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CVE-2026-53292: Linux

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CVSS

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: net: phonet: do not BUG_ON() in pn_socket_autobind() on failed bind syzbot reported a kernel BUG triggered from pn_socket_sendmsg() via pn_socket_autobind(): kernel BUG at net/phonet/socket.c:213! RIP: 0010:pn_socket_autobind net/phonet/socket.c:213 [inline] RIP: 0010:pn_socket_sendmsg+0x240/0x250 net/phonet/socket.c:421 Call Trace: sock_sendmsg_nosec+0x112/0x150 net/socket.c:797 __sock_sendmsg net/socket.c:812 [inline] __sys_sendto+0x402/0x590 net/socket.c:2280 ... pn_socket_autobind() calls pn_socket_bind() with port 0 and, on -EINVAL, assumes the socket was already bound and asserts that the port is non-zero: err = pn_socket_bind(sock, ..., sizeof(struct sockaddr_pn)); if (err != -EINVAL) return err; BUG_ON(!pn_port(pn_sk(sock->sk)->sobject)); return 0; /* socket was already bound */ However pn_socket_bind() also returns -EINVAL when sk->sk_state is not TCP_CLOSE, even when the socket has never been bound and pn_port() is still 0. In that case the BUG_ON() fires and panics the kernel from a user-triggerable path. Treat the "bind returned -EINVAL but pn_port() is still 0" case as a regular error and propagate -EINVAL to the caller instead of crashing. Existing callers already translate a non-zero return from pn_socket_autobind() into -ENOBUFS/-EAGAIN, so returning -EINVAL here only changes behaviour from panic to a normal errno.

    Засегнати продукти

    • Linux Linux: ba113a94b7503ee23ffe819e7045134b0c1d31de преди 6972021488e3142f30a89d8035eebeefbbe65656; ba113a94b7503ee23ffe819e7045134b0c1d31de преди 4255c8f756b78d07800baf3320bdbdc130c54193; ba113a94b7503ee23ffe819e7045134b0c1d31de преди 363c7fcac553dc2aa12fc90c6e5e6eba87500269; ba113a94b7503ee23ffe819e7045134b0c1d31de преди 5459933a799aaf642cbeb35fdf7e78c59bf2fb9b; ba113a94b7503ee23ffe819e7045134b0c1d31de преди 6db58ee730bf434d1afca91b91826e26688856ed; ba113a94b7503ee23ffe819e7045134b0c1d31de преди 5b0c911bcdbd982f7748d11c0b39ec5808eae2de
    • Linux Linux: 2.6.28; преди 2.6.28; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.114 до 6.12.*; 6.18.57 до 6.18.*; 7.0.10 до 7.0.*; от 7.1 нататък

    История

    • 26 юни 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-53292: Linux | freedomonline.bg