Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KASAN: use-after-free Write in null_skcipher_crypt crypto | C | done | 3 | 912d | 1110d | 22/27 | fixed on 2023/02/24 13:50 |
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Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KASAN: use-after-free Write in null_skcipher_crypt crypto | C | done | 3 | 912d | 1110d | 22/27 | fixed on 2023/02/24 13:50 |
================================================================== BUG: KASAN: use-after-free in null_skcipher_crypt+0x14c/0x230 crypto/crypto_null.c:85 Write of size 4096 at addr ffff888169088000 by task syz-executor.3/8205 CPU: 1 PID: 8205 Comm: syz-executor.3 Tainted: G W 5.10.93-syzkaller-01028-g0347b1658399 #0 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_lvl+0x1e2/0x24b lib/dump_stack.c:118 print_address_description+0x8d/0x3d0 mm/kasan/report.c:233 __kasan_report+0x142/0x220 mm/kasan/report.c:419 kasan_report+0x51/0x70 mm/kasan/report.c:436 check_region_inline mm/kasan/generic.c:135 [inline] kasan_check_range+0x2b6/0x2f0 mm/kasan/generic.c:186 memcpy+0x44/0x70 mm/kasan/shadow.c:66 null_skcipher_crypt+0x14c/0x230 crypto/crypto_null.c:85 crypto_skcipher_encrypt+0xa4/0xe0 crypto/skcipher.c:636 crypto_authenc_encrypt+0x5a4/0xbd0 crypto/authenc.c:222 crypto_aead_encrypt+0xa4/0xe0 crypto/aead.c:94 esp6_output_tail+0xcb0/0x1850 net/ipv6/esp6.c:659 esp6_output+0x589/0x8d0 net/ipv6/esp6.c:735 xfrm_output_one net/xfrm/xfrm_output.c:473 [inline] xfrm_output_resume+0xe80/0x12b0 net/xfrm/xfrm_output.c:508 xfrm_output2 net/xfrm/xfrm_output.c:535 [inline] xfrm_output+0x32e/0x410 net/xfrm/xfrm_output.c:626 __xfrm6_output+0x409/0xad0 net/ipv6/xfrm6_output.c:94 NF_HOOK_COND include/linux/netfilter.h:293 [inline] xfrm6_output+0x140/0x300 net/ipv6/xfrm6_output.c:99 dst_output include/net/dst.h:443 [inline] ip6_local_out+0x212/0x490 net/ipv6/output_core.c:161 ip6_send_skb net/ipv6/ip6_output.c:1937 [inline] ip6_push_pending_frames+0x114/0x240 net/ipv6/ip6_output.c:1957 rawv6_push_pending_frames net/ipv6/raw.c:613 [inline] rawv6_sendmsg+0x24f7/0x2cd0 net/ipv6/raw.c:956 inet_sendmsg+0xa1/0xc0 net/ipv4/af_inet.c:821 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg net/socket.c:672 [inline] ____sys_sendmsg+0x5b9/0x910 net/socket.c:2343 ___sys_sendmsg net/socket.c:2397 [inline] __sys_sendmmsg+0x5ae/0x7f0 net/socket.c:2487 __do_sys_sendmmsg net/socket.c:2516 [inline] __se_sys_sendmmsg net/socket.c:2513 [inline] __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2513 do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f6937df0059 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f6936f66168 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f6937f02f60 RCX: 00007f6937df0059 RDX: 00000000000002e9 RSI: 0000000020000480 RDI: 0000000000000003 RBP: 00007f6937e4a08d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffb40545cf R14: 00007f6936f66300 R15: 0000000000022000 Allocated by task 7787: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:428 [inline] __kasan_slab_alloc+0xb2/0xe0 mm/kasan/common.c:461 kasan_slab_alloc include/linux/kasan.h:259 [inline] slab_post_alloc_hook mm/slab.h:583 [inline] slab_alloc_node mm/slub.c:2954 [inline] slab_alloc mm/slub.c:2962 [inline] kmem_cache_alloc+0x1a2/0x380 mm/slub.c:2967 kmem_cache_alloc_node include/linux/slab.h:423 [inline] __alloc_skb+0x7b/0x580 net/core/skbuff.c:199 alloc_skb include/linux/skbuff.h:1101 [inline] __ip6_append_data+0x29aa/0x3d80 net/ipv6/ip6_output.c:1660 ip6_append_data+0x1ab/0x2d0 net/ipv6/ip6_output.c:1829 rawv6_sendmsg+0x1e4f/0x2cd0 net/ipv6/raw.c:949 inet_sendmsg+0xa1/0xc0 net/ipv4/af_inet.c:821 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg net/socket.c:672 [inline] ____sys_sendmsg+0x5b9/0x910 net/socket.c:2343 ___sys_sendmsg net/socket.c:2397 [inline] __sys_sendmmsg+0x5ae/0x7f0 net/socket.c:2487 __do_sys_sendmmsg net/socket.c:2516 [inline] __se_sys_sendmmsg net/socket.c:2513 [inline] __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2513 do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 The buggy address belongs to the object at ffff888169088000 which belongs to the cache skbuff_head_cache of size 240 The buggy address is located 0 bytes inside of 240-byte region [ffff888169088000, ffff8881690880f0) The buggy address belongs to the page: page:ffffea0005a42200 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888169088280 pfn:0x169088 flags: 0x8000000000000200(slab) raw: 8000000000000200 ffffea00046f5b48 ffffea0004147b88 ffff888107fe2180 raw: ffff888169088280 00000000000c0004 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112cc0(GFP_USER|__GFP_NOWARN|__GFP_NORETRY), pid 7359, ts 2363207542878, free_ts 2363175526908 set_page_owner include/linux/page_owner.h:35 [inline] post_alloc_hook mm/page_alloc.c:2385 [inline] prep_new_page mm/page_alloc.c:2391 [inline] get_page_from_freelist+0xa74/0xa90 mm/page_alloc.c:4063 __alloc_pages_nodemask+0x3c8/0x820 mm/page_alloc.c:5106 alloc_slab_page mm/slub.c:1813 [inline] allocate_slab+0x6b/0x350 mm/slub.c:1815 new_slab mm/slub.c:1876 [inline] new_slab_objects mm/slub.c:2635 [inline] ___slab_alloc+0x143/0x2f0 mm/slub.c:2798 __slab_alloc mm/slub.c:2838 [inline] slab_alloc_node mm/slub.c:2920 [inline] slab_alloc mm/slub.c:2962 [inline] kmem_cache_alloc+0x26f/0x380 mm/slub.c:2967 kmem_cache_alloc_node include/linux/slab.h:423 [inline] __alloc_skb+0x7b/0x580 net/core/skbuff.c:199 alloc_skb include/linux/skbuff.h:1101 [inline] __ip6_append_data+0x29aa/0x3d80 net/ipv6/ip6_output.c:1660 ip6_append_data+0x1ab/0x2d0 net/ipv6/ip6_output.c:1829 rawv6_sendmsg+0x1e4f/0x2cd0 net/ipv6/raw.c:949 inet_sendmsg+0xa1/0xc0 net/ipv4/af_inet.c:821 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg net/socket.c:672 [inline] ____sys_sendmsg+0x5b9/0x910 net/socket.c:2343 ___sys_sendmsg net/socket.c:2397 [inline] __sys_sendmmsg+0x5ae/0x7f0 net/socket.c:2487 __do_sys_sendmmsg net/socket.c:2516 [inline] __se_sys_sendmmsg net/socket.c:2513 [inline] __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2513 do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 page last free stack trace: reset_page_owner include/linux/page_owner.h:28 [inline] free_pages_prepare mm/page_alloc.c:1331 [inline] free_pcp_prepare+0x18f/0x1c0 mm/page_alloc.c:1405 free_unref_page_prepare mm/page_alloc.c:3291 [inline] free_unref_page mm/page_alloc.c:3341 [inline] free_the_page mm/page_alloc.c:5165 [inline] __free_pages+0x2e3/0x4a0 mm/page_alloc.c:5173 __vunmap+0x856/0x980 mm/vmalloc.c:2275 free_work+0x66/0x90 mm/vmalloc.c:68 process_one_work+0x6b4/0xfb0 kernel/workqueue.c:2298 worker_thread+0xb15/0x1600 kernel/workqueue.c:2444 kthread+0x371/0x390 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 Memory state around the buggy address: ffff888169087f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888169087f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff888169088000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888169088080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc ffff888169088100: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2022/01/21 21:20 | android12-5.10-lts | 0347b1658399 | 214351e1 | .config | console log | report | info | ci2-android-5-10 | KASAN: use-after-free Write in null_skcipher_crypt |