Vulnerability-Lookup

FKIE_CVE-2026-23175

Vulnerability from fkie_nvd - Published: 2026-02-14 17:15 - Updated: 2026-02-18 17:52

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: net: cpsw: Execute ndo_set_rx_mode callback in a work queue Commit 1767bb2d47b7 ("ipv6: mcast: Don't hold RTNL for IPV6_ADD_MEMBERSHIP and MCAST_JOIN_GROUP.") removed the RTNL lock for IPV6_ADD_MEMBERSHIP and MCAST_JOIN_GROUP operations. However, this change triggered the following call trace on my BeagleBone Black board: WARNING: net/8021q/vlan_core.c:236 at vlan_for_each+0x120/0x124, CPU#0: rpcbind/481 RTNL: assertion failed at net/8021q/vlan_core.c (236) Modules linked in: CPU: 0 UID: 997 PID: 481 Comm: rpcbind Not tainted 6.19.0-rc7-next-20260130-yocto-standard+ #35 PREEMPT Hardware name: Generic AM33XX (Flattened Device Tree) Call trace: unwind_backtrace from show_stack+0x28/0x2c show_stack from dump_stack_lvl+0x30/0x38 dump_stack_lvl from __warn+0xb8/0x11c __warn from warn_slowpath_fmt+0x130/0x194 warn_slowpath_fmt from vlan_for_each+0x120/0x124 vlan_for_each from cpsw_add_mc_addr+0x54/0x98 cpsw_add_mc_addr from __hw_addr_ref_sync_dev+0xc4/0xec __hw_addr_ref_sync_dev from __dev_mc_add+0x78/0x88 __dev_mc_add from igmp6_group_added+0x84/0xec igmp6_group_added from __ipv6_dev_mc_inc+0x1fc/0x2f0 __ipv6_dev_mc_inc from __ipv6_sock_mc_join+0x124/0x1b4 __ipv6_sock_mc_join from do_ipv6_setsockopt+0x84c/0x1168 do_ipv6_setsockopt from ipv6_setsockopt+0x88/0xc8 ipv6_setsockopt from do_sock_setsockopt+0xe8/0x19c do_sock_setsockopt from __sys_setsockopt+0x84/0xac __sys_setsockopt from ret_fast_syscall+0x0/0x54 This trace occurs because vlan_for_each() is called within cpsw_ndo_set_rx_mode(), which expects the RTNL lock to be held. Since modifying vlan_for_each() to operate without the RTNL lock is not straightforward, and because ndo_set_rx_mode() is invoked both with and without the RTNL lock across different code paths, simply adding rtnl_lock() in cpsw_ndo_set_rx_mode() is not a viable solution. To resolve this issue, we opt to execute the actual processing within a work queue, following the approach used by the icssg-prueth driver. Please note: To reproduce this issue, I manually reverted the changes to am335x-bone-common.dtsi from commit c477358e66a3 ("ARM: dts: am335x-bone: switch to new cpsw switch drv") in order to revert to the legacy cpsw driver.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/0b8c878d117319f2be34c8391a77e0f4d5c94d79
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/488009aa62bb1217ea0624fd5108b79adef4e148

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: cpsw: Execute ndo_set_rx_mode callback in a work queue\n\nCommit 1767bb2d47b7 (\"ipv6: mcast: Don\u0027t hold RTNL for\nIPV6_ADD_MEMBERSHIP and MCAST_JOIN_GROUP.\") removed the RTNL lock for\nIPV6_ADD_MEMBERSHIP and MCAST_JOIN_GROUP operations. However, this\nchange triggered the following call trace on my BeagleBone Black board:\n  WARNING: net/8021q/vlan_core.c:236 at vlan_for_each+0x120/0x124, CPU#0: rpcbind/481\n  RTNL: assertion failed at net/8021q/vlan_core.c (236)\n  Modules linked in:\n  CPU: 0 UID: 997 PID: 481 Comm: rpcbind Not tainted 6.19.0-rc7-next-20260130-yocto-standard+ #35 PREEMPT\n  Hardware name: Generic AM33XX (Flattened Device Tree)\n  Call trace:\n   unwind_backtrace from show_stack+0x28/0x2c\n   show_stack from dump_stack_lvl+0x30/0x38\n   dump_stack_lvl from __warn+0xb8/0x11c\n   __warn from warn_slowpath_fmt+0x130/0x194\n   warn_slowpath_fmt from vlan_for_each+0x120/0x124\n   vlan_for_each from cpsw_add_mc_addr+0x54/0x98\n   cpsw_add_mc_addr from __hw_addr_ref_sync_dev+0xc4/0xec\n   __hw_addr_ref_sync_dev from __dev_mc_add+0x78/0x88\n   __dev_mc_add from igmp6_group_added+0x84/0xec\n   igmp6_group_added from __ipv6_dev_mc_inc+0x1fc/0x2f0\n   __ipv6_dev_mc_inc from __ipv6_sock_mc_join+0x124/0x1b4\n   __ipv6_sock_mc_join from do_ipv6_setsockopt+0x84c/0x1168\n   do_ipv6_setsockopt from ipv6_setsockopt+0x88/0xc8\n   ipv6_setsockopt from do_sock_setsockopt+0xe8/0x19c\n   do_sock_setsockopt from __sys_setsockopt+0x84/0xac\n   __sys_setsockopt from ret_fast_syscall+0x0/0x54\n\nThis trace occurs because vlan_for_each() is called within\ncpsw_ndo_set_rx_mode(), which expects the RTNL lock to be held.\nSince modifying vlan_for_each() to operate without the RTNL lock is not\nstraightforward, and because ndo_set_rx_mode() is invoked both with and\nwithout the RTNL lock across different code paths, simply adding\nrtnl_lock() in cpsw_ndo_set_rx_mode() is not a viable solution.\n\nTo resolve this issue, we opt to execute the actual processing within\na work queue, following the approach used by the icssg-prueth driver.\n\nPlease note: To reproduce this issue, I manually reverted the changes to\nam335x-bone-common.dtsi from commit c477358e66a3 (\"ARM: dts: am335x-bone:\nswitch to new cpsw switch drv\") in order to revert to the legacy cpsw\ndriver."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnet: cpsw: Ejecutar la devoluci\u00f3n de llamada ndo_set_rx_mode en una cola de trabajo\n\nEl commit 1767bb2d47b7 (\u0027ipv6: mcast: No retener RTNL para IPV6_ADD_MEMBERSHIP y MCAST_JOIN_GROUP.\u0027) elimin\u00f3 el bloqueo RTNL para las operaciones IPV6_ADD_MEMBERSHIP y MCAST_JOIN_GROUP. Sin embargo, este cambio desencaden\u00f3 el siguiente rastreo de llamadas en mi placa BeagleBone Black:\n  WARNING: net/8021q/vlan_core.c:236 en vlan_for_each+0x120/0x124, CPU#0: rpcbind/481\n  RTNL: aserci\u00f3n fallida en net/8021q/vlan_core.c (236)\n  M\u00f3dulos enlazados:\n  CPU: 0 UID: 997 PID: 481 Comm: rpcbind No contaminado 6.19.0-rc7-next-20260130-yocto-standard+ #35 PREEMPT\n  Nombre del hardware: Generic AM33XX (Flattened Device Tree)\n  Rastreo de llamadas:\n   unwind_backtrace desde show_stack+0x28/0x2c\n   show_stack desde dump_stack_lvl+0x30/0x38\n   dump_stack_lvl desde __warn+0xb8/0x11c\n   __warn desde warn_slowpath_fmt+0x130/0x194\n   warn_slowpath_fmt desde vlan_for_each+0x120/0x124\n   vlan_for_each desde cpsw_add_mc_addr+0x54/0x98\n   cpsw_add_mc_addr desde __hw_addr_ref_sync_dev+0xc4/0xec\n   __hw_addr_ref_sync_dev desde __dev_mc_add+0x78/0x88\n   __dev_mc_add desde igmp6_group_added+0x84/0xec\n   igmp6_group_added desde __ipv6_dev_mc_inc+0x1fc/0x2f0\n   __ipv6_dev_mc_inc desde __ipv6_sock_mc_join+0x124/0x1b4\n   __ipv6_sock_mc_join desde do_ipv6_setsockopt+0x84c/0x1168\n   do_ipv6_setsockopt desde ipv6_setsockopt+0x88/0xc8\n   ipv6_setsockopt desde do_sock_setsockopt+0xe8/0x19c\n   do_sock_setsockopt desde __sys_setsockopt+0x84/0xac\n   __sys_setsockopt desde ret_fast_syscall+0x0/0x54\n\nEste rastreo ocurre porque se llama a vlan_for_each() dentro de cpsw_ndo_set_rx_mode(), que espera que el bloqueo RTNL est\u00e9 retenido. Dado que modificar vlan_for_each() para operar sin el bloqueo RTNL no es sencillo, y debido a que ndo_set_rx_mode() se invoca tanto con como sin el bloqueo RTNL a trav\u00e9s de diferentes rutas de c\u00f3digo, simplemente a\u00f1adir rtnl_lock() en cpsw_ndo_set_rx_mode() no es una soluci\u00f3n viable.\n\nPara resolver este problema, optamos por ejecutar el procesamiento real dentro de una cola de trabajo, siguiendo el enfoque utilizado por el controlador icssg-prueth.\n\nTenga en cuenta: Para reproducir este problema, revert\u00ed manualmente los cambios en am335x-bone-common.dtsi del commit c477358e66a3 (\u0027ARM: dts: am335x-bone: cambiar a nuevo controlador de switch cpsw\u0027) para revertir al controlador cpsw heredado."
    }
  ],
  "id": "CVE-2026-23175",
  "lastModified": "2026-02-18T17:52:22.253",
  "metrics": {},
  "published": "2026-02-14T17:15:55.210",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0b8c878d117319f2be34c8391a77e0f4d5c94d79"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/488009aa62bb1217ea0624fd5108b79adef4e148"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2026-23175 (GCVE-0-2026-23175)

Vulnerability from cvelistv5 – Published: 2026-02-14 16:27 – Updated: 2026-02-14 16:27

Title

net: cpsw: Execute ndo_set_rx_mode callback in a work queue

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/488009aa62bb1217e…
	https://git.kernel.org/stable/c/0b8c878d117319f2b…

Impacted products

Vendor

Product

Version

Linux

Affected: 1767bb2d47b715a106287a8f963d9ec6cbab4e69 , < 488009aa62bb1217ea0624fd5108b79adef4e148 (git)
Affected: 1767bb2d47b715a106287a8f963d9ec6cbab4e69 , < 0b8c878d117319f2be34c8391a77e0f4d5c94d79 (git)

Linux

Affected: 6.17
Unaffected: 0 , < 6.17 (semver)
Unaffected: 6.18.10 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/ti/cpsw.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "488009aa62bb1217ea0624fd5108b79adef4e148",
              "status": "affected",
              "version": "1767bb2d47b715a106287a8f963d9ec6cbab4e69",
              "versionType": "git"
            },
            {
              "lessThan": "0b8c878d117319f2be34c8391a77e0f4d5c94d79",
              "status": "affected",
              "version": "1767bb2d47b715a106287a8f963d9ec6cbab4e69",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/ti/cpsw.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.17"
            },
            {
              "lessThan": "6.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.10",
                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19",
                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: cpsw: Execute ndo_set_rx_mode callback in a work queue\n\nCommit 1767bb2d47b7 (\"ipv6: mcast: Don\u0027t hold RTNL for\nIPV6_ADD_MEMBERSHIP and MCAST_JOIN_GROUP.\") removed the RTNL lock for\nIPV6_ADD_MEMBERSHIP and MCAST_JOIN_GROUP operations. However, this\nchange triggered the following call trace on my BeagleBone Black board:\n  WARNING: net/8021q/vlan_core.c:236 at vlan_for_each+0x120/0x124, CPU#0: rpcbind/481\n  RTNL: assertion failed at net/8021q/vlan_core.c (236)\n  Modules linked in:\n  CPU: 0 UID: 997 PID: 481 Comm: rpcbind Not tainted 6.19.0-rc7-next-20260130-yocto-standard+ #35 PREEMPT\n  Hardware name: Generic AM33XX (Flattened Device Tree)\n  Call trace:\n   unwind_backtrace from show_stack+0x28/0x2c\n   show_stack from dump_stack_lvl+0x30/0x38\n   dump_stack_lvl from __warn+0xb8/0x11c\n   __warn from warn_slowpath_fmt+0x130/0x194\n   warn_slowpath_fmt from vlan_for_each+0x120/0x124\n   vlan_for_each from cpsw_add_mc_addr+0x54/0x98\n   cpsw_add_mc_addr from __hw_addr_ref_sync_dev+0xc4/0xec\n   __hw_addr_ref_sync_dev from __dev_mc_add+0x78/0x88\n   __dev_mc_add from igmp6_group_added+0x84/0xec\n   igmp6_group_added from __ipv6_dev_mc_inc+0x1fc/0x2f0\n   __ipv6_dev_mc_inc from __ipv6_sock_mc_join+0x124/0x1b4\n   __ipv6_sock_mc_join from do_ipv6_setsockopt+0x84c/0x1168\n   do_ipv6_setsockopt from ipv6_setsockopt+0x88/0xc8\n   ipv6_setsockopt from do_sock_setsockopt+0xe8/0x19c\n   do_sock_setsockopt from __sys_setsockopt+0x84/0xac\n   __sys_setsockopt from ret_fast_syscall+0x0/0x54\n\nThis trace occurs because vlan_for_each() is called within\ncpsw_ndo_set_rx_mode(), which expects the RTNL lock to be held.\nSince modifying vlan_for_each() to operate without the RTNL lock is not\nstraightforward, and because ndo_set_rx_mode() is invoked both with and\nwithout the RTNL lock across different code paths, simply adding\nrtnl_lock() in cpsw_ndo_set_rx_mode() is not a viable solution.\n\nTo resolve this issue, we opt to execute the actual processing within\na work queue, following the approach used by the icssg-prueth driver.\n\nPlease note: To reproduce this issue, I manually reverted the changes to\nam335x-bone-common.dtsi from commit c477358e66a3 (\"ARM: dts: am335x-bone:\nswitch to new cpsw switch drv\") in order to revert to the legacy cpsw\ndriver."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-14T16:27:08.104Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/488009aa62bb1217ea0624fd5108b79adef4e148"
        },
        {
          "url": "https://git.kernel.org/stable/c/0b8c878d117319f2be34c8391a77e0f4d5c94d79"
        }
      ],
      "title": "net: cpsw: Execute ndo_set_rx_mode callback in a work queue",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23175",
    "datePublished": "2026-02-14T16:27:08.104Z",
    "dateReserved": "2026-01-13T15:37:45.983Z",
    "dateUpdated": "2026-02-14T16:27:08.104Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2026-23175

CVE-2026-23175 (GCVE-0-2026-23175)

Tags

Sightings

Nomenclature