CVE-2026-100075

Summary

In the Linux kernel, the following vulnerability has been resolved:

RDMA/srpt: Fix srpt_alloc_rw_ctxs() unwind counters

When srpt_alloc_rw_ctxs() fails partway through a multi-buffer indirect descriptor, the unwind path destroys RDMA contexts but leaves stale n_rw_ctx and n_rdma values (and a dangling rw_ctxs pointer). Later sq_wr_avail accounting in srpt_queue_response() or srpt_write_pending() can then subtract the wrong number of send queue credits.

Reset the counters and clear rw_ctxs after freeing the heap allocation before returning an error.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxb99f8e4d7bcd3bfbb3cd965918523299370d0cb2 < af00051dbc9f467d4840ec709680660a3f8990faaffected
LinuxLinuxb99f8e4d7bcd3bfbb3cd965918523299370d0cb2 < 717ab4d0614e9446bf8e2de6229464499e4008d6affected
LinuxLinuxb99f8e4d7bcd3bfbb3cd965918523299370d0cb2 < f1f2252da52cdda912da9993f39f58783b01b38faffected
LinuxLinuxb99f8e4d7bcd3bfbb3cd965918523299370d0cb2 < f65f45dfa1e6e2eaa9e11c8b8ce8857799cb189daffected
LinuxLinuxb99f8e4d7bcd3bfbb3cd965918523299370d0cb2 < be1478849e1abb1e12dc12e14cdbf800cc6fa99aaffected
LinuxLinuxb99f8e4d7bcd3bfbb3cd965918523299370d0cb2 < af073bd245180393bcb15d33d3990a6bdc32593aaffected
LinuxLinuxb99f8e4d7bcd3bfbb3cd965918523299370d0cb2 < bd02d644bd19a2795c018635d273d91e45d2bb95affected
LinuxLinuxb99f8e4d7bcd3bfbb3cd965918523299370d0cb2 < b38f98e176050850f41bb6415f3a71400056623eaffected
LinuxLinux4.7affected
LinuxLinux0 < 4.7unaffected
LinuxLinux5.10.270 <= 5.10.*unaffected
LinuxLinux5.15.221 <= 5.15.*unaffected
LinuxLinux6.1.188 <= 6.1.*unaffected
LinuxLinux6.6.157 <= 6.6.*unaffected
LinuxLinux6.12.110 <= 6.12.*unaffected
LinuxLinux6.18.52 <= 6.18.*unaffected
LinuxLinux7.2.6 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References