program: mkdirat(0xffffffffffffff9c, &(0x7f0000004000)='./mnt\x00', 0x1ff) getsockopt$TIPC_DEST_DROPPABLE(0xffffffffffffffff, 0x10f, 0x81, &(0x7f0000000080), &(0x7f00000000c0)=0x4) add_key$user(&(0x7f00000003c0), &(0x7f0000000440), &(0x7f00000000c0), 0xc9, 0xfffffffffffffffd) mount(&(0x7f0000000400), &(0x7f0000000000)='./mnt\x00', &(0x7f0000000480)='ecryptfs\x00', 0x0, &(0x7f0000000500)='ecryptfs_sig=syz,ecryptfs_fnek_sig=syz,ecryptfs_cipher=aes,ecryptfs_key_bytes=16\x00') r0 = open(&(0x7f00000001c0)='./mnt\x00', 0x8000, 0x48) openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000100)='cpuset.effective_cpus\x00', 0x275a, 0x0) sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000000400)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000030c0)=ANY=[], 0xe8}, 0x1, 0x0, 0x0, 0x80}, 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0) openat(r0, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x0) syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0) ioctl$BTRFS_IOC_TREE_SEARCH(0xffffffffffffffff, 0x7005, 0x0) prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ffb000/0x1000)=nil, &(0x7f0000ff2000/0x1000)=nil, &(0x7f0000fee000/0x12000)=nil, &(0x7f0000ffb000/0x3000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ff3000/0x1000)=nil, &(0x7f0000ff1000/0x2000)=nil, &(0x7f0000ffb000/0x3000)=nil, &(0x7f0000ff5000/0x1000)=nil, &(0x7f0000ff3000/0xd000)=nil, &(0x7f0000ffa000/0x2000)=nil, 0x0}, 0x68) sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x2404c045) r1 = bpf$MAP_CREATE(0x0, &(0x7f0000000680)=ANY=[@ANYBLOB="0e00000004000000040000000c00000000000000d43d5e312cb311ba6cd79108ff7e703c10016a7d1f0bc6d42ed2aa6600000000000000000000000000f664ea0b05ed61779c80346b7f7b7f677d5dee6b135f961b064dd81cd1b657e887bac71a650937d8b39d31defc6047255cf4b183af2f3e4c503c173a2d6e247e5fb9b44fdd9eaaa8577567651b1e284a322af1bd3d6873b4cda07b0ac0aedf3c088db049a60e5358049e4bcde5ac20e8f721242a70dd7bbf1240e28c4f60bbd7b50ee32d834b23df808f7611d48de9cf668c47fb2bb8e0f01150075c2a4700bf920d75d6d78615405bb5fc1b84d43fdf", @ANYRES32, @ANYBLOB="0600"/20, @ANYRES32=0x0, @ANYRES32, @ANYBLOB="000000000100"/28], 0x50) unshare(0x400) bpf$MAP_LOOKUP_ELEM(0x1, &(0x7f0000000200)={r1, &(0x7f0000000140), &(0x7f0000000080)=""/82}, 0x20) io_uring_setup(0x1bc2, &(0x7f0000000040)={0x0, 0x100c89f, 0xc000, 0x7, 0x20002f9}) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000000000)={0xffffffffffffffff, 0x18000000000002a0, 0x0, 0x0, 0x0, 0x0, 0x501, 0x60000000, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x4}, 0x50) r2 = socket$inet(0x2, 0x80001, 0x84) sendmsg$netlink(0xffffffffffffffff, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000000)=[{0x0}], 0x1000000000000178, 0x0, 0x0, 0x448d0}, 0xc4) getsockopt$inet_sctp_SCTP_MAX_BURST(r2, 0x84, 0x14, &(0x7f0000000000)=@assoc_value, &(0x7f0000000300)=0x8) mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1) r3 = openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0) mount$fuse(0x0, &(0x7f00000001c0)='./file0\x00', &(0x7f0000002100), 0x80, &(0x7f0000000580)=ANY=[@ANYBLOB='fd=', @ANYRESHEX=r3, @ANYBLOB=',rootmode=00000000000000000040000,user_id=', @ANYRESDEC=0x0, @ANYBLOB=',group_id=', @ANYRESDEC=0x0, @ANYBLOB="dae5129f3a875d0c0eff5fc059cb0e1e179e165e7fe78bed61c23c077f3b666e000000003bb56cff3aa2808619452857acfc9f6a00007f18228730526d308d85c764f47649809856812f8172da64daa51f93426ca03717f804241b339bf335f1063e42fac810efbb6f07c9b9c538b715385c9b4db4ad4f5900"/133]) read$FUSE(r3, &(0x7f00000021c0)={0x2020, 0x0, 0x0, 0x0, 0x0}, 0x2020) write$FUSE_INIT(r3, &(0x7f0000000080)={0x50, 0x0, r4, {0x7, 0x29, 0x9, 0x0, 0x0, 0x0, 0x0, 0x4, 0x0, 0x0, 0x2}}, 0x50) openat$dir(0xffffffffffffff9c, &(0x7f0000004280)='./file0\x00', 0x0, 0x2c) syz_fuse_handle_req(r3, &(0x7f00000042c0)="000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001e000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000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0x2000, &(0x7f00000062c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, &(0x7f0000006380)={0x20, 0x0, 0x0, {0x0, 0x1c}}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) syz_fuse_handle_req(r3, &(0x7f00000063c0)="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0x2000, &(0x7f0000000b40)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000c40)=ANY=[@ANYBLOB="c002000000000000f9ffffffffffffff00000000000000000200000000000000020000000000000000010000000000000300000008000000060000000000000009000000000000000400000000000000fc00000000000080030000000000000000000000000000000100008058000000040000000090000009000000", @ANYRES32=r5, @ANYRES32=r6, @ANYBLOB="010000000400000000000000000000000000200037050000000000002b000000f30000003a2d285cc980000009c30000f3397cd86d4d928d14d3a461b60245898556c20600000000002b133b0801000000000000030000200000000002000000000000000104000000000000090000000000000088bc000009000000040000000000000003000000000000000500000000000000060000000000000003000000000000002e01000000000000af06000008000000fafffff700c0000007000000", @ANYRES32=r5, @ANYRES32=r6, @ANYBLOB="040000000800000000000000ffffffffffdfffff01040000000000000b00000004000000262b252a21eb285e2d4000000000000003000000000000000300000000000000010001000000000000020000000000005bfcfffe0800000000000000000000000500000000400000dd0e000000000000ff0000000000000000000000000000000400000000000000ff0f0000000000000b00000000a00000e9f80000", @ANYRES32=0x0, @ANYRES32=r6, @ANYBLOB="080020000000000000000000010000000000000001000000000000000100000008000000000000000000000004000000000000000000000000000000fc079a20daa32ed630d900000000000000000000960000006b24ac060000000000000001000000000000000500000000000000080000000000000000800000000000000300000016ac00000700000009000000090000000040000002", @ANYRES32=0x0, @ANYRES32=r6, @ANYBLOB="0500000001000000000000000400000000000000000000000000000002"], 0x0, 0x0, 0x0}) [ 94.362449][ T4644] Bluetooth: hci0: command tx timeout [ 94.496405][ T5317] ================================================================== [ 94.496419][ T5317] BUG: KASAN: slab-use-after-free in ecryptfs_write_tag_70_packet+0x1241/0x12e0 [ 94.496585][ T5317] Read of size 4 at addr ffff8880432f9e98 by task syz.0.0/5317 [ 94.496594][ T5317] [ 94.496602][ T5317] CPU: 0 UID: 0 PID: 5317 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 94.496615][ T5317] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 94.496622][ T5317] Call Trace: [ 94.496628][ T5317] [ 94.496633][ T5317] dump_stack_lvl+0xe8/0x150 [ 94.496668][ T5317] print_address_description+0x55/0x1e0 [ 94.496684][ T5317] ? ecryptfs_write_tag_70_packet+0x1241/0x12e0 [ 94.496697][ T5317] print_report+0x58/0x70 [ 94.496710][ T5317] kasan_report+0x117/0x150 [ 94.496732][ T5317] ? ecryptfs_write_tag_70_packet+0x1241/0x12e0 [ 94.496749][ T5317] ecryptfs_write_tag_70_packet+0x1241/0x12e0 [ 94.496767][ T5317] ecryptfs_encrypt_and_encode_filename+0x576/0x1580 [ 94.496779][ T5317] ? __pfx_ecryptfs_encrypt_and_encode_filename+0x10/0x10 [ 94.496788][ T5317] ? d_alloc_parallel+0x1535/0x16b0 [ 94.496801][ T5317] ecryptfs_lookup+0x20e/0x780 [ 94.496811][ T5317] ? __pfx_ecryptfs_lookup+0x10/0x10 [ 94.496820][ T5317] ? lock_acquire+0x115/0x350 [ 94.498134][ T5317] __lookup_slow+0x1fb/0x2f0 [ 94.498152][ T5317] lookup_slow+0x53/0x70 [ 94.498202][ T5317] link_path_walk+0xd2a/0x1910 [ 94.498223][ T5317] path_openat+0x1c9/0x1d60 [ 94.498244][ T5317] do_file_open+0x23e/0x4a0 [ 94.498262][ T5317] ? __pfx_do_file_open+0x10/0x10 [ 94.498282][ T5317] ? _raw_spin_unlock+0x28/0x50 [ 94.498707][ T5317] ? alloc_fd+0x651/0x6c0 [ 94.498724][ T5317] do_sys_openat2+0x115/0x200 [ 94.498739][ T5317] ? __se_sys_futex+0x3a8/0x450 [ 94.498760][ T5317] ? __pfx_do_sys_openat2+0x10/0x10 [ 94.498773][ T5317] ? rcu_is_watching+0x16/0xb0 [ 94.498790][ T5317] __x64_sys_openat+0x138/0x170 [ 94.498808][ T5317] do_syscall_64+0x166/0x520 [ 94.498822][ T5317] ? trace_irq_disable+0x3b/0x140 [ 94.498837][ T5317] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 94.498881][ T5317] ? clear_bhb_loop+0x70/0xc0 [ 94.498896][ T5317] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 94.498909][ T5317] RIP: 0033:0x7f0ff819e159 [ 94.498925][ T5317] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 94.498936][ T5317] RSP: 002b:00007f0ff9122fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 94.498951][ T5317] RAX: ffffffffffffffda RBX: 00007f0ff8425fa0 RCX: 00007f0ff819e159 [ 94.498960][ T5317] RDX: 0000000000000002 RSI: 0000200000000140 RDI: 0000000000000003 [ 94.498968][ T5317] RBP: 00007f0ff823506b R08: 0000000000000000 R09: 0000000000000000 [ 94.498975][ T5317] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 94.498982][ T5317] R13: 00007f0ff8426038 R14: 00007f0ff8425fa0 R15: 00007fffda524468 [ 94.498995][ T5317] [ 94.498999][ T5317] [ 94.499002][ T5317] Allocated by task 5317: [ 94.499009][ T5317] kasan_save_track+0x3e/0x80 [ 94.499022][ T5317] __kasan_kmalloc+0x93/0xb0 [ 94.499033][ T5317] __kvmalloc_node_noprof+0x50f/0x820 [ 94.499044][ T5317] __se_sys_add_key+0x289/0x420 [ 94.499083][ T5317] do_syscall_64+0x166/0x520 [ 94.499097][ T5317] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 94.499108][ T5317] [ 94.499111][ T5317] Freed by task 5317: [ 94.499117][ T5317] kasan_save_track+0x3e/0x80 [ 94.499126][ T5317] kasan_save_free_info+0x40/0x50 [ 94.499139][ T5317] __kasan_slab_free+0x5c/0x80 [ 94.499149][ T5317] kfree+0x1c5/0x650 [ 94.499161][ T5317] __se_sys_add_key+0x3a3/0x420 [ 94.499175][ T5317] do_syscall_64+0x166/0x520 [ 94.499188][ T5317] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 94.499197][ T5317] [ 94.499200][ T5317] The buggy address belongs to the object at ffff8880432f9e00 [ 94.499200][ T5317] which belongs to the cache kmalloc-256 of size 256 [ 94.499209][ T5317] The buggy address is located 152 bytes inside of [ 94.499209][ T5317] freed 256-byte region [ffff8880432f9e00, ffff8880432f9f00) [ 94.499220][ T5317] [ 94.499223][ T5317] The buggy address belongs to the physical page: [ 94.499229][ T5317] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x432f9 [ 94.499240][ T5317] flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff) [ 94.499252][ T5317] page_type: f5(slab) [ 94.499263][ T5317] raw: 04fff00000000000 ffff88801b041b40 dead000000000100 dead000000000122 [ 94.499273][ T5317] raw: 0000000000000000 0000000000080008 00000000f5000000 0000000000000000 [ 94.499279][ T5317] page dumped because: kasan: bad access detected [ 94.499285][ T5317] page_owner tracks the page as allocated [ 94.499289][ T5317] page last allocated via order 0, migratetype Unmovable, gfp_mask 0xd2cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5280, tgid 5280 (syz-executor), ts 92048097606 [ 94.499307][ T5317] post_alloc_hook+0x1f9/0x250 [ 94.499321][ T5317] get_page_from_freelist+0x2209/0x2280 [ 94.499333][ T5317] __alloc_frozen_pages_noprof+0x217/0x5a0 [ 94.499343][ T5317] allocate_slab+0x7d/0x620 [ 94.499355][ T5317] refill_objects+0x2d5/0x350 [ 94.499367][ T5317] __pcs_replace_empty_main+0x2c8/0x6c0 [ 94.499378][ T5317] __kmalloc_cache_noprof+0x39b/0x600 [ 94.499393][ T5317] ____ip_mc_inc_group+0x518/0xdb0 [ 94.499442][ T5317] ip_mc_up+0x115/0x2e0 [ 94.499455][ T5317] inetdev_event+0xfc3/0x15e0 [ 94.499477][ T5317] notifier_call_chain+0x1a5/0x3d0 [ 94.499497][ T5317] __dev_notify_flags+0x31e/0x510 [ 94.499511][ T5317] netif_change_flags+0xde/0x1b0 [ 94.499524][ T5317] do_setlink+0xdd6/0x4670 [ 94.499538][ T5317] rtnl_newlink+0x15a3/0x1c30 [ 94.499549][ T5317] rtnetlink_rcv_msg+0x802/0xc00 [ 94.499562][ T5317] page last free pid 9 tgid 9 ts 91812738589 stack trace: [ 94.499570][ T5317] __free_frozen_pages+0xc93/0xd90 [ 94.499584][ T5317] tlb_remove_table_rcu+0x85/0x100 [ 94.499594][ T5317] rcu_core+0x926/0x1260 [ 94.499605][ T5317] handle_softirqs+0x226/0x860 [ 94.499618][ T5317] do_softirq+0x77/0xd0 [ 94.499630][ T5317] __local_bh_enable_ip+0x100/0x140 [ 94.499642][ T5317] __alloc_skb+0x1b1/0x7a0 [ 94.499655][ T5317] mld_newpack+0x165/0xcb0 [ 94.499668][ T5317] add_grec+0x119f/0x19d0 [ 94.499679][ T5317] mld_ifc_work+0x6f1/0xd60 [ 94.499690][ T5317] process_scheduled_works+0xc3d/0x1630 [ 94.499704][ T5317] worker_thread+0xa47/0xfb0 [ 94.499716][ T5317] kthread+0x38b/0x480 [ 94.499725][ T5317] ret_from_fork+0x514/0xb70 [ 94.499735][ T5317] ret_from_fork_asm+0x1a/0x30 [ 94.499751][ T5317] [ 94.499754][ T5317] Memory state around the buggy address: [ 94.499760][ T5317] ffff8880432f9d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 94.499768][ T5317] ffff8880432f9e00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 94.499775][ T5317] >ffff8880432f9e80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 94.499780][ T5317] ^ [ 94.499786][ T5317] ffff8880432f9f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 94.499793][ T5317] ffff8880432f9f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 94.499798][ T5317] ================================================================== [ 94.499863][ T5317] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 94.796322][ T5317] CPU: 0 UID: 0 PID: 5317 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 94.800193][ T5317] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 94.804373][ T5317] Call Trace: [ 94.805817][ T5317] [ 94.807076][ T5317] vpanic+0x56d/0xa60 [ 94.808830][ T5317] ? rcu_is_watching+0x16/0xb0 [ 94.810824][ T5317] ? __pfx_vpanic+0x10/0x10 [ 94.812697][ T5317] panic+0xc5/0xd0 [ 94.814333][ T5317] ? __pfx_panic+0x10/0x10 [ 94.816168][ T5317] ? ecryptfs_write_tag_70_packet+0x1241/0x12e0 [ 94.819003][ T5317] ? ecryptfs_write_tag_70_packet+0x1241/0x12e0 [ 94.821657][ T5317] check_panic_on_warn+0x89/0xb0 [ 94.823712][ T5317] ? ecryptfs_write_tag_70_packet+0x1241/0x12e0 [ 94.826486][ T5317] end_report+0x73/0x170 [ 94.828265][ T5317] ? ecryptfs_write_tag_70_packet+0x1241/0x12e0 [ 94.830842][ T5317] kasan_report+0x128/0x150 [ 94.832731][ T5317] ? ecryptfs_write_tag_70_packet+0x1241/0x12e0 [ 94.835420][ T5317] ecryptfs_write_tag_70_packet+0x1241/0x12e0 [ 94.838075][ T5317] ecryptfs_encrypt_and_encode_filename+0x576/0x1580 [ 94.840863][ T5317] ? __pfx_ecryptfs_encrypt_and_encode_filename+0x10/0x10 [ 94.843826][ T5317] ? d_alloc_parallel+0x1535/0x16b0 [ 94.846013][ T5317] ecryptfs_lookup+0x20e/0x780 [ 94.848078][ T5317] ? __pfx_ecryptfs_lookup+0x10/0x10 [ 94.850212][ T5317] ? lock_acquire+0x115/0x350 [ 94.852234][ T5317] __lookup_slow+0x1fb/0x2f0 [ 94.854321][ T5317] lookup_slow+0x53/0x70 [ 94.856142][ T5317] link_path_walk+0xd2a/0x1910 [ 94.858540][ T5317] path_openat+0x1c9/0x1d60 [ 94.860527][ T5317] do_file_open+0x23e/0x4a0 [ 94.862505][ T5317] ? __pfx_do_file_open+0x10/0x10 [ 94.865103][ T5317] ? _raw_spin_unlock+0x28/0x50 [ 94.867571][ T5317] ? alloc_fd+0x651/0x6c0 [ 94.869465][ T5317] do_sys_openat2+0x115/0x200 [ 94.871523][ T5317] ? __se_sys_futex+0x3a8/0x450 [ 94.873644][ T5317] ? __pfx_do_sys_openat2+0x10/0x10 [ 94.875929][ T5317] ? rcu_is_watching+0x16/0xb0 [ 94.878002][ T5317] __x64_sys_openat+0x138/0x170 [ 94.880060][ T5317] do_syscall_64+0x166/0x520 [ 94.882036][ T5317] ? trace_irq_disable+0x3b/0x140 [ 94.884457][ T5317] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 94.887023][ T5317] ? clear_bhb_loop+0x70/0xc0 [ 94.888954][ T5317] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 94.892563][ T5317] RIP: 0033:0x7f0ff819e159 [ 94.894671][ T5317] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 94.902631][ T5317] RSP: 002b:00007f0ff9122fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 94.906187][ T5317] RAX: ffffffffffffffda RBX: 00007f0ff8425fa0 RCX: 00007f0ff819e159 [ 94.909517][ T5317] RDX: 0000000000000002 RSI: 0000200000000140 RDI: 0000000000000003 [ 94.913009][ T5317] RBP: 00007f0ff823506b R08: 0000000000000000 R09: 0000000000000000 [ 94.916496][ T5317] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 94.919781][ T5317] R13: 00007f0ff8426038 R14: 00007f0ff8425fa0 R15: 00007fffda524468 [ 94.923031][ T5317] [ 94.924762][ T5317] Kernel Offset: disabled [ 94.926650][ T5317] Rebooting in 86400 seconds..