Title | Replies (including bot) | Last reply |
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[PATCH ipsec] xfrm: state: fix out-of-bounds read during lookup | 2 (2) | 2024/12/06 10:52 |
[syzbot] [net?] KASAN: slab-out-of-bounds Read in xfrm_state_find | 1 (2) | 2024/11/26 14:54 |
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Title | Replies (including bot) | Last reply |
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[PATCH ipsec] xfrm: state: fix out-of-bounds read during lookup | 2 (2) | 2024/12/06 10:52 |
[syzbot] [net?] KASAN: slab-out-of-bounds Read in xfrm_state_find | 1 (2) | 2024/11/26 14:54 |
================================================================== BUG: KASAN: slab-out-of-bounds in __xfrm_state_lookup_all net/xfrm/xfrm_state.c:1045 [inline] BUG: KASAN: slab-out-of-bounds in xfrm_state_find+0x6578/0x68c0 net/xfrm/xfrm_state.c:1288 Read of size 8 at addr ffff88802e87a6c0 by task syz.2.4311/22836 CPU: 1 UID: 0 PID: 22836 Comm: syz.2.4311 Not tainted 6.12.0-rc6-syzkaller-00099-g7758b206117d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: <TASK> __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:377 [inline] print_report+0xc3/0x620 mm/kasan/report.c:488 kasan_report+0xd9/0x110 mm/kasan/report.c:601 __xfrm_state_lookup_all net/xfrm/xfrm_state.c:1045 [inline] xfrm_state_find+0x6578/0x68c0 net/xfrm/xfrm_state.c:1288 xfrm_tmpl_resolve_one net/xfrm/xfrm_policy.c:2507 [inline] xfrm_tmpl_resolve net/xfrm/xfrm_policy.c:2558 [inline] xfrm_resolve_and_create_bundle+0x4bc/0x3650 net/xfrm/xfrm_policy.c:2852 xfrm_lookup_with_ifid+0x259/0x1df0 net/xfrm/xfrm_policy.c:3186 xfrm_lookup net/xfrm/xfrm_policy.c:3315 [inline] xfrm_lookup_route+0x3b/0x200 net/xfrm/xfrm_policy.c:3326 ip6_dst_lookup_flow+0x15c/0x1d0 net/ipv6/ip6_output.c:1265 rawv6_sendmsg+0xd5a/0x43d0 net/ipv6/raw.c:898 inet_sendmsg+0x119/0x140 net/ipv4/af_inet.c:853 sock_sendmsg_nosec net/socket.c:729 [inline] __sock_sendmsg net/socket.c:744 [inline] ____sys_sendmsg+0x98c/0xc90 net/socket.c:2607 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2661 __sys_sendmmsg+0x1a1/0x450 net/socket.c:2747 __do_sys_sendmmsg net/socket.c:2776 [inline] __se_sys_sendmmsg net/socket.c:2773 [inline] __x64_sys_sendmmsg+0x9c/0x100 net/socket.c:2773 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f64b277e719 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f64b3632038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f64b2936058 RCX: 00007f64b277e719 RDX: 0000000000000021 RSI: 0000000020000480 RDI: 000000000000000e RBP: 00007f64b27f139e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f64b2936058 R15: 00007ffe9a51e4e8 </TASK> Allocated by task 5916: kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:377 [inline] __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394 kasan_kmalloc include/linux/kasan.h:257 [inline] __do_kmalloc_node mm/slub.c:4264 [inline] __kmalloc_noprof+0x1e8/0x400 mm/slub.c:4276 kmalloc_noprof include/linux/slab.h:882 [inline] kzalloc_noprof include/linux/slab.h:1014 [inline] xfrm_hash_alloc+0xd1/0x100 net/xfrm/xfrm_hash.c:21 xfrm_hash_resize+0x8c/0x22a0 net/xfrm/xfrm_state.c:168 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 The buggy address belongs to the object at ffff88802e87a600 which belongs to the cache kmalloc-128 of size 128 The buggy address is located 64 bytes to the right of allocated 128-byte region [ffff88802e87a600, ffff88802e87a680) The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88802e87a900 pfn:0x2e87a anon flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 00fff00000000000 ffff88801b041a00 0000000000000000 dead000000000001 raw: ffff88802e87a900 000000008010000f 00000001f5000000 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 0x52820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 5825, tgid 5825 (syz-executor), ts 54933774480, free_ts 54907017929 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1545 [inline] get_page_from_freelist+0xf7d/0x2d10 mm/page_alloc.c:3457 __alloc_pages_noprof+0x223/0x25a0 mm/page_alloc.c:4733 alloc_pages_mpol_noprof+0x2c9/0x610 mm/mempolicy.c:2265 alloc_slab_page mm/slub.c:2412 [inline] allocate_slab mm/slub.c:2578 [inline] new_slab+0x2c9/0x410 mm/slub.c:2631 ___slab_alloc+0xdac/0x1880 mm/slub.c:3818 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3908 __slab_alloc_node mm/slub.c:3961 [inline] slab_alloc_node mm/slub.c:4122 [inline] __kmalloc_cache_noprof+0x2b4/0x300 mm/slub.c:4290 kmalloc_noprof include/linux/slab.h:878 [inline] __hw_addr_create net/core/dev_addr_lists.c:60 [inline] __hw_addr_add_ex+0x3c8/0x7c0 net/core/dev_addr_lists.c:118 __dev_mc_add net/core/dev_addr_lists.c:867 [inline] dev_mc_add+0xb6/0x110 net/core/dev_addr_lists.c:885 igmp6_group_added+0x395/0x480 net/ipv6/mcast.c:681 __ipv6_dev_mc_inc+0x72a/0xc10 net/ipv6/mcast.c:950 ipv6_add_dev+0xb04/0x13f0 net/ipv6/addrconf.c:471 addrconf_notify+0x53e/0x19c0 net/ipv6/addrconf.c:3655 notifier_call_chain+0xb9/0x410 kernel/notifier.c:93 call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:1996 page last free pid 58 tgid 58 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0x5f4/0xdc0 mm/page_alloc.c:2638 __put_partials+0x14c/0x170 mm/slub.c:3145 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x192/0x1e0 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4085 [inline] slab_alloc_node mm/slub.c:4134 [inline] kmem_cache_alloc_node_noprof+0x153/0x310 mm/slub.c:4186 __alloc_skb+0x2b1/0x380 net/core/skbuff.c:668 alloc_skb include/linux/skbuff.h:1322 [inline] nlmsg_new include/net/netlink.h:1015 [inline] rtmsg_ifinfo_build_skb+0x81/0x280 net/core/rtnetlink.c:4099 rtmsg_ifinfo_event net/core/rtnetlink.c:4141 [inline] rtmsg_ifinfo_event net/core/rtnetlink.c:4131 [inline] rtmsg_ifinfo+0x9f/0x1a0 net/core/rtnetlink.c:4150 netdev_state_change net/core/dev.c:1380 [inline] netdev_state_change+0x12f/0x150 net/core/dev.c:1371 linkwatch_do_dev+0x12b/0x160 net/core/link_watch.c:177 __linkwatch_run_queue+0x233/0x690 net/core/link_watch.c:234 linkwatch_event+0x8f/0xc0 net/core/link_watch.c:277 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391 kthread+0x2c1/0x3a0 kernel/kthread.c:389 Memory state around the buggy address: ffff88802e87a580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88802e87a600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff88802e87a680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff88802e87a700: 00 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc ffff88802e87a780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
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2024/11/07 04:40 | upstream | 7758b206117d | df3dc63b | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-selinux-root | KASAN: slab-out-of-bounds Read in xfrm_state_find |