CVE-2026-98353

In the Linux kernel, the following vulnerability has been resolved: RDMA/erdma: Use IRQ-safe XArray helpers for QP and CQ tables Locked QP and CQ lookups from EQ interrupts can deadlock with create-path XArray updates. If an interrupt arrives while the create path holds the plain xa_lock, the lookup spins forever trying to acquire the same lock. Use IRQ-safe XArray helpers for all QP and CQ create-path updates, including the GSI QP store and error paths. Initialize both arrays with XA_FLAGS_LOCK_IRQ so sleeping allocations preserve interrupt state.

Package Linux Kernel
Published 2026-10-06
Last modified 2026-10-06
Patch available
Yes

Affected versions

Linux kernel versions 7.2.6, 6.1.188, 6.6.157, 6.12.110, 6.18.52, 7.3-rc1 and later are affected. Fixed in 7.2.8, 7.3-rc4 and their respective stable series.

Affected from
≥ 7.2.6 ≥ 6.1.188 ≥ 6.6.157 ≥ 6.12.110 ≥ 6.18.52 ≥ 7.3-rc1
Fixed in
✓ 7.2.8 7.2.x ✓ 7.3-rc4

References

2 total

Frequently asked questions

  • What is CVE-2026-98353?

    CVE-2026-98353 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 7.2.6 onward and has been patched in 7.2.8 and 7.3-rc4. CVE-2026-98353 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • Is there a patch available for CVE-2026-98353?

    Yes. CVE-2026-98353 has been patched. Fixed versions include 7.2.8 and 7.3-rc4. If you are running Linux kernel 7.2.6 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2026-98353 actively exploited?

    No. CVE-2026-98353 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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