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CVE-2026-100075— RDMA/srpt: Fix srpt_alloc_rw_ctxs() unwind counters

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，以下漏洞已得到修复： RDMA/srpt：修复 srpt_alloc_rw_ctxs() 的清理计数逻辑 当 srpt_alloc_rw_ctxs() 在处理多缓冲区间接描述符的过程中中途失败时，其清理路径会销毁 RDMA 上下文，但遗留了过时的 n_rw_ctx 和 n_rdma 值（以及一个悬空的 rw_ctxs 指针）。随后，在 srpt_queue_response() 或 srpt_write_pending() 中对发送队列可用数量（sq_wr_avail）的维护可能会减去错误的

CVSS 9.8 · Critical EPSS 0.42% · P34

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux b99f8e4d7bcd3bfbb3cd965918523299370d0cb2< af00051dbc9f467d4840ec709680660a3f8990fa affected
b99f8e4d7bcd3bfbb3cd965918523299370d0cb2< 717ab4d0614e9446bf8e2de6229464499e4008d6 affected
b99f8e4d7bcd3bfbb3cd965918523299370d0cb2< f1f2252da52cdda912da9993f39f58783b01b38f affected
b99f8e4d7bcd3bfbb3cd965918523299370d0cb2< f65f45dfa1e6e2eaa9e11c8b8ce8857799cb189d affected
b99f8e4d7bcd3bfbb3cd965918523299370d0cb2< be1478849e1abb1e12dc12e14cdbf800cc6fa99a affected
b99f8e4d7bcd3bfbb3cd965918523299370d0cb2< af073bd245180393bcb15d33d3990a6bdc32593a affected
b99f8e4d7bcd3bfbb3cd965918523299370d0cb2< bd02d644bd19a2795c018635d273d91e45d2bb95 affected
b99f8e4d7bcd3bfbb3cd965918523299370d0cb2< b38f98e176050850f41bb6415f3a71400056623e affected
… +10 more rows
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I. Basic Information for CVE-2026-100075

Vulnerability Information
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Vulnerability Title
RDMA/srpt: Fix srpt_alloc_rw_ctxs() unwind counters
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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 b99f8e4d7bcd3bfbb3cd965918523299370d0cb2 ~ af00051dbc9f467d4840ec709680660a3f8990fa -
Linux Linux 4.7 -

II. Public POCs for CVE-2026-100075

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III. Intelligence Information for CVE-2026-100075

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Patches & Fixes for CVE-2026-100075 (8)

Same Patch Batch · Linux · 2026-09-25 · 372 CVEs total

CVE-2026-98115 8.8 HIGH ksmbd: safely drain sessions during logoff
CVE-2026-97555 8.8 HIGH smb: client: fix heap overflow in DACL owner/group rewrite
CVE-2026-97527 8.8 HIGH scsi: qla2xxx: Serialize NVMe unsol ctx list with a per-fcport lock
CVE-2026-97528 8.8 HIGH scsi: qla2xxx: Unlink NVMe unsol ctx before freeing on LS reject error
CVE-2026-97957 8.8 HIGH net: hinic: fix mailbox segment buffer overflow
CVE-2026-97525 8.2 HIGH x86/mm/pat: Allocate split page tables as kernel page tables
CVE-2026-98130 8.1 HIGH sctp: fix a TOCTOU race in SCTP_CMD_TIMER_START
CVE-2026-98070 8.1 HIGH net/rds: acquire RDS_IN_XMIT in rds_tcp_reset_callbacks()
CVE-2026-98069 8.1 HIGH net/rds: acquire the fastpath locks in rds_conn_shutdown()
CVE-2026-97570 8.1 HIGH bnxt_en: Bound SW TPA IDs to prevent crashes
CVE-2026-97573 8.1 HIGH bnxt_en: Handle buffer allocation failure in bnxt_rx_ring_reset()
CVE-2026-97940 7.8 HIGH ipv6: fix fib6 walker UAF on seq stop
CVE-2026-97991 7.8 HIGH vdpa_sim_blk: reject out-of-range sector starts
CVE-2026-97941 7.8 HIGH mm/slab: take n->list_lock in __slab_try_return_freelist() to avoid race
CVE-2026-98122 7.8 HIGH vxlan: mdb: Fix use-after-free in vxlan_mdb_remote_src_del()
CVE-2026-97612 7.8 HIGH net: mpls: clear inner_protocol when the last label is popped
CVE-2026-97594 7.8 HIGH landlock: Fix use-after-free of the source's parent directory
CVE-2026-97611 7.8 HIGH net: openvswitch: fix use-after-free of the flow table mask array
CVE-2026-98002 7.8 HIGH iommu/amd: Fix ineffective error check in nested domain allocation
CVE-2026-98073 7.8 HIGH net: Remove conflicting altnames for dying netns in __dev_change_net_namespace().

Showing top 20 of 372 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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