In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: fix NULL pointer dereference in brcmftxfinalize() On removal of the device or unloading of the kernel module a potential NULL pointer dereference occurs. The following sequence deletes the interface: brcmfdetach() brcmfremoveinterface() brcmfdelif() Inside the brcmfdelif() function the drvr->if2bss[ifidx] is updated to BRCMFBSSIDXINVALID (-1) if the bsscfgidx matches. After brcmfremoveinterface() call the brcmfprotodetach() function is called providing the following sequence: brcmfdetach() brcmfprotodetach() brcmfprotomsgbufdetach() brcmfflowringdetach() brcmfmsgbufdeleteflowring() brcmfmsgbufremoveflowring() brcmfflowringdelete() brcmfgetifp() brcmftxfinalize() Since brcmfgetip() can and actually will return NULL in this case the call to brcmftxfinalize() will result in a NULL pointer dereference inside brcmftxfinalize() when trying to update ifp->ndev->stats.txerrors. This will only happen if a flowring still has an skb. Although the NULL pointer dereference has only been seen when trying to update the tx statistic, all other uses of the ifp pointer have been guarded as well with an early return if ifp is NULL.
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "6.14.0-7.7", "binary_name": "linux-bpf-dev" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-buildinfo-6.14.0-7-generic" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-buildinfo-6.14.0-7-generic-64k" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-cloud-tools-6.14.0-7" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-cloud-tools-6.14.0-7-generic" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-cloud-tools-common" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-doc" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-headers-6.14.0-7" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-headers-6.14.0-7-generic" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-headers-6.14.0-7-generic-64k" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-image-6.14.0-7-generic" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-image-6.14.0-7-generic-dbgsym" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-image-unsigned-6.14.0-7-generic" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-image-unsigned-6.14.0-7-generic-64k" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-image-unsigned-6.14.0-7-generic-64k-dbgsym" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-image-unsigned-6.14.0-7-generic-dbgsym" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-lib-rust-6.14.0-7-generic" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-libc-dev" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-modules-6.14.0-7-generic" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-modules-6.14.0-7-generic-64k" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-modules-extra-6.14.0-7-generic" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-modules-usbio-6.14.0-7-generic" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-modules-vision-6.14.0-7-generic" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-source-6.14.0" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-tools-6.14.0-7" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-tools-6.14.0-7-generic" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-tools-6.14.0-7-generic-64k" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-tools-common" }, { "binary_version": "6.14.0-7.7", "binary_name": "linux-tools-host" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "6.14.0-1003.3", "binary_name": "linux-aws-cloud-tools-6.14.0-1003" }, { "binary_version": "6.14.0-1003.3", "binary_name": "linux-aws-headers-6.14.0-1003" }, { "binary_version": "6.14.0-1003.3", "binary_name": "linux-aws-tools-6.14.0-1003" }, { "binary_version": "6.14.0-1003.3", "binary_name": "linux-buildinfo-6.14.0-1003-aws" }, { "binary_version": "6.14.0-1003.3", "binary_name": "linux-cloud-tools-6.14.0-1003-aws" }, { "binary_version": "6.14.0-1003.3", "binary_name": "linux-headers-6.14.0-1003-aws" }, { "binary_version": "6.14.0-1003.3", "binary_name": "linux-image-unsigned-6.14.0-1003-aws" }, { "binary_version": "6.14.0-1003.3", "binary_name": "linux-image-unsigned-6.14.0-1003-aws-dbgsym" }, { "binary_version": "6.14.0-1003.3", "binary_name": "linux-modules-6.14.0-1003-aws" }, { "binary_version": "6.14.0-1003.3", "binary_name": "linux-modules-extra-6.14.0-1003-aws" }, { "binary_version": "6.14.0-1003.3", "binary_name": "linux-tools-6.14.0-1003-aws" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "6.14.0-1002.2", "binary_name": "linux-azure-cloud-tools-6.14.0-1002" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-azure-headers-6.14.0-1002" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-azure-tools-6.14.0-1002" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-buildinfo-6.14.0-1002-azure" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-cloud-tools-6.14.0-1002-azure" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-headers-6.14.0-1002-azure" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-image-unsigned-6.14.0-1002-azure" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-image-unsigned-6.14.0-1002-azure-dbgsym" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-modules-6.14.0-1002-azure" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-modules-extra-6.14.0-1002-azure" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-tools-6.14.0-1002-azure" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "6.14.0-1002.2", "binary_name": "linux-buildinfo-6.14.0-1002-gcp" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-buildinfo-6.14.0-1002-gcp-64k" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-gcp-headers-6.14.0-1002" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-gcp-tools-6.14.0-1002" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-headers-6.14.0-1002-gcp" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-headers-6.14.0-1002-gcp-64k" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-image-unsigned-6.14.0-1002-gcp" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-image-unsigned-6.14.0-1002-gcp-64k" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-image-unsigned-6.14.0-1002-gcp-64k-dbgsym" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-image-unsigned-6.14.0-1002-gcp-dbgsym" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-modules-6.14.0-1002-gcp" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-modules-6.14.0-1002-gcp-64k" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-modules-extra-6.14.0-1002-gcp" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-modules-extra-6.14.0-1002-gcp-64k" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-tools-6.14.0-1002-gcp" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-tools-6.14.0-1002-gcp-64k" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "6.14.0-1002.2", "binary_name": "linux-buildinfo-6.14.0-1002-oracle" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-buildinfo-6.14.0-1002-oracle-64k" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-headers-6.14.0-1002-oracle" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-headers-6.14.0-1002-oracle-64k" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-image-unsigned-6.14.0-1002-oracle" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-image-unsigned-6.14.0-1002-oracle-64k" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-image-unsigned-6.14.0-1002-oracle-64k-dbgsym" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-image-unsigned-6.14.0-1002-oracle-dbgsym" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-modules-6.14.0-1002-oracle" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-modules-6.14.0-1002-oracle-64k" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-modules-extra-6.14.0-1002-oracle" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-modules-extra-6.14.0-1002-oracle-64k" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-oracle-headers-6.14.0-1002" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-oracle-tools-6.14.0-1002" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-tools-6.14.0-1002-oracle" }, { "binary_version": "6.14.0-1002.2", "binary_name": "linux-tools-6.14.0-1002-oracle-64k" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "6.14.0-1003.3", "binary_name": "linux-buildinfo-6.14.0-1003-raspi" }, { "binary_version": "6.14.0-1003.3", "binary_name": "linux-headers-6.14.0-1003-raspi" }, { "binary_version": "6.14.0-1003.3", "binary_name": "linux-image-6.14.0-1003-raspi" }, { "binary_version": "6.14.0-1003.3", "binary_name": "linux-image-6.14.0-1003-raspi-dbgsym" }, { "binary_version": "6.14.0-1003.3", "binary_name": "linux-modules-6.14.0-1003-raspi" }, { "binary_version": "6.14.0-1003.3", "binary_name": "linux-raspi-headers-6.14.0-1003" }, { "binary_version": "6.14.0-1003.3", "binary_name": "linux-raspi-tools-6.14.0-1003" }, { "binary_version": "6.14.0-1003.3", "binary_name": "linux-tools-6.14.0-1003-raspi" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "6.14.0-1001.1", "binary_name": "linux-buildinfo-6.14.0-1001-realtime" }, { "binary_version": "6.14.0-1001.1", "binary_name": "linux-cloud-tools-6.14.0-1001-realtime" }, { "binary_version": "6.14.0-1001.1", "binary_name": "linux-headers-6.14.0-1001-realtime" }, { "binary_version": "6.14.0-1001.1", "binary_name": "linux-image-unsigned-6.14.0-1001-realtime" }, { "binary_version": "6.14.0-1001.1", "binary_name": "linux-image-unsigned-6.14.0-1001-realtime-dbgsym" }, { "binary_version": "6.14.0-1001.1", "binary_name": "linux-modules-6.14.0-1001-realtime" }, { "binary_version": "6.14.0-1001.1", "binary_name": "linux-modules-extra-6.14.0-1001-realtime" }, { "binary_version": "6.14.0-1001.1", "binary_name": "linux-modules-iwlwifi-6.14.0-1001-realtime" }, { "binary_version": "6.14.0-1001.1", "binary_name": "linux-realtime-cloud-tools-6.14.0-1001" }, { "binary_version": "6.14.0-1001.1", "binary_name": "linux-realtime-headers-6.14.0-1001" }, { "binary_version": "6.14.0-1001.1", "binary_name": "linux-realtime-tools-6.14.0-1001" }, { "binary_version": "6.14.0-1001.1", "binary_name": "linux-tools-6.14.0-1001-realtime" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "6.14.0-7.7.1", "binary_name": "linux-buildinfo-6.14.0-7-generic" }, { "binary_version": "6.14.0-7.7.1", "binary_name": "linux-headers-6.14.0-7-generic" }, { "binary_version": "6.14.0-7.7.1", "binary_name": "linux-image-6.14.0-7-generic" }, { "binary_version": "6.14.0-7.7.1", "binary_name": "linux-image-6.14.0-7-generic-dbgsym" }, { "binary_version": "6.14.0-7.7.1", "binary_name": "linux-modules-6.14.0-7-generic" }, { "binary_version": "6.14.0-7.7.1", "binary_name": "linux-riscv-headers-6.14.0-7" }, { "binary_version": "6.14.0-7.7.1", "binary_name": "linux-riscv-tools-6.14.0-7" }, { "binary_version": "6.14.0-7.7.1", "binary_name": "linux-tools-6.14.0-7-generic" } ] }