kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:283 __kasan_slab_alloc+0xa2/0xc0 mm/kasan/common.c:446 kasan_slab_alloc include/linux/kasan.h:224 [inline] slab_post_alloc_hook mm/slab.h:749 [inline] slab_alloc_node mm/slub.c:3217 [inline] __kmalloc_node+0x23a/0x390 mm/slub.c:4458 kmalloc_node include/linux/slab.h:604 [inline] kvmalloc_node+0x3e/0x130 mm/util.c:580 kvmalloc include/linux/slab.h:731 [inline] seq_buf_alloc fs/seq_file.c:38 [inline] seq_read_iter+0x7f7/0x1280 fs/seq_file.c:210 kernfs_fop_read_iter+0x514/0x6f0 fs/kernfs/file.c:241 call_read_iter include/linux/fs.h:2073 [inline] new_sync_read+0x384/0x5f0 fs/read_write.c:401 vfs_read+0x492/0x5d0 fs/read_write.c:482 ksys_read+0x127/0x250 fs/read_write.c:620 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae ------------[ cut here ]------------ kernel BUG at include/linux/memcontrol.h:472! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 4931 Comm: syz-executor107 Tainted: G W 5.17.0-syzkaller-13532-gb4a5ea09b293 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:folio_memcg_rcu include/linux/memcontrol.h:472 [inline] RIP: 0010:workingset_activation+0x5d6/0x6d0 mm/workingset.c:413 Code: 48 89 ef e8 1c 01 00 00 c6 05 4f 2c f3 0b 01 0f 0b e9 00 fc ff ff e8 d9 f5 c9 ff 48 c7 c6 c0 5a d7 89 48 89 ef e8 fa 00 00 00 <0f> 0b e8 c3 f5 c9 ff 0f 0b e9 02 fb ff ff e8 b7 f5 c9 ff 48 c7 c6 RSP: 0018:ffffc900069a7550 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff88801e115700 RSI: ffffffff81aea756 RDI: 0000000000000003 RBP: ffffea00008f4c00 R08: 0000000000000029 R09: 00000000ffffffff R10: ffffffff891b91b5 R11: 00000000ffffffff R12: 0000000000000000 R13: ffff8880b9d34da8 R14: dffffc0000000000 R15: 0000000000000003 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0a5da701f0 CR3: 000000001b4e3000 CR4: 00000000003526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: folio_mark_accessed+0x596/0xdd0 mm/swap.c:440 kvm_set_pfn_accessed arch/x86/kvm/../../../virt/kvm/kvm_main.c:2815 [inline] kvm_set_pfn_accessed+0x1d7/0x220 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2812 handle_changed_spte_acc_track arch/x86/kvm/mmu/tdp_mmu.c:351 [inline] handle_changed_spte_acc_track+0x1bc/0x290 arch/x86/kvm/mmu/tdp_mmu.c:343 handle_changed_spte arch/x86/kvm/mmu/tdp_mmu.c:586 [inline] handle_removed_pt arch/x86/kvm/mmu/tdp_mmu.c:469 [inline] __handle_changed_spte+0xb88/0x1510 arch/x86/kvm/mmu/tdp_mmu.c:577 handle_changed_spte arch/x86/kvm/mmu/tdp_mmu.c:584 [inline] handle_removed_pt arch/x86/kvm/mmu/tdp_mmu.c:469 [inline] __handle_changed_spte+0xb79/0x1510 arch/x86/kvm/mmu/tdp_mmu.c:577 __tdp_mmu_set_spte+0x197/0x850 arch/x86/kvm/mmu/tdp_mmu.c:717 _tdp_mmu_set_spte arch/x86/kvm/mmu/tdp_mmu.c:732 [inline] tdp_mmu_set_spte arch/x86/kvm/mmu/tdp_mmu.c:740 [inline] __tdp_mmu_zap_root+0x783/0x7e0 arch/x86/kvm/mmu/tdp_mmu.c:845 tdp_mmu_zap_root+0x12e/0x330 arch/x86/kvm/mmu/tdp_mmu.c:881 kvm_tdp_mmu_zap_all+0x154/0x1b0 arch/x86/kvm/mmu/tdp_mmu.c:1012 kvm_mmu_zap_all+0x27c/0x2c0 arch/x86/kvm/mmu/mmu.c:6080 kvm_mmu_notifier_release+0x5f/0xa0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:813 mn_hlist_release mm/mmu_notifier.c:319 [inline] __mmu_notifier_release+0x1a9/0x600 mm/mmu_notifier.c:357 mmu_notifier_release include/linux/mmu_notifier.h:415 [inline] exit_mmap+0x3c5/0x4a0 mm/mmap.c:3114 __mmput+0x122/0x4b0 kernel/fork.c:1183 mmput+0x56/0x60 kernel/fork.c:1205 exit_mm kernel/exit.c:510 [inline] do_exit+0xa12/0x2a00 kernel/exit.c:782 do_group_exit+0xd2/0x2f0 kernel/exit.c:925 __do_sys_exit_group kernel/exit.c:936 [inline] __se_sys_exit_group kernel/exit.c:934 [inline] __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:934 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f0a5d9fad59 Code: Unable to access opcode bytes at RIP 0x7f0a5d9fad2f. RSP: 002b:00007ffee2e47398 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f0a5da6f350 RCX: 00007f0a5d9fad59 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffffffffffc0 R09: 00007ffee2e47588 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0a5da6f350 R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:folio_memcg_rcu include/linux/memcontrol.h:472 [inline] RIP: 0010:workingset_activation+0x5d6/0x6d0 mm/workingset.c:413 Code: 48 89 ef e8 1c 01 00 00 c6 05 4f 2c f3 0b 01 0f 0b e9 00 fc ff ff e8 d9 f5 c9 ff 48 c7 c6 c0 5a d7 89 48 89 ef e8 fa 00 00 00 <0f> 0b e8 c3 f5 c9 ff 0f 0b e9 02 fb ff ff e8 b7 f5 c9 ff 48 c7 c6 RSP: 0018:ffffc900069a7550 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff88801e115700 RSI: ffffffff81aea756 RDI: 0000000000000003 RBP: ffffea00008f4c00 R08: 0000000000000029 R09: 00000000ffffffff R10: ffffffff891b91b5 R11: 00000000ffffffff R12: 0000000000000000 R13: ffff8880b9d34da8 R14: dffffc0000000000 R15: 0000000000000003 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0a5da701f0 CR3: 000000001b4e3000 CR4: 00000000003526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400