5a440a31fa | c035c6de | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-smack-root | possible deadlock in get_page_from_freelist | ||
2024/04/15 10:18 | upstream | 0bbac3facb5d | 459f4b00 | .config | console log | report | info | [disk image (non-bootable)] [vmlinux] [kernel image] | ci-qemu-upstream | possible deadlock in get_page_from_freelist | ||
2024/04/14 18:24 | upstream | 7efd0a74039f | c8349e48 | .config | console log | report | info | [disk image (non-bootable)] [vmlinux] [kernel image] | ci-qemu-upstream | possible deadlock in get_page_from_freelist | ||
2024/06/26 09:00 | upstream | 55027e689933 | c2e07261 | .config | console log | report | info | [disk image (non-bootable)] [vmlinux] [kernel image] | ci-qemu-upstream-386 | possible deadlock in get_page_from_freelist | ||
2024/07/30 05:25 | bpf | 41c24102af7b | 5187fc86 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-bpf-kasan-gce | possible deadlock in get_page_from_freelist | ||
2024/07/30 05:23 | bpf | 41c24102af7b | 5187fc86 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-bpf-kasan-gce | possible deadlock in get_page_from_freelist | ||
2024/11/21 07:28 | net-next | dd7207838d38 | 4b25d554 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-net-kasan-gce | possible deadlock in get_page_from_freelist | ||
2024/09/24 18:16 | bpf-next | 494c3a797257 | 5643e0e9 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-bpf-next-kasan-gce | possible deadlock in get_page_from_freelist | ||
2024/05/29 22:38 | bpf-next | fbe3e8473f39 | 34889ee3 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-bpf-next-kasan-gce | possible deadlock in get_page_from_freelist | ||
2024/05/18 20:12 | net-next | 4b377b4868ef | c0f1611a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-net-kasan-gce | possible deadlock in get_page_from_freelist | ||
2024/05/18 14:13 | net-next | 4b377b4868ef | c0f1611a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-net-kasan-gce | possible deadlock in get_page_from_freelist | ||
2024/04/11 02:21 | linux-next | 6ebf211bb11d | 56086b24 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | possible deadlock in get_page_from_freelist |