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CVE-2026-23013— net: octeon_ep_vf: fix free_irq dev_id mismatch in IRQ rollback

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.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于free_irq dev_id不匹配，可能导致释放后重用或内核崩溃。

CVSS 7.0 · High EPSS 0.15% · P5

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1< aa05a8371ae4a452df623f7202c72409d3c50e40 affected
1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1< aa4c066229b05fc3d3c5f42693d25b1828533b6e affected
1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1< f93fc5d12d69012788f82151bee55fce937e1432 affected
6.9 affected
< 6.9 unaffected
6.12.67≤ 6.12.* unaffected
6.18.7≤ 6.18.* unaffected
6.19≤ * unaffected
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I. Basic Information for CVE-2026-23013

Vulnerability Information
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Vulnerability Title
net: octeon_ep_vf: fix free_irq dev_id mismatch in IRQ rollback
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: octeon_ep_vf: fix free_irq dev_id mismatch in IRQ rollback octep_vf_request_irqs() requests MSI-X queue IRQs with dev_id set to ioq_vector. If request_irq() fails part-way, the rollback loop calls free_irq() with dev_id set to 'oct', which does not match the original dev_id and may leave the irqaction registered. This can keep IRQ handlers alive while ioq_vector is later freed during unwind/teardown, leading to a use-after-free or crash when an interrupt fires. Fix the error path to free IRQs with the same ioq_vector dev_id used during request_irq().
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/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
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于free_irq dev_id不匹配，可能导致释放后重用或内核崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1 ~ aa05a8371ae4a452df623f7202c72409d3c50e40 -
Linux Linux 6.9 -

II. Public POCs for CVE-2026-23013

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III. Intelligence Information for CVE-2026-23013

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Same Patch Batch · Linux · 2026-01-25 · 20 CVEs total

CVE-2025-71162 7.8 HIGH dmaengine: tegra-adma: Fix use-after-free
CVE-2026-23010 7.8 HIGH ipv6: Fix use-after-free in inet6_addr_del().
CVE-2026-22999 7.8 HIGH net/sched: sch_qfq: do not free existing class in qfq_change_class()
CVE-2026-23001 7.8 HIGH macvlan: fix possible UAF in macvlan_forward_source()
CVE-2026-23004 7.8 HIGH dst: fix races in rt6_uncached_list_del() and rt_del_uncached_list()
CVE-2026-23003 7.5 HIGH ip6_tunnel: use skb_vlan_inet_prepare() in __ip6_tnl_rcv()
CVE-2026-22997 7.5 HIGH net: can: j1939: j1939_xtp_rx_rts_session_active(): deactivate session upon receiving the
CVE-2026-22998 7.5 HIGH nvme-tcp: fix NULL pointer dereferences in nvmet_tcp_build_pdu_iovec
CVE-2026-23005 x86/fpu: Clear XSTATE_BV[i] in guest XSAVE state whenever XFD[i]=1
CVE-2026-23012 mm/damon/core: remove call_control in inactive contexts
CVE-2026-23002 lib/buildid: use __kernel_read() for sleepable context
CVE-2026-23006 ASoC: tlv320adcx140: fix null pointer
CVE-2026-23000 net/mlx5e: Fix crash on profile change rollback failure
CVE-2026-23007 block: zero non-PI portion of auto integrity buffer
CVE-2026-23008 drm/vmwgfx: Fix KMS with 3D on HW version 10
CVE-2026-23009 xhci: sideband: don't dereference freed ring when removing sideband endpoint
CVE-2026-22996 net/mlx5e: Don't store mlx5e_priv in mlx5e_dev devlink priv
CVE-2025-71163 dmaengine: idxd: fix device leaks on compat bind and unbind
CVE-2026-23011 ipv4: ip_gre: make ipgre_header() robust

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-23013

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