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CVE-2026-22997— net: can: j1939: j1939_xtp_rx_rts_session_active(): deactivate session upon receiving the second rts

CVSS 7.5 · High EPSS 0.02% · P4
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I. Basic Information for CVE-2026-22997

Vulnerability Information
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Vulnerability Title
net: can: j1939: j1939_xtp_rx_rts_session_active(): deactivate session upon receiving the second rts
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: can: j1939: j1939_xtp_rx_rts_session_active(): deactivate session upon receiving the second rts Since j1939_session_deactivate_activate_next() in j1939_tp_rxtimer() is called only when the timer is enabled, we need to call j1939_session_deactivate_activate_next() if we cancelled the timer. Otherwise, refcount for j1939_session leaks, which will later appear as | unregister_netdevice: waiting for vcan0 to become free. Usage count = 2. problem.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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，该漏洞源于会话引用计数泄漏，可能导致网络设备无法释放。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 9d71dd0c70099914fcd063135da3c580865e924c ~ a73e7d7e346dae1c22dc3e95b02ca464b12daf2c -
LinuxLinux 5.4 -

II. Public POCs for CVE-2026-22997

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III. Intelligence Information for CVE-2026-22997

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

CVE-2026-230107.8 HIGHipv6: Fix use-after-free in inet6_addr_del().
CVE-2026-229997.8 HIGHnet/sched: sch_qfq: do not free existing class in qfq_change_class()
CVE-2026-230017.8 HIGHmacvlan: fix possible UAF in macvlan_forward_source()
CVE-2026-230047.8 HIGHdst: fix races in rt6_uncached_list_del() and rt_del_uncached_list()
CVE-2026-229987.5 HIGHnvme-tcp: fix NULL pointer dereferences in nvmet_tcp_build_pdu_iovec
CVE-2026-230037.5 HIGHip6_tunnel: use skb_vlan_inet_prepare() in __ip6_tnl_rcv()
CVE-2026-230137.0 HIGHnet: octeon_ep_vf: fix free_irq dev_id mismatch in IRQ rollback
CVE-2025-71162dmaengine: tegra-adma: Fix use-after-free
CVE-2025-71163dmaengine: idxd: fix device leaks on compat bind and unbind
CVE-2026-22996net/mlx5e: Don't store mlx5e_priv in mlx5e_dev devlink priv
CVE-2026-23000net/mlx5e: Fix crash on profile change rollback failure
CVE-2026-23002lib/buildid: use __kernel_read() for sleepable context
CVE-2026-23005x86/fpu: Clear XSTATE_BV[i] in guest XSAVE state whenever XFD[i]=1
CVE-2026-23006ASoC: tlv320adcx140: fix null pointer
CVE-2026-23007block: zero non-PI portion of auto integrity buffer
CVE-2026-23008drm/vmwgfx: Fix KMS with 3D on HW version 10
CVE-2026-23009xhci: sideband: don't dereference freed ring when removing sideband endpoint
CVE-2026-23011ipv4: ip_gre: make ipgre_header() robust
CVE-2026-23012mm/damon/core: remove call_control in inactive contexts

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-22997

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