tipc: 32-bit node address hash set to 10003ff ================================================================== BUG: KASAN: use-after-free in tipc_named_reinit+0x194/0x340 net/tipc/name_distr.c:344 Read of size 8 at addr ffff88813de8e000 by task kworker/1:213/31928 CPU: 1 PID: 31928 Comm: kworker/1:213 Not tainted 5.4.32-syzkaller-00194-ga9154741b880 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events tipc_net_finalize_work Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x14a/0x1ce lib/dump_stack.c:118 print_address_description+0x93/0x620 mm/kasan/report.c:374 __kasan_report+0x16d/0x1e0 mm/kasan/report.c:506 kasan_report+0x34/0x60 mm/kasan/common.c:634 tipc_named_reinit+0x194/0x340 net/tipc/name_distr.c:344 tipc_net_finalize+0xc7/0x130 net/tipc/net.c:138 tipc_net_finalize_work+0x50/0x70 net/tipc/net.c:150 process_one_work+0x777/0xf90 kernel/workqueue.c:2274 worker_thread+0xa8f/0x1430 kernel/workqueue.c:2420 kthread+0x2df/0x300 kernel/kthread.c:255 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352 kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 31928 Comm: kworker/1:213 Not tainted 5.4.32-syzkaller-00194-ga9154741b880 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events tipc_net_finalize_work RIP: 0010:nearest_obj include/linux/slub_def.h:176 [inline] RIP: 0010:print_address_description+0x44f/0x620 mm/kasan/report.c:379 Code: f7 01 00 02 00 00 0f 84 90 fc ff ff 4c 8b 63 18 48 89 d8 48 c1 e0 06 48 b9 00 00 00 00 80 08 05 00 48 01 c1 4c 89 f0 48 29 c8 <41> 8b 7c 24 18 48 99 48 f7 ff 4c 89 f0 48 29 d0 0f b7 73 2a 81 e6 RSP: 0018:ffff88817ae6fb70 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffffea0004f7a380 RCX: ffff88813de8e000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff88817ae6fc10 R08: ffffffff812be90e R09: ffffed103b723e9a R10: ffffed103b723e9a R11: 0000000000000000 R12: dead000000000400 R13: 000000000001ffff R14: ffff88813de8e000 R15: ffff88813de8e000 FS: 0000000000000000(0000) GS:ffff8881db900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000748000 CR3: 000000019dd57001 CR4: 00000000001606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __kasan_report+0x16d/0x1e0 mm/kasan/report.c:506 kasan_report+0x34/0x60 mm/kasan/common.c:634 tipc_named_reinit+0x194/0x340 net/tipc/name_distr.c:344 tipc_net_finalize+0xc7/0x130 net/tipc/net.c:138 tipc_net_finalize_work+0x50/0x70 net/tipc/net.c:150 process_one_work+0x777/0xf90 kernel/workqueue.c:2274 worker_thread+0xa8f/0x1430 kernel/workqueue.c:2420 kthread+0x2df/0x300 kernel/kthread.c:255 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352 Modules linked in: ---[ end trace a4b07c024bcb5159 ]--- RIP: 0010:nearest_obj include/linux/slub_def.h:176 [inline] RIP: 0010:print_address_description+0x44f/0x620 mm/kasan/report.c:379 Code: f7 01 00 02 00 00 0f 84 90 fc ff ff 4c 8b 63 18 48 89 d8 48 c1 e0 06 48 b9 00 00 00 00 80 08 05 00 48 01 c1 4c 89 f0 48 29 c8 <41> 8b 7c 24 18 48 99 48 f7 ff 4c 89 f0 48 29 d0 0f b7 73 2a 81 e6 RSP: 0018:ffff88817ae6fb70 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffffea0004f7a380 RCX: ffff88813de8e000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff88817ae6fc10 R08: ffffffff812be90e R09: ffffed103b723e9a R10: ffffed103b723e9a R11: 0000000000000000 R12: dead000000000400 R13: 000000000001ffff R14: ffff88813de8e000 R15: ffff88813de8e000 FS: 0000000000000000(0000) GS:ffff8881db900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000748000 CR3: 000000019dd57001 CR4: 00000000001606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400