KASAN: slab-use-after-free Read in sk_psock_verdict_data

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	KASAN: slab-use-after-free Read in sk_psock_verdict_data_ready (2) bpf net				2	12d	37d	0/28	upstream: reported on 2024/11/13 15:05
android-5-15	KASAN: use-after-free Read in sk_psock_verdict_data_ready				12	9d18h	109d	0/2	premoderation: reported on 2024/09/02 22:21
upstream	general protection fault in sk_psock_verdict_data_ready net				2	564d	569d	0/28	auto-obsoleted due to no activity on 2023/09/14 09:29
upstream	BUG: unable to handle kernel NULL pointer dereference in sk_psock_verdict_data_ready net bpf	C	unreliable		15	293d	413d	25/28	fixed on 2024/04/02 10:57
linux-5.15	KASAN: use-after-free Read in sk_psock_verdict_data_ready				1	125d	125d	0/3	auto-obsoleted due to no activity on 2024/11/26 04:55
android-6-1	KASAN: use-after-free Read in sk_psock_verdict_data_ready				2	41d	74d	0/2	premoderation: reported on 2024/10/08 03:06
android-6-1	BUG: unable to handle kernel NULL pointer dereference in sk_psock_verdict_data_ready origin:upstream missing-backport	C			204	174d	312d	0/2	auto-obsoleted due to no activity on 2024/09/07 14:49
linux-6.1	BUG: unable to handle kernel NULL pointer dereference in sk_psock_verdict_data_ready origin:upstream	C		done	1	310d	310d	3/3	fixed on 2024/03/18 12:46

================================================================== BUG: KASAN: slab-use-after-free in sk_psock_verdict_data_ready+0x6d/0x390 net/core/skmsg.c:1220 Read of size 8 at addr ffff888076bac220 by task syz-executor.4/7751 CPU: 1 PID: 7751 Comm: syz-executor.4 Not tainted 6.10.0-rc1-syzkaller-g7d0b3953f6d8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 print_address_description mm/kasan/report.c:377 [inline] print_report+0x169/0x550 mm/kasan/report.c:488 kasan_report+0x143/0x180 mm/kasan/report.c:601 sk_psock_verdict_data_ready+0x6d/0x390 net/core/skmsg.c:1220 unix_stream_sendmsg+0x7d5/0xf80 net/unix/af_unix.c:2299 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2585 ___sys_sendmsg net/socket.c:2639 [inline] __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2668 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fcb3727cee9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fcb37fc20c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fcb373b3fa0 RCX: 00007fcb3727cee9 RDX: 0000000000000000 RSI: 0000000020000500 RDI: 000000000000000a RBP: 00007fcb372c947f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fcb373b3fa0 R15: 00007ffdc45ceac8 </TASK> Allocated by task 7751: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:312 [inline] __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slub.c:3940 [inline] slab_alloc_node mm/slub.c:4000 [inline] kmem_cache_alloc_lru_noprof+0x139/0x2b0 mm/slub.c:4019 sock_alloc_inode+0x28/0xc0 net/socket.c:308 alloc_inode fs/inode.c:261 [inline] new_inode_pseudo+0x69/0x1e0 fs/inode.c:1007 sock_alloc net/socket.c:634 [inline] __sock_create+0x123/0x920 net/socket.c:1535 sock_create net/socket.c:1622 [inline] __sys_socketpair+0x2ca/0x720 net/socket.c:1769 __do_sys_socketpair net/socket.c:1822 [inline] __se_sys_socketpair net/socket.c:1819 [inline] __x64_sys_socketpair+0x9b/0xb0 net/socket.c:1819 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Freed by task 7759: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579 poison_slab_object+0xe0/0x150 mm/kasan/common.c:240 __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2195 [inline] slab_free mm/slub.c:4436 [inline] kmem_cache_free+0x145/0x350 mm/slub.c:4511 rcu_do_batch kernel/rcu/tree.c:2535 [inline] rcu_core+0xafd/0x1830 kernel/rcu/tree.c:2809 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 Last potentially related work creation: kasan_save_stack+0x3f/0x60 mm/kasan/common.c:47 __kasan_record_aux_stack+0xac/0xc0 mm/kasan/generic.c:541 __call_rcu_common kernel/rcu/tree.c:3072 [inline] call_rcu+0x167/0xa70 kernel/rcu/tree.c:3176 __dentry_kill+0x20d/0x630 fs/dcache.c:603 dput+0x19f/0x2b0 fs/dcache.c:845 __fput+0x68c/0x8b0 fs/file_table.c:430 __do_sys_close fs/open.c:1555 [inline] __se_sys_close fs/open.c:1540 [inline] __x64_sys_close+0x7f/0x110 fs/open.c:1540 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f The buggy address belongs to the object at ffff888076bac200 which belongs to the cache sock_inode_cache of size 1408 The buggy address is located 32 bytes inside of freed 1408-byte region [ffff888076bac200, ffff888076bac780) The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x76ba8 head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 memcg:ffff888029abeb01 ksm flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffefff(slab) raw: 00fff00000000040 ffff888018ae0c80 ffffea0001764200 dead000000000003 raw: 0000000000000000 0000000000150015 00000001ffffefff ffff888029abeb01 head: 00fff00000000040 ffff888018ae0c80 ffffea0001764200 dead000000000003 head: 0000000000000000 0000000000150015 00000001ffffefff ffff888029abeb01 head: 00fff00000000003 ffffea0001daea01 ffffffffffffffff 0000000000000000 head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Reclaimable, gfp_mask 0xd20d0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_RECLAIMABLE), pid 5126, tgid 5126 (syz-executor.3), ts 61185062622, free_ts 14964246723 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1468 prep_new_page mm/page_alloc.c:1476 [inline] get_page_from_freelist+0x2e2d/0x2ee0 mm/page_alloc.c:3402 __alloc_pages_noprof+0x256/0x6c0 mm/page_alloc.c:4660 __alloc_pages_node_noprof include/linux/gfp.h:269 [inline] alloc_pages_node_noprof include/linux/gfp.h:296 [inline] alloc_slab_page+0x5f/0x120 mm/slub.c:2264 allocate_slab+0x5a/0x2e0 mm/slub.c:2427 new_slab mm/slub.c:2480 [inline] ___slab_alloc+0xcd1/0x14b0 mm/slub.c:3666 __slab_alloc+0x58/0xa0 mm/slub.c:3756 __slab_alloc_node mm/slub.c:3809 [inline] slab_alloc_node mm/slub.c:3988 [inline] kmem_cache_alloc_lru_noprof+0x1c5/0x2b0 mm/slub.c:4019 sock_alloc_inode+0x28/0xc0 net/socket.c:308 alloc_inode fs/inode.c:261 [inline] new_inode_pseudo+0x69/0x1e0 fs/inode.c:1007 sock_alloc net/socket.c:634 [inline] __sock_create+0x123/0x920 net/socket.c:1535 sock_create net/socket.c:1622 [inline] __sys_socket_create net/socket.c:1659 [inline] __sys_socket+0x150/0x3c0 net/socket.c:1706 __do_sys_socket net/socket.c:1720 [inline] __se_sys_socket net/socket.c:1718 [inline] __x64_sys_socket+0x7a/0x90 net/socket.c:1718 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 1 tgid 1 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1088 [inline] free_unref_page+0xd22/0xea0 mm/page_alloc.c:2565 free_contig_range+0x9e/0x160 mm/page_alloc.c:6619 destroy_args+0x8a/0x890 mm/debug_vm_pgtable.c:1038 debug_vm_pgtable+0x4be/0x550 mm/debug_vm_pgtable.c:1418 do_one_initcall+0x248/0x880 init/main.c:1267 do_initcall_level+0x157/0x210 init/main.c:1329 do_initcalls+0x3f/0x80 init/main.c:1345 kernel_init_freeable+0x435/0x5d0 init/main.c:1578 kernel_init+0x1d/0x2b0 init/main.c:1467 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Memory state around the buggy address: ffff888076bac100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888076bac180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888076bac200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888076bac280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888076bac300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2024/06/02 11:02	bpf	7d0b3953f6d8	3113787f	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-bpf-kasan-gce	KASAN: slab-use-after-free Read in sk_psock_verdict_data_ready

Crashes (1):

Assets (help?)