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[syzbot] [sctp?] KMSAN: uninit-value in sctp_sf_ootb | 1 (2) | 2024/08/26 16:24 |
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[syzbot] [sctp?] KMSAN: uninit-value in sctp_sf_ootb | 1 (2) | 2024/08/26 16:24 |
===================================================== BUG: KMSAN: uninit-value in sctp_sf_ootb+0x7f5/0xce0 net/sctp/sm_statefuns.c:3702 sctp_sf_ootb+0x7f5/0xce0 net/sctp/sm_statefuns.c:3702 sctp_do_sm+0x181/0x93d0 net/sctp/sm_sideeffect.c:1166 sctp_endpoint_bh_rcv+0xc38/0xf90 net/sctp/endpointola.c:407 sctp_inq_push+0x2ef/0x380 net/sctp/inqueue.c:88 sctp_rcv+0x3831/0x3b20 net/sctp/input.c:243 sctp4_rcv+0x42/0x50 net/sctp/protocol.c:1158 ip_protocol_deliver_rcu+0xb51/0x13d0 net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x336/0x500 net/ipv4/ip_input.c:233 NF_HOOK include/linux/netfilter.h:314 [inline] ip_local_deliver+0x21f/0x490 net/ipv4/ip_input.c:254 dst_input include/net/dst.h:460 [inline] ip_rcv_finish+0x4a2/0x520 net/ipv4/ip_input.c:449 NF_HOOK include/linux/netfilter.h:314 [inline] ip_rcv+0xcd/0x380 net/ipv4/ip_input.c:569 __netif_receive_skb_one_core net/core/dev.c:5661 [inline] __netif_receive_skb+0x319/0xa00 net/core/dev.c:5775 netif_receive_skb_internal net/core/dev.c:5861 [inline] netif_receive_skb+0x58/0x660 net/core/dev.c:5921 tun_rx_batched+0x3ee/0x980 drivers/net/tun.c:1549 tun_get_user+0x5677/0x6b50 drivers/net/tun.c:2006 tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2052 new_sync_write fs/read_write.c:497 [inline] vfs_write+0xb2f/0x1550 fs/read_write.c:590 ksys_write+0x20f/0x4c0 fs/read_write.c:643 __do_sys_write fs/read_write.c:655 [inline] __se_sys_write fs/read_write.c:652 [inline] __x64_sys_write+0x93/0xe0 fs/read_write.c:652 x64_sys_call+0x306a/0x3ba0 arch/x86/include/generated/asm/syscalls_64.h:2 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Uninit was created at: slab_post_alloc_hook mm/slub.c:3994 [inline] slab_alloc_node mm/slub.c:4037 [inline] kmem_cache_alloc_node_noprof+0x6bf/0xb80 mm/slub.c:4080 kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:583 pskb_expand_head+0x222/0x19c0 net/core/skbuff.c:2259 __skb_cow include/linux/skbuff.h:3646 [inline] skb_cow include/linux/skbuff.h:3665 [inline] ip_rcv_options net/ipv4/ip_input.c:272 [inline] ip_rcv_finish_core+0xf3d/0x1fe0 net/ipv4/ip_input.c:387 ip_rcv_finish+0x2cc/0x520 net/ipv4/ip_input.c:447 NF_HOOK include/linux/netfilter.h:314 [inline] ip_rcv+0xcd/0x380 net/ipv4/ip_input.c:569 __netif_receive_skb_one_core net/core/dev.c:5661 [inline] __netif_receive_skb+0x319/0xa00 net/core/dev.c:5775 netif_receive_skb_internal net/core/dev.c:5861 [inline] netif_receive_skb+0x58/0x660 net/core/dev.c:5921 tun_rx_batched+0x3ee/0x980 drivers/net/tun.c:1549 tun_get_user+0x5677/0x6b50 drivers/net/tun.c:2006 tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2052 new_sync_write fs/read_write.c:497 [inline] vfs_write+0xb2f/0x1550 fs/read_write.c:590 ksys_write+0x20f/0x4c0 fs/read_write.c:643 __do_sys_write fs/read_write.c:655 [inline] __se_sys_write fs/read_write.c:652 [inline] __x64_sys_write+0x93/0xe0 fs/read_write.c:652 x64_sys_call+0x306a/0x3ba0 arch/x86/include/generated/asm/syscalls_64.h:2 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f CPU: 1 UID: 0 PID: 13990 Comm: syz.3.1326 Not tainted 6.11.0-rc4-syzkaller-00255-gd2bafcf224f3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 =====================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/08/24 20:15 | upstream | d2bafcf224f3 | d7d32352 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kmsan-gce-root | KMSAN: uninit-value in sctp_sf_ootb |