CVE-2026-22997— net: can: j1939: j1939_xtp_rx_rts_session_active(): deactivate session upon receiving the second rts
Possible ATT&CK Techniques 1AI
T1195 · Supply Chain CompromiseAffected Version Matrix 16
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 9d71dd0c70099914fcd063135da3c580865e924c< a73e7d7e346dae1c22dc3e95b02ca464b12daf2c | affected |
9d71dd0c70099914fcd063135da3c580865e924c< adabf01c19561e42899da9de56a6a1da0e6b8a5b | affected | ||
9d71dd0c70099914fcd063135da3c580865e924c< b1d67607e97d489c0cfbbf55f48a76b00710b0e4 | affected | ||
9d71dd0c70099914fcd063135da3c580865e924c< 809a437e27a3bf3c1c6c8c157773635552116f2b | affected | ||
9d71dd0c70099914fcd063135da3c580865e924c< cb2a610867bc379988bae0bb4b8bbc59c0decf1a | affected | ||
9d71dd0c70099914fcd063135da3c580865e924c< 6121b7564c725b632ffe4764abe85aa239d37703 | affected | ||
9d71dd0c70099914fcd063135da3c580865e924c< 1809c82aa073a11b7d335ae932d81ce51a588a4a | affected | ||
5.4 | affected | ||
| … +8 more rows | |||
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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: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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
II. Public POCs for CVE-2026-22997
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Linux · 2026-01-25 · 20 CVEs total
| CVE-2026-23004 | 7.8 HIGH | dst: fix races in rt6_uncached_list_del() and rt_del_uncached_list() |
| CVE-2025-71162 | 7.8 HIGH | dmaengine: tegra-adma: Fix use-after-free |
| 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-2026-23010 | 7.8 HIGH | ipv6: Fix use-after-free in inet6_addr_del(). |
| CVE-2026-23003 | 7.5 HIGH | ip6_tunnel: use skb_vlan_inet_prepare() in __ip6_tnl_rcv() |
| CVE-2026-22998 | 7.5 HIGH | nvme-tcp: fix NULL pointer dereferences in nvmet_tcp_build_pdu_iovec |
| CVE-2026-23013 | 7.0 HIGH | net: octeon_ep_vf: fix free_irq dev_id mismatch in IRQ rollback |
| CVE-2026-23009 | xhci: sideband: don't dereference freed ring when removing sideband endpoint | |
| CVE-2026-23008 | drm/vmwgfx: Fix KMS with 3D on HW version 10 | |
| CVE-2026-23007 | block: zero non-PI portion of auto integrity buffer | |
| CVE-2026-23006 | ASoC: tlv320adcx140: fix null pointer | |
| CVE-2026-23005 | x86/fpu: Clear XSTATE_BV[i] in guest XSAVE state whenever XFD[i]=1 | |
| CVE-2026-23002 | lib/buildid: use __kernel_read() for sleepable context | |
| CVE-2026-23000 | net/mlx5e: Fix crash on profile change rollback failure | |
| CVE-2026-23011 | ipv4: ip_gre: make ipgre_header() robust | |
| 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-2026-23012 | mm/damon/core: remove call_control in inactive contexts |
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off - CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev
Same vendor: Linux
- CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off - CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev
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