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CVE-2026-98429— RDMA/efa: Keep EQ resources alive while IRQ is registered

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Linux 内核中，已修复以下漏洞： RDMA/efa：在注册 IRQ 期间保持 EQ 资源存活 完成中断（IRQ）处理程序会访问 EQ 状态和 DMA 缓冲区。然而，在中断处理程序所使用的状态尚未初始化时，该 IRQ 已被注册；而在系统清理过程中，DMA 缓冲区的释放操作又发生在 与中断处理程序同步之前。 为此，采取以下措施进行修复： 1. 初始化 EQ 但不启用（arming）它； 2. 注册 IRQ； 3. 随后启用 EQ。 在系统清理（teardown）阶段，反向资源释放顺序：先释放 IRQ，再销毁 E

AI Predicted 6.5 Difficulty: Moderate EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1069.004

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 2a152512a155aaf27c3e67834ffafaed9525a7b5< 3cd652dfcd822af26ba75d6d2d245ea7f73b499e affected
2a152512a155aaf27c3e67834ffafaed9525a7b5< c767e2812cac83fef70fb8932c3f0fe97dff9388 affected
2a152512a155aaf27c3e67834ffafaed9525a7b5< 795eb34bfd8b1ab347adc41a11e4bb97c3ac0ce6 affected
2a152512a155aaf27c3e67834ffafaed9525a7b5< 38871ff47e2a02f8d9a333a65f358d987247b5b0 affected
2a152512a155aaf27c3e67834ffafaed9525a7b5< 9ecd3dcbdf1f315aadc049b291f59c79dc478062 affected
2a152512a155aaf27c3e67834ffafaed9525a7b5< e22a3627b7151754f07f90ea3d1ab6e85f5d93f4 affected
5.16 affected
< 5.16 unaffected
… +6 more rows
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I. Basic Information for CVE-2026-98429

Vulnerability Information
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Vulnerability Title
RDMA/efa: Keep EQ resources alive while IRQ is registered
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/efa: Keep EQ resources alive while IRQ is registered The completion IRQ handler accesses the EQ state and DMA buffer. Its IRQ was registered before that state was initialized, while teardown released the buffer before free_irq() synchronized the handler. Initialize the EQ without arming it, register the IRQ, and then arm it. Reverse the resource order during teardown by freeing the IRQ before destroying the EQ.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 2a152512a155aaf27c3e67834ffafaed9525a7b5 ~ 3cd652dfcd822af26ba75d6d2d245ea7f73b499e -
Linux Linux 5.16 -

II. Public POCs for CVE-2026-98429

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III. Intelligence Information for CVE-2026-98429

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Other References for CVE-2026-98429 (6)

Same Patch Batch · Linux · 2026-10-14 · 46 CVEs total

CVE-2026-98398 locking/lockdep: Invalidate stale class_cache entries for zapped classes
CVE-2026-98396 powerpc: Do not restore KUAP in arch_exit_to_user_mode_prepare()
CVE-2026-98393 net: ipv4: Fix UDP length overflow with PMTU discover and big MTU
CVE-2026-98391 drm/xe: Guard page-fault worker with runtime PM check
CVE-2026-98389 drm/amdgpu: skip gfx switch_power_profile during GPU reset
CVE-2026-98388 exec: do_close_on_exec() before taking exec_update_lock
CVE-2026-98387 s390/crypto: Fix skcipher_walk return code handling in aes_s390
CVE-2026-98386 scsi: qla2xxx: Use memset_io() to clear QLAFX00 request ring slot
CVE-2026-98390 x86/amd_node: Avoid divide by zero on virtualized systems
CVE-2026-98397 platform/x86: x86-android-tablets: hold device reference for secondary fwnode teardown
CVE-2026-98395 powerpc/entry: Fix irq_soft_mask corruption on replayed interrupt exit
CVE-2026-98399 s390/ipl: Fix NULL deref in dump_reipl without re-IPL parm block
CVE-2026-98400 s390/ipl: Fix NULL deref in kdump without re-IPL parm block
CVE-2026-98402 net: icmp: avoid invalid transport header access in icmp_send tracepoint
CVE-2026-98401 net: iptunnel: fix stale transport header during tunnel decapsulation
CVE-2026-98403 s390/boot: Avoid IPL parameter append past command line
CVE-2026-98404 drm/virtio: Fix a NULL vs ERR_PTR() bug in virtio_gpu_user_framebuffer_create()
CVE-2026-98405 smb: client: fix missing iov bounds check in parse_posix_sids()
CVE-2026-98406 wifi: mac80211: avoid WARN in set_bitrate_mask when sdata not in driver
CVE-2026-98408 watchdog: rzv2h: Avoid division by zero

Showing top 20 of 46 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-98429

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