general protection fault in __free_vmap

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.14	KASAN: use-after-free Read in __free_vmap_area				1	1367d	1367d	0/1	auto-closed as invalid on 2021/06/25 08:49

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: 8143 Comm: syz-executor.4 Not tainted 4.19.193-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:rb_set_parent_color include/linux/rbtree_augmented.h:131 [inline]
RIP: 0010:____rb_erase_color lib/rbtree.c:375 [inline]
RIP: 0010:rb_erase+0x669/0x1290 lib/rbtree.c:462
Code: ef 48 89 14 24 e8 37 0e aa f9 48 8b 14 24 e9 d5 fe ff ff 4c 89 e8 49 89 ee 4c 89 6d 10 48 c1 e8 03 49 89 6c 24 08 49 83 ce 01 <80> 3c 18 00 0f 85 70 0a 00 00 48 89 e8 4d 89 75 00 48 c1 e8 03 80
RSP: 0018:ffff88807535fa48 EFLAGS: 00010286
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffffff81905e28
RDX: fffffbfff1a49c6c RSI: ffffffff8d24e360 RDI: ffff88800013e120
RBP: ffff8880a9eb1b98 R08: 0000000000000000 R09: ffffc90015b45000
R10: 0000000000000006 R11: 0000000000000000 R12: ffff88800013e118
R13: 0000000000000000 R14: ffff8880a9eb1b99 R15: ffffffff8d24e360
FS:  0000000002452400(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000001d80708 CR3: 0000000075324000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __free_vmap_area+0x115/0x360 mm/vmalloc.c:577
 __purge_vmap_area_lazy+0x17c/0x280 mm/vmalloc.c:687
 try_purge_vmap_area_lazy mm/vmalloc.c:702 [inline]
 free_vmap_area_noflush+0xd4/0x100 mm/vmalloc.c:734
 free_unmap_vmap_area mm/vmalloc.c:747 [inline]
 remove_vm_area+0x263/0x2f0 mm/vmalloc.c:1495
 __vunmap+0x187/0x3f0 mm/vmalloc.c:1523
 vfree+0x65/0x100 mm/vmalloc.c:1598
 copy_entries_to_user net/ipv6/netfilter/ip6_tables.c:886 [inline]
 get_entries net/ipv6/netfilter/ip6_tables.c:1044 [inline]
 do_ip6t_get_ctl+0x719/0x910 net/ipv6/netfilter/ip6_tables.c:1714
 nf_sockopt net/netfilter/nf_sockopt.c:104 [inline]
 nf_getsockopt+0x72/0xd0 net/netfilter/nf_sockopt.c:122
 ipv6_getsockopt+0x1b6/0x260 net/ipv6/ipv6_sockglue.c:1388
 tcp_getsockopt+0x86/0xd0 net/ipv4/tcp.c:3629
 __sys_getsockopt+0x135/0x210 net/socket.c:1938
 __do_sys_getsockopt net/socket.c:1949 [inline]
 __se_sys_getsockopt net/socket.c:1946 [inline]
 __x64_sys_getsockopt+0xba/0x150 net/socket.c:1946
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x467bea
Code: 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 37 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff4936a2a8 EFLAGS: 00000212 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 0000000000000029 RCX: 0000000000467bea
RDX: 0000000000000041 RSI: 0000000000000029 RDI: 0000000000000003
RBP: 00007fff4936a2d0 R08: 00007fff4936a2cc R09: 0079746972756365
R10: 00007fff4936a330 R11: 0000000000000212 R12: 00007fff4936a330
R13: 0000000000000003 R14: 00007fff4936a2cc R15: 0000000000544640
Modules linked in:
---[ end trace 1db4f96302af5cc3 ]---
RIP: 0010:rb_set_parent_color include/linux/rbtree_augmented.h:131 [inline]
RIP: 0010:____rb_erase_color lib/rbtree.c:375 [inline]
RIP: 0010:rb_erase+0x669/0x1290 lib/rbtree.c:462
Code: ef 48 89 14 24 e8 37 0e aa f9 48 8b 14 24 e9 d5 fe ff ff 4c 89 e8 49 89 ee 4c 89 6d 10 48 c1 e8 03 49 89 6c 24 08 49 83 ce 01 <80> 3c 18 00 0f 85 70 0a 00 00 48 89 e8 4d 89 75 00 48 c1 e8 03 80
RSP: 0018:ffff88807535fa48 EFLAGS: 00010286
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffffff81905e28
RDX: fffffbfff1a49c6c RSI: ffffffff8d24e360 RDI: ffff88800013e120
RBP: ffff8880a9eb1b98 R08: 0000000000000000 R09: ffffc90015b45000
R10: 0000000000000006 R11: 0000000000000000 R12: ffff88800013e118
R13: 0000000000000000 R14: ffff8880a9eb1b99 R15: ffffffff8d24e360
FS:  0000000002452400(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000001d80708 CR3: 0000000075324000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2021/06/03 12:38	linux-4.19.y	1722257b8ece	0740de69	.config	console log	report			info		ci2-linux-4-19	general protection fault in __free_vmap_area
2021/06/02 08:59	linux-4.19.y	6b7b0056defc	0740de69	.config	console log	report			info		ci2-linux-4-19	general protection fault in __free_vmap_area