CVE-2026-98353 is a vulnerability in Linux Kernel
Published on October 6, 2026
RDMA/erdma: Use IRQ-safe XArray helpers for QP and CQ tables
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.
Products Associated with CVE-2026-98353
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Affected Versions
Linux:- Version 4545f355654d044d35a31cd01cc46f491a8a7c36 and below 74d4085221a7ec5440996af199ccadfa75b9eb0e is affected.
- Version 98df2aee1459ee1c62c70cbe9b370d2a532aea36 and below 00baeade709fb66da647e8327e8398bb532e30f7 is affected.
- Version 610ef81797bb4f709e8675c1d8d093bb9ccdcbd8 is affected.
- Version c0a83f29a24c7e7f8516630848ef6db4c174deed is affected.
- Version 05b8ca493dd02319bca93c640b259c2ba51ef321 is affected.
- Version 1fc9c1933959d2776a1ce7bf424251b8b5b586cd is affected.
- Version 6e32f84b63c054e09392153125d7202abab2d14b is affected.
- Version ec987c0654651036dad6a42f7fa2a6d7c16a3687 is affected.
- Version c92686867638cda954fdb2bdbac8a75e3aa6eaae is affected.
- Version 7.2.6 and below 7.2.8 is affected.
- Version 6.1.188 and below 6.2 is affected.
- Version 6.6.157 and below 6.7 is affected.
- Version 6.12.110 and below 6.13 is affected.
- Version 6.18.52 and below 6.19 is affected.
- Version 7.3-rc1 is affected.
- Before 7.3-rc1 is unaffected.
- Version 7.2.8, <= 7.2.* is unaffected.
- Version 7.3-rc4, <= * is unaffected.