{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23046","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-01-13T15:37:45.944Z","datePublished":"2026-02-04T16:00:28.772Z","dateUpdated":"2026-05-11T21:58:57.316Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:58:57.316Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nvirtio_net: fix device mismatch in devm_kzalloc/devm_kfree\n\nInitial rss_hdr allocation uses virtio_device->device,\nbut virtnet_set_queues() frees using net_device->device.\nThis device mismatch causing below devres warning\n\n[ 3788.514041] ------------[ cut here ]------------\n[ 3788.514044] WARNING: drivers/base/devres.c:1095 at devm_kfree+0x84/0x98, CPU#16: vdpa/1463\n[ 3788.514054] Modules linked in: octep_vdpa virtio_net virtio_vdpa [last unloaded: virtio_vdpa]\n[ 3788.514064] CPU: 16 UID: 0 PID: 1463 Comm: vdpa Tainted: G        W           6.18.0 #10 PREEMPT\n[ 3788.514067] Tainted: [W]=WARN\n[ 3788.514069] Hardware name: Marvell CN106XX board (DT)\n[ 3788.514071] pstate: 63400009 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)\n[ 3788.514074] pc : devm_kfree+0x84/0x98\n[ 3788.514076] lr : devm_kfree+0x54/0x98\n[ 3788.514079] sp : ffff800084e2f220\n[ 3788.514080] x29: ffff800084e2f220 x28: ffff0003b2366000 x27: 000000000000003f\n[ 3788.514085] x26: 000000000000003f x25: ffff000106f17c10 x24: 0000000000000080\n[ 3788.514089] x23: ffff00045bb8ab08 x22: ffff00045bb8a000 x21: 0000000000000018\n[ 3788.514093] x20: ffff0004355c3080 x19: ffff00045bb8aa00 x18: 0000000000080000\n[ 3788.514098] x17: 0000000000000040 x16: 000000000000001f x15: 000000000007ffff\n[ 3788.514102] x14: 0000000000000488 x13: 0000000000000005 x12: 00000000000fffff\n[ 3788.514106] x11: ffffffffffffffff x10: 0000000000000005 x9 : ffff800080c8c05c\n[ 3788.514110] x8 : ffff800084e2eeb8 x7 : 0000000000000000 x6 : 000000000000003f\n[ 3788.514115] x5 : ffff8000831bafe0 x4 : ffff800080c8b010 x3 : ffff0004355c3080\n[ 3788.514119] x2 : ffff0004355c3080 x1 : 0000000000000000 x0 : 0000000000000000\n[ 3788.514123] Call trace:\n[ 3788.514125]  devm_kfree+0x84/0x98 (P)\n[ 3788.514129]  virtnet_set_queues+0x134/0x2e8 [virtio_net]\n[ 3788.514135]  virtnet_probe+0x9c0/0xe00 [virtio_net]\n[ 3788.514139]  virtio_dev_probe+0x1e0/0x338\n[ 3788.514144]  really_probe+0xc8/0x3a0\n[ 3788.514149]  __driver_probe_device+0x84/0x170\n[ 3788.514152]  driver_probe_device+0x44/0x120\n[ 3788.514155]  __device_attach_driver+0xc4/0x168\n[ 3788.514158]  bus_for_each_drv+0x8c/0xf0\n[ 3788.514161]  __device_attach+0xa4/0x1c0\n[ 3788.514164]  device_initial_probe+0x1c/0x30\n[ 3788.514168]  bus_probe_device+0xb4/0xc0\n[ 3788.514170]  device_add+0x614/0x828\n[ 3788.514173]  register_virtio_device+0x214/0x258\n[ 3788.514175]  virtio_vdpa_probe+0xa0/0x110 [virtio_vdpa]\n[ 3788.514179]  vdpa_dev_probe+0xa8/0xd8\n[ 3788.514183]  really_probe+0xc8/0x3a0\n[ 3788.514186]  __driver_probe_device+0x84/0x170\n[ 3788.514189]  driver_probe_device+0x44/0x120\n[ 3788.514192]  __device_attach_driver+0xc4/0x168\n[ 3788.514195]  bus_for_each_drv+0x8c/0xf0\n[ 3788.514197]  __device_attach+0xa4/0x1c0\n[ 3788.514200]  device_initial_probe+0x1c/0x30\n[ 3788.514203]  bus_probe_device+0xb4/0xc0\n[ 3788.514206]  device_add+0x614/0x828\n[ 3788.514209]  _vdpa_register_device+0x58/0x88\n[ 3788.514211]  octep_vdpa_dev_add+0x104/0x228 [octep_vdpa]\n[ 3788.514215]  vdpa_nl_cmd_dev_add_set_doit+0x2d0/0x3c0\n[ 3788.514218]  genl_family_rcv_msg_doit+0xe4/0x158\n[ 3788.514222]  genl_rcv_msg+0x218/0x298\n[ 3788.514225]  netlink_rcv_skb+0x64/0x138\n[ 3788.514229]  genl_rcv+0x40/0x60\n[ 3788.514233]  netlink_unicast+0x32c/0x3b0\n[ 3788.514237]  netlink_sendmsg+0x170/0x3b8\n[ 3788.514241]  __sys_sendto+0x12c/0x1c0\n[ 3788.514246]  __arm64_sys_sendto+0x30/0x48\n[ 3788.514249]  invoke_syscall.constprop.0+0x58/0xf8\n[ 3788.514255]  do_el0_svc+0x48/0xd0\n[ 3788.514259]  el0_svc+0x48/0x210\n[ 3788.514264]  el0t_64_sync_handler+0xa0/0xe8\n[ 3788.514268]  el0t_64_sync+0x198/0x1a0\n[ 3788.514271] ---[ end trace 0000000000000000 ]---\n\nFix by using virtio_device->device consistently for\nallocation and deallocation"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/virtio_net.c"],"versions":[{"version":"4944be2f5ad8c74b93e4e272f3a0f1a136bbc438","lessThan":"a5e2d902f64c76169c771f584559c82b588090e3","status":"affected","versionType":"git"},{"version":"4944be2f5ad8c74b93e4e272f3a0f1a136bbc438","lessThan":"acb4bc6e1ba34ae1a34a9334a1ce8474c909466e","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/virtio_net.c"],"versions":[{"version":"6.15","status":"affected"},{"version":"0","lessThan":"6.15","status":"unaffected","versionType":"semver"},{"version":"6.18.6","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"6.18.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"6.19"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/a5e2d902f64c76169c771f584559c82b588090e3"},{"url":"https://git.kernel.org/stable/c/acb4bc6e1ba34ae1a34a9334a1ce8474c909466e"}],"title":"virtio_net: fix device mismatch in devm_kzalloc/devm_kfree","x_generator":{"engine":"bippy-1.2.0"}}}}