CVE-2024-43832 – s390/uv: Don't call folio_wait_writeback() without a folio reference
https://notcve.org/view.php?id=CVE-2024-43832
17 Aug 2024 — In the Linux kernel, the following vulnerability has been resolved: s390/uv: Don't call folio_wait_writeback() without a folio reference folio_wait_writeback() requires that no spinlocks are held and that a folio reference is held, as documented. After we dropped the PTL, the folio could get freed concurrently. So grab a temporary reference. Ubuntu Security Notice 7156-1 - Chenyuan Yang discovered that the USB Gadget subsystem in the Linux kernel did not properly check for the device to be enabled before ... • https://git.kernel.org/stable/c/214d9bbcd3a67230b932f6cea83c078ab34d9e70 •
CVE-2024-43831 – media: mediatek: vcodec: Handle invalid decoder vsi
https://notcve.org/view.php?id=CVE-2024-43831
17 Aug 2024 — In the Linux kernel, the following vulnerability has been resolved: media: mediatek: vcodec: Handle invalid decoder vsi Handle an invalid decoder vsi in vpu_dec_init to ensure the decoder vsi is valid for future use. Ubuntu Security Notice 7155-1 - Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. • https://git.kernel.org/stable/c/590577a4e5257ac3ed72999a94666ad6ba8f24bc •
CVE-2024-43830 – leds: trigger: Unregister sysfs attributes before calling deactivate()
https://notcve.org/view.php?id=CVE-2024-43830
17 Aug 2024 — In the Linux kernel, the following vulnerability has been resolved: leds: trigger: Unregister sysfs attributes before calling deactivate() Triggers which have trigger specific sysfs attributes typically store related data in trigger-data allocated by the activate() callback and freed by the deactivate() callback. Calling device_remove_groups() after calling deactivate() leaves a window where the sysfs attributes show/store functions could be called after deactivation and then operate on the just freed tr... • https://git.kernel.org/stable/c/a7e7a3156300a7e1982b03cc9cb8fb0c86434c49 • CWE-416: Use After Free •
CVE-2024-43829 – drm/qxl: Add check for drm_cvt_mode
https://notcve.org/view.php?id=CVE-2024-43829
17 Aug 2024 — In the Linux kernel, the following vulnerability has been resolved: drm/qxl: Add check for drm_cvt_mode Add check for the return value of drm_cvt_mode() and return the error if it fails in order to avoid NULL pointer dereference. Ubuntu Security Notice 7144-1 - Supraja Sridhara, Benedict Schlüter, Mark Kuhne, Andrin Bertschi, and Shweta Shinde discovered that the Confidential Computing framework in the Linux kernel for x86 platforms did not properly handle 32-bit emulation on TDX and SEV. An attacker with... • https://git.kernel.org/stable/c/1b043677d4be206c96b51811855502e50057f343 •
CVE-2024-43828 – ext4: fix infinite loop when replaying fast_commit
https://notcve.org/view.php?id=CVE-2024-43828
17 Aug 2024 — In the Linux kernel, the following vulnerability has been resolved: ext4: fix infinite loop when replaying fast_commit When doing fast_commit replay an infinite loop may occur due to an uninitialized extent_status struct. ext4_ext_determine_insert_hole() does not detect the replay and calls ext4_es_find_extent_range(), which will return immediately without initializing the 'es' variable. Because 'es' contains garbage, an integer overflow may happen causing an infinite loop in this function, easily repro... • https://git.kernel.org/stable/c/8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 •
CVE-2024-43824 – PCI: endpoint: pci-epf-test: Make use of cached 'epc_features' in pci_epf_test_core_init()
https://notcve.org/view.php?id=CVE-2024-43824
17 Aug 2024 — In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: pci-epf-test: Make use of cached 'epc_features' in pci_epf_test_core_init() Instead of getting the epc_features from pci_epc_get_features() API, use the cached pci_epf_test::epc_features value to avoid the NULL check. Since the NULL check is already performed in pci_epf_test_bind(), having one more check in pci_epf_test_core_init() is redundant and it is not possible to hit the NULL pointer dereference. Also with commit a0... • https://git.kernel.org/stable/c/5e50ee27d4a52a817ab152128c48690ec7c5cdf1 •
CVE-2024-43823 – PCI: keystone: Fix NULL pointer dereference in case of DT error in ks_pcie_setup_rc_app_regs()
https://notcve.org/view.php?id=CVE-2024-43823
17 Aug 2024 — In the Linux kernel, the following vulnerability has been resolved: PCI: keystone: Fix NULL pointer dereference in case of DT error in ks_pcie_setup_rc_app_regs() If IORESOURCE_MEM is not provided in Device Tree due to any error, resource_list_first_type() will return NULL and pci_parse_request_of_pci_ranges() will just emit a warning. This will cause a NULL pointer dereference. Fix this bug by adding NULL return check. Found by Linux Verification Center (linuxtesting.org) with SVACE. Ubuntu Security No... • https://git.kernel.org/stable/c/0f71c60ffd26943fa9646aa73ad7889ace116ce2 •
CVE-2024-43819 – kvm: s390: Reject memory region operations for ucontrol VMs
https://notcve.org/view.php?id=CVE-2024-43819
17 Aug 2024 — In the Linux kernel, the following vulnerability has been resolved: kvm: s390: Reject memory region operations for ucontrol VMs This change rejects the KVM_SET_USER_MEMORY_REGION and KVM_SET_USER_MEMORY_REGION2 ioctls when called on a ucontrol VM. This is necessary since ucontrol VMs have kvm->arch.gmap set to 0 and would thus result in a null pointer dereference further in. Memory management needs to be performed in userspace and using the ioctls KVM_S390_UCAS_MAP and KVM_S390_UCAS_UNMAP. Also improve s... • https://git.kernel.org/stable/c/27e0393f15fc8bc855c6a888387ff5ffd2181089 •
CVE-2024-43818 – ASoC: amd: Adjust error handling in case of absent codec device
https://notcve.org/view.php?id=CVE-2024-43818
17 Aug 2024 — In the Linux kernel, the following vulnerability has been resolved: ASoC: amd: Adjust error handling in case of absent codec device acpi_get_first_physical_node() can return NULL in several cases (no such device, ACPI table error, reference count drop to 0, etc). Existing check just emit error message, but doesn't perform return. Then this NULL pointer is passed to devm_acpi_dev_add_driver_gpios() where it is dereferenced. Adjust this error handling by adding error code return. Found by Linux Verificati... • https://git.kernel.org/stable/c/02527c3f2300100a25524c8c020d98c7957e485e •
CVE-2024-43817 – net: missing check virtio
https://notcve.org/view.php?id=CVE-2024-43817
17 Aug 2024 — In the Linux kernel, the following vulnerability has been resolved: net: missing check virtio Two missing check in virtio_net_hdr_to_skb() allowed syzbot to crash kernels again 1. After the skb_segment function the buffer may become non-linear (nr_frags != 0), but since the SKBTX_SHARED_FRAG flag is not set anywhere the __skb_linearize function will not be executed, then the buffer will remain non-linear. Then the condition (offset >= skb_headlen(skb)) becomes true, which causes WARN_ON_ONCE in skb_check... • https://git.kernel.org/stable/c/0f6925b3e8da0dbbb52447ca8a8b42b371aac7db • CWE-130: Improper Handling of Length Parameter Inconsistency •