Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/srp: bound SRP_RSP sense copy by the received length srp_process_rsp() copies sense data from rsp->data + resp_data_len, where resp_data_len is the full 32-bit value supplied by the SRP target and is never checked against the number of bytes actually received (wc->byte_len). The copy length is bounded to SCSI_SENSE_BUFFERSIZE, so at most 96 bytes are copied, but the source offset is not bounded. A malicious or compromised SRP target on the InfiniBand/RoCE fabric that the initiator has logged into can return an SRP_RSP with SRP_RSP_FLAG_SNSVALID set and a large resp_data_len. The receive buffer is allocated at the target-chosen max_ti_iu_len, so the source of the sense copy lands past the bytes actually received; with resp_data_len near 0xFFFFFFFF it is gigabytes past the buffer and the read faults. Copy the sense data only if it has not been truncated, that is, only if the response header, the response data, and the sense region fit within the bytes actually received; otherwise drop the sense and log. The in-tree iSER and NVMe-RDMA receive paths already bound their parse by wc->byte_len; this brings ib_srp into line with them.

Affected products

VendorProductVersions
LinuxLinuxaef9ec39c47f0cece886ddd6b53c440321e0b2a6 to <3889517c2ec7f364914aea8209abfff735f7ecde; aef9ec39c47f0cece886ddd6b53c440321e0b2a6 to <ed77cc819ad631264787cade5ae5ec4c535ec6bb; aef9ec39c47f0cece886ddd6b53c440321e0b2a6 to <0b9ee09d5e849591f17d98c078033dadea967293; aef9ec39c47f0cece886ddd6b53c440321e0b2a6 to <0d64bc200ebe4f275b27438c6e593903e0b16fe1; aef9ec39c47f0cece886ddd6b53c440321e0b2a6 to <2015038195939eac54a1ee83c9d98ef1a8ccbbce; aef9ec39c47f0cece886ddd6b53c440321e0b2a6 to <f92a285db7ff6e598591ccbfb551be155c5f4d57; aef9ec39c47f0cece886ddd6b53c440321e0b2a6 to <3523e53ff95f1837ec3f57ff7558532bcb2661b7; aef9ec39c47f0cece886ddd6b53c440321e0b2a6 to <13e91fd076306f5d0cdfa14f53d69e37274723c4
LinuxLinux2.6.15; 0 to <2.6.15; 5.10.259 to <=5.10.*; 5.15.210 to <=5.15.*; 6.1.176 to <=6.1.*; 6.6.143 to <=6.6.*; 6.12.94 to <=6.12.*; 6.18.36 to <=6.18.*; 7.0.13 to <=7.0.*; 7.1 to <=*

References

Authoritative sources

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Generated from the official CVE List on 25 Jun 2026 10:14 UTC.