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CVE-2026-52939

In the Linux kernel, the following vulnerability has been resolved: net/rds: fix NULL deref in rds_ib_send_cqe_handler() on masked atomic completion rds_ib_xmit_atomic() always programs a masked atomic opcode (IB_WR_MASKED_ATOMIC_CMP_AND_SWP or IB_WR_MASKED_ATOMIC_FETCH_AND_ADD) for every RDS atomic cmsg. But the completion-side switch in rds_ib_send_unmap_op() only handles the non-masked opcodes, so a masked atomic completion falls through to default and returns rm == NULL while send->s_op i
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:de0f3bfaad50e22a4815458a8e2b0f5abdc55fa2eb6d664747b5c220116d9b9c
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"affected","product":"Linux","programFiles":["net/rds/ib_send.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.37"},{"lessThan":"2.6.37","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessTha…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:88d0b2426beb3ecd6b48cb9749825ae18963d89af674988b69bd262b8fe1b8e4 · sha256:fb6f55df35e1d51e… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/rds/ib_send.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a0148342badd8c9b2e46551766a27cb76c82e715","status":"affected","version":"20c72bd5f5f902e5a8745d51573699605bf8d21c","versionType":"git"},{"lessThan":"4dd262f875e87653df50b138de1390ab0628e6b7","status":"affected","version":"20c72bd5f5f902e5a8745d51573699605bf8d21c","versionType":"git"},{"lessThan":"6e4615164d185a26badb2f376a2449f4d174a5f0","status":"affected","version":"20c72bd5f5f902e5a8745d515736…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:88d0b2426beb3ecd6b48cb9749825ae18963d89af674988b69bd262b8fe1b8e4 · sha256:fb6f55df35e1d51e… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["net/rds/ib_send.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.37"},{"lessThan":"2.6.37","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessTha…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:88d0b2426beb3ecd6b48cb9749825ae18963d89af674988b69bd262b8fe1b8e4 · sha256:fb6f55df35e1d51e… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/rds/ib_send.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a0148342badd8c9b2e46551766a27cb76c82e715","status":"affected","version":"20c72bd5f5f902e5a8745d51573699605bf8d21c","versionType":"git"},{"lessThan":"4dd262f875e87653df50b138de1390ab0628e6b7","status":"affected","version":"20c72bd5f5f902e5a8745d51573699605bf8d21c","versionType":"git"},{"lessThan":"6e4615164d185a26badb2f376a2449f4d174a5f0","status":"affected","version":"20c72bd5f5f902e5a8745d515736…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:88d0b2426beb3ecd6b48cb9749825ae18963d89af674988b69bd262b8fe1b8e4 · sha256:fb6f55df35e1d51e… · /containers/cna/affected/0

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/0f22412a2f4fbbe0251c132abee045d15a90e5b6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:88d0b2426beb3ecd6b48cb9749825ae18963d89af674988b69bd262b8fe1b8e4 · sha256:fb6f55df35e1d51e… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/0f7baa82a24813cdad0b06a6f8f07e4824af5ed5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:88d0b2426beb3ecd6b48cb9749825ae18963d89af674988b69bd262b8fe1b8e4 · sha256:fb6f55df35e1d51e… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/34080db3e70ddf94c38512ad2331e3c3afca6cc1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:88d0b2426beb3ecd6b48cb9749825ae18963d89af674988b69bd262b8fe1b8e4 · sha256:fb6f55df35e1d51e… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/4dd262f875e87653df50b138de1390ab0628e6b7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:88d0b2426beb3ecd6b48cb9749825ae18963d89af674988b69bd262b8fe1b8e4 · sha256:fb6f55df35e1d51e… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/4fd34669558085bcb589aa2078a13b0ca79e360d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:88d0b2426beb3ecd6b48cb9749825ae18963d89af674988b69bd262b8fe1b8e4 · sha256:fb6f55df35e1d51e… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/6e4615164d185a26badb2f376a2449f4d174a5f0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:88d0b2426beb3ecd6b48cb9749825ae18963d89af674988b69bd262b8fe1b8e4 · sha256:fb6f55df35e1d51e… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/a0148342badd8c9b2e46551766a27cb76c82e715"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:88d0b2426beb3ecd6b48cb9749825ae18963d89af674988b69bd262b8fe1b8e4 · sha256:fb6f55df35e1d51e… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/dcf458120add64c96a6ef5cf719340453f6e6abf"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:88d0b2426beb3ecd6b48cb9749825ae18963d89af674988b69bd262b8fe1b8e4 · sha256:fb6f55df35e1d51e… · /containers/cna/references/5

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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