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RDMA/srpt: Fix srpt_alloc_rw_ctxs() unwind counters

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-100075

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-100075

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "b99f8e4d7bcd3bfbb3cd965918523299370d0cb2",
        "lessThan": "af00051dbc9f467d4840ec709680660a3f8990fa",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b99f8e4d7bcd3bfbb3cd965918523299370d0cb2",
        "lessThan": "717ab4d0614e9446bf8e2de6229464499e4008d6",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b99f8e4d7bcd3bfbb3cd965918523299370d0cb2",
        "lessThan": "f1f2252da52cdda912da9993f39f58783b01b38f",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b99f8e4d7bcd3bfbb3cd965918523299370d0cb2",
        "lessThan": "f65f45dfa1e6e2eaa9e11c8b8ce8857799cb189d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b99f8e4d7bcd3bfbb3cd965918523299370d0cb2",
        "lessThan": "be1478849e1abb1e12dc12e14cdbf800cc6fa99a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b99f8e4d7bcd3bfbb3cd965918523299370d0cb2",
        "lessThan": "af073bd245180393bcb15d33d3990a6bdc32593a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b99f8e4d7bcd3bfbb3cd965918523299370d0cb2",
        "lessThan": "bd02d644bd19a2795c018635d273d91e45d2bb95",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b99f8e4d7bcd3bfbb3cd965918523299370d0cb2",
        "lessThan": "b38f98e176050850f41bb6415f3a71400056623e",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/infiniband/ulp/srpt/ib_srpt.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.7"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.7",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.270",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.221",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.188",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.157",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.110",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.52",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.6",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/infiniband/ulp/srpt/ib_srpt.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-100075

Source reference: /cveMetadata/cveId

Publisher severity

critical

Source reference: /containers/cna/metrics

Event
#34772 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement