CVE-2026-23119

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  2. Vulnerabilities (CVE)
  3. CVE-2026-23119
CVSS

No CVSS.

I

n the Linux kernel, the following vulnerability has been resolved: bonding: provide a net pointer to __skb_flow_dissect() After 3cbf4ffba5ee ("net: plumb network namespace into __skb_flow_dissect") we have to provide a net pointer to __skb_flow_dissect(), either via skb->dev, skb->sk, or a user provided pointer. In the following case, syzbot was able to cook a bare skb. WARNING: net/core/flow_dissector.c:1131 at __skb_flow_dissect+0xb57/0x68b0 net/core/flow_dissector.c:1131, CPU#1: syz.2.1418/11053 Call Trace: <TASK> bond_flow_dissect drivers/net/bonding/bond_main.c:4093 [inline] __bond_xmit_hash+0x2d7/0xba0 drivers/net/bonding/bond_main.c:4157 bond_xmit_hash_xdp drivers/net/bonding/bond_main.c:4208 [inline] bond_xdp_xmit_3ad_xor_slave_get drivers/net/bonding/bond_main.c:5139 [inline] bond_xdp_get_xmit_slave+0x1fd/0x710 drivers/net/bonding/bond_main.c:5515 xdp_master_redirect+0x13f/0x2c0 net/core/filter.c:4388 bpf_prog_run_xdp include/net/xdp.h:700 [inline] bpf_test_run+0x6b2/0x7d0 net/bpf/test_run.c:421 bpf_prog_test_run_xdp+0x795/0x10e0 net/bpf/test_run.c:1390 bpf_prog_test_run+0x2c7/0x340 kernel/bpf/syscall.c:4703 __sys_bpf+0x562/0x860 kernel/bpf/syscall.c:6182 __do_sys_bpf kernel/bpf/syscall.c:6274 [inline] __se_sys_bpf kernel/bpf/syscall.c:6272 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6272 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94

References
Link Resource
https://git.kernel.org/stable/c/0efee0b992f28bd5ee01c7a86ef6a307c42eb907
https://git.kernel.org/stable/c/3be945abdd228fd00f6afcf8d137002867a4651b
https://git.kernel.org/stable/c/5f9b329096596b7e53e07d041d7fca4cbe1be752
https://git.kernel.org/stable/c/8e53780732ee881394406f79da5263b81eb48f7e
https://git.kernel.org/stable/c/bc3c8d2493c6f4d2038844dc8b7ee93de050f7fa
https://git.kernel.org/stable/c/de97735a40a144974bf3896ee4cc0270db2e47db
https://git.kernel.org/stable/c/f4faaa1297ecf3255a8591fff2633df05bd5ec84
Configurations

No configuration.

History

18 Feb 2026, 17:52

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta: bonding: proporcionar un puntero de red a __skb_flow_dissect() Después de 3cbf4ffba5ee ('net: integrar el espacio de nombres de red en __skb_flow_dissect') tenemos que proporcionar un puntero de red a __skb_flow_dissect(), ya sea a través de skb-&gt;dev, skb-&gt;sk, o un puntero proporcionado por el usuario. En el siguiente caso, syzbot pudo 'cocinar' un skb básico. ADVERTENCIA: net/core/flow_dissector.c:1131 en __skb_flow_dissect+0xb57/0x68b0 net/core/flow_dissector.c:1131, CPU#1: syz.2.1418/11053 Traza de Llamadas: bond_flow_dissect drivers/net/bonding/bond_main.c:4093 [en línea] __bond_xmit_hash+0x2d7/0xba0 drivers/net/bonding/bond_main.c:4157 bond_xmit_hash_xdp drivers/net/bonding/bond_main.c:4208 [en línea] bond_xdp_xmit_3ad_xor_slave_get drivers/net/bonding/bond_main.c:5139 [en línea] bond_xdp_get_xmit_slave+0x1fd/0x710 drivers/net/bonding/bond_main.c:5515 xdp_master_redirect+0x13f/0x2c0 net/core/filter.c:4388 bpf_prog_run_xdp include/net/xdp.h:700 [en línea] bpf_test_run+0x6b2/0x7d0 net/bpf/test_run.c:421 bpf_prog_test_run_xdp+0x795/0x10e0 net/bpf/test_run.c:1390 bpf_prog_test_run+0x2c7/0x340 kernel/bpf/syscall.c:4703 __sys_bpf+0x562/0x860 kernel/bpf/syscall.c:6182 __do_sys_bpf kernel/bpf/syscall.c:6274 [en línea] __se_sys_bpf kernel/bpf/syscall.c:6272 [en línea] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6272 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [en línea] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94

14 Feb 2026, 15:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-02-14 15:16

Updated : 2026-02-18 17:52

NVD link : CVE-2026-23119

Mitre link : CVE-2026-23119

CVE.ORG link : CVE-2026-23119

JSON object : View

Products Affected

No product.

CWE

No CWE.