kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 18003 Comm: syz-executor4 Not tainted 4.20.0+ #294 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:keyctl_pkey_params_parse security/keys/keyctl_pkey.c:56 [inline] RIP: 0010:keyctl_pkey_params_get+0x2e7/0x560 security/keys/keyctl_pkey.c:96 Code: fe 48 8b 44 24 38 48 c1 e8 03 42 80 3c 28 00 0f 85 f8 01 00 00 4c 8b a4 24 e0 00 00 00 4c 89 e0 4c 89 e2 48 c1 e8 03 83 e2 07 <42> 0f b6 04 28 38 d0 7f 08 84 c0 0f 85 e1 01 00 00 41 0f b6 04 24 RSP: 0018:ffff88805ec4fa40 EFLAGS: 00010206 RAX: 0000000000000000 RBX: ffff88805ec4fd08 RCX: ffffc90007e01000 RDX: 0000000000000005 RSI: ffffffff8340041e RDI: 0000000000000001 RBP: ffff88805ec4fba8 R08: ffff8880a0914180 R09: ffffed1011c58848 R10: ffffed1011c58848 R11: 0000000000000001 R12: 0000000000000005 R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880ae700000(0063) knlGS:00000000f5f91b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007fc47b67c638 CR3: 0000000059d7e000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: keyctl_pkey_params_get_2+0x12f/0x580 security/keys/keyctl_pkey.c:130 keyctl_pkey_e_d_s+0xb0/0x4f0 security/keys/keyctl_pkey.c:218 __do_compat_sys_keyctl security/keys/compat.c:154 [inline] __se_compat_sys_keyctl security/keys/compat.c:59 [inline] __ia32_compat_sys_keyctl+0x13d/0x430 security/keys/compat.c:59 do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline] do_fast_syscall_32+0x34d/0xfb2 arch/x86/entry/common.c:397 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7f95849 Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000f5f910cc EFLAGS: 00000296 ORIG_RAX: 0000000000000120 RAX: ffffffffffffffda RBX: 0000000000000019 RCX: 000000002d11f345 RDX: 0000000020000080 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: kobject: 'loop1' (00000000f446747f): kobject_uevent_env kobject: 'loop1' (00000000f446747f): fill_kobj_path: path = '/devices/virtual/block/loop1' CPU: 0 PID: 18010 Comm: syz-executor2 Tainted: G D 4.20.0+ #294 kobject: 'loop3' (00000000f3dba1eb): kobject_uevent_env Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 kobject: 'loop3' (00000000f3dba1eb): fill_kobj_path: path = '/devices/virtual/block/loop3' Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1d3/0x2c6 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x17 lib/fault-inject.c:149 kobject: 'loop5' (00000000e5a0021c): kobject_uevent_env kobject: 'loop5' (00000000e5a0021c): fill_kobj_path: path = '/devices/virtual/block/loop5' ---[ end trace dc5fac43c3571503 ]--- RIP: 0010:keyctl_pkey_params_parse security/keys/keyctl_pkey.c:56 [inline] RIP: 0010:keyctl_pkey_params_get+0x2e7/0x560 security/keys/keyctl_pkey.c:96 __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1578 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc_node mm/slab.c:3299 [inline] kmem_cache_alloc_node+0x26e/0x730 mm/slab.c:3642 Code: fe 48 8b 44 24 38 48 c1 e8 03 42 80 3c 28 00 0f 85 f8 01 00 00 4c 8b a4 24 e0 00 00 00 4c 89 e0 4c 89 e2 48 c1 e8 03 83 e2 07 <42> 0f b6 04 28 38 d0 7f 08 84 c0 0f 85 e1 01 00 00 41 0f b6 04 24 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 RSP: 0018:ffff88805ec4fa40 EFLAGS: 00010206 alloc_skb include/linux/skbuff.h:997 [inline] netlink_dump+0x7d5/0x1080 net/netlink/af_netlink.c:2224 __netlink_dump_start+0x59a/0x7c0 net/netlink/af_netlink.c:2352 netlink_dump_start include/linux/netlink.h:216 [inline] inet_diag_handler_cmd+0x2ce/0x3f0 net/ipv4/inet_diag.c:1172 __sock_diag_cmd net/core/sock_diag.c:232 [inline] sock_diag_rcv_msg+0x31d/0x410 net/core/sock_diag.c:263 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2477 sock_diag_rcv+0x2a/0x40 net/core/sock_diag.c:274 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x5a5/0x760 net/netlink/af_netlink.c:1336 netlink_sendmsg+0xa18/0xfc0 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:631 sock_write_iter+0x35e/0x5c0 net/socket.c:900 call_write_iter include/linux/fs.h:1857 [inline] do_iter_readv_writev+0x8b0/0xa80 fs/read_write.c:680 do_iter_write+0x185/0x5f0 fs/read_write.c:959 compat_writev+0x233/0x410 fs/read_write.c:1273 do_compat_writev+0x119/0x250 fs/read_write.c:1294 __do_compat_sys_writev fs/read_write.c:1305 [inline] __se_compat_sys_writev fs/read_write.c:1301 [inline] __ia32_compat_sys_writev+0x74/0xb0 fs/read_write.c:1301 do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline] do_fast_syscall_32+0x34d/0xfb2 arch/x86/entry/common.c:397 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7f49849 Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000f5f030cc EFLAGS: 00000296 ORIG_RAX: 0000000000000092 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000002051c000 RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 RAX: 0000000000000000 RBX: ffff88805ec4fd08 RCX: ffffc90007e01000 kobject: 'loop0' (00000000ebf2bd5e): kobject_uevent_env RDX: 0000000000000005 RSI: ffffffff8340041e RDI: 0000000000000001 RBP: ffff88805ec4fba8 R08: ffff8880a0914180 R09: ffffed1011c58848 kobject: 'loop0' (00000000ebf2bd5e): fill_kobj_path: path = '/devices/virtual/block/loop0' R10: ffffed1011c58848 R11: 0000000000000001 R12: 0000000000000005 R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880ae700000(0063) knlGS:00000000f5f91b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007fcc3fba0000 CR3: 0000000059d7e000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400