kasan: GPF could be caused by NULL-ptr deref or user memory access could not allocate digest TFM handle nhpoly1305-avx2 general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 40 Comm: kworker/u4:2 Not tainted 4.19.80 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 could not allocate digest TFM handle nhpoly1305-avx2 Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet RIP: 0010:batadv_iv_ogm_queue_add+0x49/0x1120 net/batman-adv/bat_iv_ogm.c:791 Code: 48 89 75 b8 48 89 4d c0 4c 89 45 b0 44 89 4d d0 e8 8c 51 98 fa 48 8d 7b 03 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 18 0d 00 00 RSP: 0018:ffff8880a98d7b68 EFLAGS: 00010246 could not allocate digest TFM handle nhpoly1305-avx2 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff8880a5a9b5c0 RDX: 0000000000000000 RSI: ffffffff86d275b4 RDI: 0000000000000003 RBP: ffff8880a98d7c00 R08: ffff8880a5a9b5c0 R09: 0000000000000001 R10: ffffed101531af74 R11: 0000000000000003 R12: dffffc0000000000 R13: ffff8880a5a9b5c0 R14: ffffed1014b536c7 R15: 000000010000810d could not allocate digest TFM handle nhpoly1305-avx2 FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000007136b4 CR3: 000000005f855000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 kobject: 'loop0' (0000000089c1a04e): kobject_uevent_env Call Trace: kobject: 'loop0' (0000000089c1a04e): fill_kobj_path: path = '/devices/virtual/block/loop0' batadv_iv_ogm_schedule+0xb72/0xf10 net/batman-adv/bat_iv_ogm.c:995 batadv_iv_send_outstanding_bat_ogm_packet+0x590/0x740 net/batman-adv/bat_iv_ogm.c:1823 process_one_work+0x989/0x1750 kernel/workqueue.c:2153 kobject: 'loop1' (000000009e5f1649): kobject_uevent_env kobject: 'loop1' (000000009e5f1649): fill_kobj_path: path = '/devices/virtual/block/loop1' worker_thread+0x98/0xe40 kernel/workqueue.c:2296 kthread+0x354/0x420 kernel/kthread.c:246 kobject: 'loop0' (0000000089c1a04e): kobject_uevent_env ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 kobject: 'loop0' (0000000089c1a04e): fill_kobj_path: path = '/devices/virtual/block/loop0' Modules linked in: ---[ end trace cd0a7f4a9b1ff017 ]--- kobject: 'loop1' (000000009e5f1649): kobject_uevent_env FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop1' (000000009e5f1649): fill_kobj_path: path = '/devices/virtual/block/loop1' CPU: 0 PID: 16108 Comm: syz-executor.2 Tainted: G D 4.19.80 #0 kobject: 'loop1' (000000009e5f1649): kobject_uevent_env Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 kobject: 'loop1' (000000009e5f1649): fill_kobj_path: path = '/devices/virtual/block/loop1' __should_failslab+0x121/0x190 mm/failslab.c:32 RIP: 0010:batadv_iv_ogm_queue_add+0x49/0x1120 net/batman-adv/bat_iv_ogm.c:791 should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc_node mm/slab.c:3304 [inline] kmem_cache_alloc_node_trace+0x274/0x720 mm/slab.c:3666 Code: 48 89 75 b8 48 89 4d c0 4c 89 45 b0 44 89 4d d0 e8 8c 51 98 fa 48 8d 7b 03 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 18 0d 00 00 __do_kmalloc_node mm/slab.c:3688 [inline] __kmalloc_node_track_caller+0x3d/0x80 mm/slab.c:3703 __kmalloc_reserve.isra.0+0x40/0xf0 net/core/skbuff.c:137 __alloc_skb+0x10b/0x5f0 net/core/skbuff.c:205 RSP: 0018:ffff8880a98d7b68 EFLAGS: 00010246 alloc_skb include/linux/skbuff.h:995 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1189 [inline] netlink_sendmsg+0x97b/0xd70 net/netlink/af_netlink.c:1883 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff8880a5a9b5c0 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:632 RDX: 0000000000000000 RSI: ffffffff86d275b4 RDI: 0000000000000003 sock_write_iter+0x27c/0x3e0 net/socket.c:901 RBP: ffff8880a98d7c00 R08: ffff8880a5a9b5c0 R09: 0000000000000001 call_write_iter include/linux/fs.h:1820 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x587/0x810 fs/read_write.c:487 R10: ffffed101531af74 R11: 0000000000000003 R12: dffffc0000000000 vfs_write+0x20c/0x560 fs/read_write.c:549 R13: ffff8880a5a9b5c0 R14: ffffed1014b536c7 R15: 000000010000810d ksys_write+0x14f/0x2d0 fs/read_write.c:599 FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 __do_sys_write fs/read_write.c:611 [inline] __se_sys_write fs/read_write.c:608 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:608 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 RIP: 0033:0x459f39 Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fa48f2ecc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 CR2: 00007f8d02cf7000 CR3: 0000000091593000 CR4: 00000000001406e0 RAX: ffffffffffffffda RBX: 00007fa48f2ecc90 RCX: 0000000000459f39 RDX: 00000000000002e4 RSI: 0000000020000140 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa48f2ed6d4 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 R13: 00000000004c68f2 R14: 00000000004e19c0 R15: 0000000000000004 could not allocate digest TFM handle nhpoly1305-avx2 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 could not allocate digest TFM handle nhpoly1305-avx2 kobject: 'loop2' (00000000588457a8): kobject_uevent_env