program: mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0xb, 0xc3072, 0xffffffffffffffff, 0x0) mmap(&(0x7f0000400000/0x3000)=nil, 0x3000, 0x2000009, 0x4d032, 0xffffffffffffffff, 0x0) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeea, 0x8031, 0xffffffffffffffff, 0x28f43000) mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x0) r0 = openat$fuse(0xffffffffffffff9c, &(0x7f0000000180), 0x42, 0x0) mount$fuse(0x0, &(0x7f00000020c0)='./file0\x00', &(0x7f0000002100), 0x0, &(0x7f0000002140)={{'fd', 0x3d, r0}, 0x2c, {'rootmode', 0x3d, 0x4000}}) read$FUSE(r0, &(0x7f0000006840)={0x2020, 0x0, 0x0}, 0x2020) syz_fuse_handle_req(r0, &(0x7f00000042c0)="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", 0x2000, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x1d, 0x2, 0x6) setsockopt$ALG_SET_AEAD_AUTHSIZE(r3, 0x6a, 0x4, 0x20000002, 0x5) writev(r2, &(0x7f00000003c0)=[{&(0x7f0000000180)="390000001300034700bb65e1c3e4ffff01000000160000005600000025000000190004000400000007fd17e5ffff0800040000000000000000", 0x39}], 0x1) r4 = socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000200), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_80211(r4, 0x8933, &(0x7f0000000080)={'wlan1\x00', 0x0}) sendmsg$NL80211_CMD_SET_STATION(r4, &(0x7f0000000100)={0x0, 0x1a, &(0x7f00000000c0)={&(0x7f0000000140)={0x30, r5, 0x100, 0x0, 0x25dfdbfb, {{}, {@val={0x8, 0x3, r6}, @void}}, [@NL80211_ATTR_STA_VLAN={0x8}, @NL80211_ATTR_LOCAL_MESH_POWER_MODE={0x0, 0xa4, 0x2}]}, 0x30}}, 0x0) sendmsg$NL80211_CMD_REGISTER_FRAME(r2, &(0x7f00000003c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000380)={&(0x7f0000000200)={0x17c, r5, 0x200, 0x70bd28, 0x25dfdbfc, {{}, {@void, @void}}, [@NL80211_ATTR_FRAME_MATCH={0x80, 0x5b, "35b4ce949a320df82258732d1753593241c6cf65212b370689e3ba7b55850e819305f30e91fe8273ebcd93a3c6f36a70e112f0a2dbe72ba2930aa52dcf2677f7a9b7fad5357246ea6836096a5be8615d21aa6d1ef5bd048299cd4c5939d26a963bae8c356224b7d903b52ac27213f5a1ad865a4b21c2ec3e31da085b"}, @NL80211_ATTR_FRAME_MATCH={0xdf, 0x5b, "f76776b2dc808d9080b293145b9f7f82cf87b1277ee327d9a5a0fdb0613a2f3a7accef3870b433f0d6ac5b3a35c45e8f24905676c9ddf50f8d84e4c8c1139c9722cc7796779563c9a0165a5fc467aa618b3821712316260384e815f1bc54638de71714d0e3f9e0ddba5d09fe52bc49cab71e7bb553cfc44b00746a19bb65aecec30a39a2075ed76210d5f9682164afbf95dceebe29c1b1a7904a2a8a8776115d370beef39ba725b53c4c88247d1f7fb3980ad876bb709cd9d49ea922bfd43292494999b6943b3d9d47dd62da4a7c4bfb908d20331af731234c6a25"}, @NL80211_ATTR_FRAME_TYPE={0x6, 0x65, 0xab3a}]}, 0x17c}, 0x1, 0x0, 0x0, 0x7}, 0x8000) write$FUSE_INIT(r0, &(0x7f0000004200)={0x50, 0x0, r1}, 0x50) ioctl$DRM_IOCTL_FREE_BUFS(0xffffffffffffffff, 0x4010641a, &(0x7f0000000440)={0x4, &(0x7f0000000400)=[0x5, 0x3, 0x7, 0xa]}) syz_fuse_handle_req(0xffffffffffffffff, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, &(0x7f0000006780)={0x90}, 0x0, 0x0, 0x0, 0x0, 0x0}) syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000000)='./file1\x00', 0x446, &(0x7f0000000080)={[{@stripe={'stripe', 0x3d, 0x2}}, {@journal_dev={'journal_dev', 0x3d, 0x1045}}, {@oldalloc}, {@noquota}, {@orlov}, {@barrier_val={'barrier', 0x3d, 0x2}}, {@delalloc}, {@nojournal_checksum}, {@orlov}, {@user_xattr}, {@quota}, {@delalloc}]}, 0x1, 0x553, &(0x7f0000001080)="$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") pwrite64(0xffffffffffffffff, &(0x7f0000000140)='2', 0x1, 0x8000c61) r7 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./file1\x00', 0x42, 0x10) mmap(&(0x7f000049a000/0x2000)=nil, 0x2000, 0x27ffff7, 0x4012011, r7, 0x0) r8 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x101042, 0x35) pwrite64(r8, &(0x7f0000000140)='2', 0xfdef, 0xfecc) setxattr$trusted_overlay_upper(&(0x7f0000000000)='./file1\x00', &(0x7f0000000500), &(0x7f0000001040)=ANY=[], 0x841, 0x0) r9 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x42, 0x0) write$FUSE_WRITE(r9, &(0x7f00000000c0)={0x18}, 0xfffffdef) syz_fuse_handle_req(0xffffffffffffffff, 0x0, 0x0, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, &(0x7f0000006780)={0x90, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2000, 0x0, 0x0, 0x0, 0x626d}}}, 0x0, 0x0, 0x0, 0x0, 0x0}) [ 86.062028][ T5300] Bluetooth: hci0: command tx timeout [ 86.204511][ T5328] netlink: 'syz.0.0': attribute type 4 has an invalid length. [ 86.398309][ T5328] loop0: detected capacity change from 0 to 1024 [ 86.406228][ T5328] ======================================================= [ 86.406228][ T5328] WARNING: The mand mount option has been deprecated and [ 86.406228][ T5328] and is ignored by this kernel. Remove the mand [ 86.406228][ T5328] option from the mount to silence this warning. [ 86.406228][ T5328] ======================================================= [ 86.452872][ T5328] EXT4-fs: Ignoring removed oldalloc option [ 86.455443][ T5328] EXT4-fs: Ignoring removed orlov option [ 86.457781][ T5328] EXT4-fs: Ignoring removed orlov option [ 86.468192][ T5328] EXT4-fs (loop0): stripe (2) is not aligned with cluster size (16), stripe is disabled [ 86.489522][ T5328] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 86.525648][ T5327] ================================================================== [ 86.529226][ T5327] BUG: KASAN: use-after-free in ext4_find_extent+0xae6/0xcc0 [ 86.532733][ T5327] Read of size 4 at addr ffff888011dda20c by task syz.0.0/5327 [ 86.536038][ T5327] [ 86.537145][ T5327] CPU: 0 UID: 0 PID: 5327 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 86.537162][ T5327] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 86.537170][ T5327] Call Trace: [ 86.537177][ T5327] [ 86.537183][ T5327] dump_stack_lvl+0x189/0x250 [ 86.537203][ T5327] ? __virt_addr_valid+0x1c8/0x5c0 [ 86.537221][ T5327] ? rcu_is_watching+0x15/0xb0 [ 86.537234][ T5327] ? __pfx_dump_stack_lvl+0x10/0x10 [ 86.537248][ T5327] ? rcu_is_watching+0x15/0xb0 [ 86.537266][ T5327] ? lock_release+0x4b/0x3e0 [ 86.537277][ T5327] ? _raw_spin_lock_irqsave+0xb3/0xf0 [ 86.537342][ T5327] ? __virt_addr_valid+0x1c8/0x5c0 [ 86.537360][ T5327] ? __virt_addr_valid+0x4a5/0x5c0 [ 86.537374][ T5327] print_report+0xca/0x240 [ 86.537388][ T5327] ? ext4_find_extent+0xae6/0xcc0 [ 86.537397][ T5327] kasan_report+0x118/0x150 [ 86.537413][ T5327] ? ext4_find_extent+0xae6/0xcc0 [ 86.537424][ T5327] ext4_find_extent+0xae6/0xcc0 [ 86.537436][ T5327] ext4_ext_map_blocks+0x288/0x6ac0 [ 86.537451][ T5327] ? __lock_acquire+0xab9/0xd20 [ 86.537462][ T5327] ? __pfx_ext4_ext_map_blocks+0x10/0x10 [ 86.537477][ T5327] ? ext4_es_lookup_extent+0x622/0xa70 [ 86.537494][ T5327] ext4_map_blocks+0x860/0x1740 [ 86.537512][ T5327] ? __pfx_ext4_map_blocks+0x10/0x10 [ 86.537525][ T5327] ? __pfx___mutex_trylock_common+0x10/0x10 [ 86.537537][ T5327] ? __bfs+0x154/0x2a0 [ 86.537547][ T5327] ? __pfx_hlock_conflict+0x10/0x10 [ 86.537563][ T5327] _ext4_get_block+0x200/0x4c0 [ 86.537575][ T5327] ? __pfx__ext4_get_block+0x10/0x10 [ 86.537590][ T5327] ext4_get_block_unwritten+0x2e/0x100 [ 86.537603][ T5327] ext4_block_write_begin+0x993/0x1710 [ 86.537621][ T5327] ? __pfx_ext4_get_block_unwritten+0x10/0x10 [ 86.537633][ T5327] ? __pfx_ext4_block_write_begin+0x10/0x10 [ 86.537648][ T5327] ? folio_mapping+0x16f/0x1f0 [ 86.537659][ T5327] ? ext4_inode_journal_mode+0x18c/0x480 [ 86.537675][ T5327] ext4_write_begin+0xc04/0x19a0 [ 86.537692][ T5327] ? __pfx_ext4_write_begin+0x10/0x10 [ 86.537703][ T5327] ? __ext4_handle_dirty_metadata+0x2fd/0x810 [ 86.537721][ T5327] ext4_da_write_begin+0x445/0xda0 [ 86.537735][ T5327] ? rcu_is_watching+0x15/0xb0 [ 86.537750][ T5327] ? __pfx_ext4_da_write_begin+0x10/0x10 [ 86.537762][ T5327] generic_perform_write+0x2c5/0x900 [ 86.537773][ T5327] ? __pfx_generic_perform_write+0x10/0x10 [ 86.537782][ T5327] ? file_modified_flags+0x4bb/0x560 [ 86.537794][ T5327] ? ext4_write_checks+0x24b/0x2c0 [ 86.537808][ T5327] ext4_buffered_write_iter+0xce/0x3a0 [ 86.537827][ T5327] ext4_file_write_iter+0x298/0x1bc0 [ 86.537845][ T5327] ? __pfx_ext4_file_write_iter+0x10/0x10 [ 86.537860][ T5327] vfs_write+0x5c9/0xb30 [ 86.537872][ T5327] ? __pfx_ext4_file_write_iter+0x10/0x10 [ 86.537887][ T5327] ? __pfx_vfs_write+0x10/0x10 [ 86.537901][ T5327] ? __fget_files+0x2a/0x420 [ 86.537917][ T5327] ksys_write+0x145/0x250 [ 86.537930][ T5327] ? __pfx_ksys_write+0x10/0x10 [ 86.537943][ T5327] ? do_syscall_64+0xbe/0xfa0 [ 86.537958][ T5327] do_syscall_64+0xfa/0xfa0 [ 86.537971][ T5327] ? lockdep_hardirqs_on+0x9c/0x150 [ 86.537987][ T5327] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.537999][ T5327] ? clear_bhb_loop+0x60/0xb0 [ 86.538013][ T5327] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.538023][ T5327] RIP: 0033:0x7f8aeb38efc9 [ 86.538036][ T5327] 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 [ 86.538045][ T5327] RSP: 002b:00007f8ae77f5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 86.538058][ T5327] RAX: ffffffffffffffda RBX: 00007f8aeb5e5fa0 RCX: 00007f8aeb38efc9 [ 86.538067][ T5327] RDX: 00000000fffffdef RSI: 00002000000000c0 RDI: 000000000000000a [ 86.538077][ T5327] RBP: 00007f8aeb411f91 R08: 0000000000000000 R09: 0000000000000000 [ 86.538084][ T5327] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 86.538092][ T5327] R13: 00007f8aeb5e6038 R14: 00007f8aeb5e5fa0 R15: 00007ffc1b2a30d8 [ 86.538104][ T5327] [ 86.538109][ T5327] [ 86.706676][ T5327] The buggy address belongs to the physical page: [ 86.709421][ T5327] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xa72 pfn:0x11dda [ 86.713011][ T5327] flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) [ 86.715850][ T5327] raw: 00fff00000000000 dead000000000100 dead000000000122 0000000000000000 [ 86.719299][ T5327] raw: 0000000000000a72 0000000000000000 00000000ffffffff 0000000000000000 [ 86.722974][ T5327] page dumped because: kasan: bad access detected [ 86.725486][ T5327] page_owner tracks the page as freed [ 86.727891][ T5327] page last allocated via order 0, migratetype Movable, gfp_mask 0x140cca(GFP_HIGHUSER_MOVABLE|__GFP_COMP), pid 5327, tgid 5326 (syz.0.0), ts 86378484998, free_ts 86477897907 [ 86.734951][ T5327] post_alloc_hook+0x240/0x2a0 [ 86.737013][ T5327] get_page_from_freelist+0x2365/0x2440 [ 86.739374][ T5327] __alloc_frozen_pages_noprof+0x181/0x370 [ 86.741823][ T5327] alloc_pages_mpol+0x232/0x4a0 [ 86.743908][ T5327] folio_alloc_mpol_noprof+0x39/0x70 [ 86.746089][ T5327] shmem_alloc_and_add_folio+0x447/0xf60 [ 86.748415][ T5327] shmem_get_folio_gfp+0x59d/0x1660 [ 86.750485][ T5327] shmem_fault+0x179/0x390 [ 86.752335][ T5327] __do_fault+0x138/0x390 [ 86.754054][ T5327] __handle_mm_fault+0x35e3/0x5400 [ 86.756132][ T5327] handle_mm_fault+0x40a/0x8e0 [ 86.758017][ T5327] __get_user_pages+0x165c/0x2a00 [ 86.760047][ T5327] populate_vma_page_range+0x29f/0x3a0 [ 86.762274][ T5327] __mm_populate+0x24c/0x380 [ 86.764356][ T5327] vm_mmap_pgoff+0x387/0x4d0 [ 86.766187][ T5327] do_syscall_64+0xfa/0xfa0 [ 86.768007][ T5327] page last free pid 79 tgid 79 stack trace: [ 86.770407][ T5327] free_unref_folios+0xdb3/0x14f0 [ 86.772470][ T5327] shrink_folio_list+0x295e/0x4c70 [ 86.774492][ T5327] evict_folios+0x471e/0x57c0 [ 86.776452][ T5327] try_to_shrink_lruvec+0x8a3/0xb50 [ 86.778520][ T5327] shrink_one+0x21b/0x7c0 [ 86.780471][ T5327] shrink_node+0x315d/0x3780 [ 86.782586][ T5327] kswapd+0x147c/0x2800 [ 86.784487][ T5327] kthread+0x711/0x8a0 [ 86.786286][ T5327] ret_from_fork+0x4bc/0x870 [ 86.788316][ T5327] ret_from_fork_asm+0x1a/0x30 [ 86.790369][ T5327] [ 86.791454][ T5327] Memory state around the buggy address: [ 86.793797][ T5327] ffff888011dda100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 86.797042][ T5327] ffff888011dda180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 86.800454][ T5327] >ffff888011dda200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 86.803987][ T5327] ^ [ 86.805950][ T5327] ffff888011dda280: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 86.809553][ T5327] ffff888011dda300: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 86.813200][ T5327] ================================================================== [ 86.823770][ T55] cfg80211: failed to load regulatory.db [ 86.869413][ T5327] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 86.872664][ T5327] CPU: 0 UID: 0 PID: 5327 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 86.876439][ T5327] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 86.880957][ T5327] Call Trace: [ 86.882433][ T5327] [ 86.883728][ T5327] dump_stack_lvl+0x99/0x250 [ 86.885766][ T5327] ? __asan_memcpy+0x40/0x70 [ 86.887724][ T5327] ? __pfx_dump_stack_lvl+0x10/0x10 [ 86.890024][ T5327] ? __pfx__printk+0x10/0x10 [ 86.892067][ T5327] vpanic+0x237/0x6d0 [ 86.893831][ T5327] ? __pfx_vpanic+0x10/0x10 [ 86.895656][ T5327] ? preempt_schedule+0xae/0xc0 [ 86.897597][ T5327] ? __pfx_preempt_schedule+0x10/0x10 [ 86.899729][ T5327] panic+0xb9/0xc0 [ 86.901267][ T5327] ? __pfx_panic+0x10/0x10 [ 86.903064][ T5327] ? _raw_spin_unlock_irqrestore+0xfd/0x110 [ 86.905472][ T5327] ? is_module_address+0x17/0xf0 [ 86.907469][ T5327] ? ext4_find_extent+0xae6/0xcc0 [ 86.909578][ T5327] check_panic_on_warn+0x89/0xb0 [ 86.911814][ T5327] ? ext4_find_extent+0xae6/0xcc0 [ 86.914004][ T5327] end_report+0x78/0x160 [ 86.915846][ T5327] kasan_report+0x129/0x150 [ 86.917810][ T5327] ? ext4_find_extent+0xae6/0xcc0 [ 86.919864][ T5327] ext4_find_extent+0xae6/0xcc0 [ 86.922128][ T5327] ext4_ext_map_blocks+0x288/0x6ac0 [ 86.924430][ T5327] ? __lock_acquire+0xab9/0xd20 [ 86.926414][ T5327] ? __pfx_ext4_ext_map_blocks+0x10/0x10 [ 86.928835][ T5327] ? ext4_es_lookup_extent+0x622/0xa70 [ 86.931565][ T5327] ext4_map_blocks+0x860/0x1740 [ 86.934191][ T5327] ? __pfx_ext4_map_blocks+0x10/0x10 [ 86.937119][ T5327] ? __pfx___mutex_trylock_common+0x10/0x10 [ 86.939723][ T5327] ? __bfs+0x154/0x2a0 [ 86.941380][ T5327] ? __pfx_hlock_conflict+0x10/0x10 [ 86.943732][ T5327] _ext4_get_block+0x200/0x4c0 [ 86.945742][ T5327] ? __pfx__ext4_get_block+0x10/0x10 [ 86.947993][ T5327] ext4_get_block_unwritten+0x2e/0x100 [ 86.950131][ T5327] ext4_block_write_begin+0x993/0x1710 [ 86.952461][ T5327] ? __pfx_ext4_get_block_unwritten+0x10/0x10 [ 86.955107][ T5327] ? __pfx_ext4_block_write_begin+0x10/0x10 [ 86.957736][ T5327] ? folio_mapping+0x16f/0x1f0 [ 86.959823][ T5327] ? ext4_inode_journal_mode+0x18c/0x480 [ 86.962223][ T5327] ext4_write_begin+0xc04/0x19a0 [ 86.964268][ T5327] ? __pfx_ext4_write_begin+0x10/0x10 [ 86.966543][ T5327] ? __ext4_handle_dirty_metadata+0x2fd/0x810 [ 86.969160][ T5327] ext4_da_write_begin+0x445/0xda0 [ 86.971372][ T5327] ? rcu_is_watching+0x15/0xb0 [ 86.973672][ T5327] ? __pfx_ext4_da_write_begin+0x10/0x10 [ 86.976090][ T5327] generic_perform_write+0x2c5/0x900 [ 86.978434][ T5327] ? __pfx_generic_perform_write+0x10/0x10 [ 86.980967][ T5327] ? file_modified_flags+0x4bb/0x560 [ 86.983342][ T5327] ? ext4_write_checks+0x24b/0x2c0 [ 86.985517][ T5327] ext4_buffered_write_iter+0xce/0x3a0 [ 86.987890][ T5327] ext4_file_write_iter+0x298/0x1bc0 [ 86.990132][ T5327] ? __pfx_ext4_file_write_iter+0x10/0x10 [ 86.992574][ T5327] vfs_write+0x5c9/0xb30 [ 86.994530][ T5327] ? __pfx_ext4_file_write_iter+0x10/0x10 [ 86.996977][ T5327] ? __pfx_vfs_write+0x10/0x10 [ 86.999070][ T5327] ? __fget_files+0x2a/0x420 [ 87.001119][ T5327] ksys_write+0x145/0x250 [ 87.002926][ T5327] ? __pfx_ksys_write+0x10/0x10 [ 87.005020][ T5327] ? do_syscall_64+0xbe/0xfa0 [ 87.007074][ T5327] do_syscall_64+0xfa/0xfa0 [ 87.009052][ T5327] ? lockdep_hardirqs_on+0x9c/0x150 [ 87.011326][ T5327] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.014054][ T5327] ? clear_bhb_loop+0x60/0xb0 [ 87.016146][ T5327] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.018677][ T5327] RIP: 0033:0x7f8aeb38efc9 [ 87.020562][ T5327] 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 [ 87.028801][ T5327] RSP: 002b:00007f8ae77f5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 87.032342][ T5327] RAX: ffffffffffffffda RBX: 00007f8aeb5e5fa0 RCX: 00007f8aeb38efc9 [ 87.035735][ T5327] RDX: 00000000fffffdef RSI: 00002000000000c0 RDI: 000000000000000a [ 87.039066][ T5327] RBP: 00007f8aeb411f91 R08: 0000000000000000 R09: 0000000000000000 [ 87.042527][ T5327] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 87.045796][ T5327] R13: 00007f8aeb5e6038 R14: 00007f8aeb5e5fa0 R15: 00007ffc1b2a30d8 [ 87.049262][ T5327] [ 87.051019][ T5327] Kernel Offset: disabled [ 87.052985][ T5327] Rebooting in 86400 seconds..