CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: net: guard timestamp cmsgs to real error queue skbs skb_is_err_queue() treats PACKET_OUTGOING as the sole marker for an skb from sk_error_queue. That assumption is not true for AF_PACKET sockets: outgoing packet taps are also delivered to packet sockets with skb->pkt_type == PACKET_OUTGOING, but their skb->cb is owned by AF_PACKET instead of struct sock_exterr_skb. If such an skb is received with timestamping enabled, the generic timestamp cmsg path can read AF_PACKET control-buffer state as sock_exterr_skb::opt_stats. With SO_RXQ_OVFL enabled, the packet drop counter overlaps opt_stats. An odd drop count makes the path emit SCM_TIMESTAMPING_OPT_STATS with skb->len and skb->data. For non-linear skbs this copies past the linear head and can trigger hardened usercopy or disclose adjacent heap contents. Keep skb_is_err_queue() local to net/socket.c, but make it verify that the PACKET_OUTGOING marker is paired with the sock_rmem_free destructor installed by sock_queue_err_skb(). AF_PACKET receive skbs use normal receive ownership and no longer pass as error-queue skbs, while legitimate sk_error_queue entries keep the PACKET_OUTGOING marker and sock_rmem_free ownership.
Засегнати продукти
- Linux Linux: 8605330aac5a5785630aec8f64378a54891937cc преди 24a0d548d3a765cd4558224e4f8e06e14cba26e3; 8605330aac5a5785630aec8f64378a54891937cc преди 71ff5cdd5da61d0438e902aa0fd68c28bc901abe; 8605330aac5a5785630aec8f64378a54891937cc преди ad9a0374ee6d11048e1f74cd5180bad58b9848b4; 8605330aac5a5785630aec8f64378a54891937cc преди b903e9b5629ec8dd6db92174070045bf81ad7060; 8605330aac5a5785630aec8f64378a54891937cc преди e0665b2a8e90bb08bd205062c75662b502d31797; 8605330aac5a5785630aec8f64378a54891937cc преди 3dde4fb941fa5649ab809f6cd3e20e0c424a4e31; 8605330aac5a5785630aec8f64378a54891937cc преди eb51a9ad3ceb01bc6c0fb608dbc856e03ee6f24a; 8605330aac5a5785630aec8f64378a54891937cc преди 1ee90b77b727df903033db873c75caac5c27ec98; cdaf15b43bd31003220cb080bcbbd57787a2fca9; 4.10.14 преди 4.11
- Linux Linux: 4.11; преди 4.11; 5.10.259 до 5.10.*; 5.15.210 до 5.15.*; 6.1.176 до 6.1.*; 6.6.143 до 6.6.*; 6.12.94 до 6.12.*; 6.18.36 до 6.18.*; 7.0.13 до 7.0.*; от 7.1 нататък
Siemens: още 3 продукта, добавени от Siemens
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP, SIPLUS S7-1500 CPU 1518-4 PN/DP MFP
Вид слабост
История
- 25 юни 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-53223
- https://nvd.nist.gov/vuln/detail/CVE-2026-53223
- https://git.kernel.org/stable/c/24a0d548d3a765cd4558224e4f8e06e14cba26e3
- https://git.kernel.org/stable/c/71ff5cdd5da61d0438e902aa0fd68c28bc901abe
- https://git.kernel.org/stable/c/ad9a0374ee6d11048e1f74cd5180bad58b9848b4
- https://git.kernel.org/stable/c/b903e9b5629ec8dd6db92174070045bf81ad7060
- https://git.kernel.org/stable/c/e0665b2a8e90bb08bd205062c75662b502d31797
- https://git.kernel.org/stable/c/3dde4fb941fa5649ab809f6cd3e20e0c424a4e31
- https://git.kernel.org/stable/c/eb51a9ad3ceb01bc6c0fb608dbc856e03ee6f24a
- https://git.kernel.org/stable/c/1ee90b77b727df903033db873c75caac5c27ec98
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html