CVSS: -EPSS: 0%CPEs: 9EXPL: 0CVE-2024-56531 – ALSA: caiaq: Use snd_card_free_when_closed() at disconnection
https://notcve.org/view.php?id=CVE-2024-56531
In the Linux kernel, the following vulnerability has been resolved: ALSA: caiaq: Use snd_card_free_when_closed() at disconnection The USB disconnect callback is supposed to be short and not too-long waiting. OTOH, the current code uses snd_card_free() at disconnection, but this waits for the close of all used fds, hence it can take long. It eventually blocks the upper layer USB ioctls, which may trigger a soft lockup. An easy workaround is to replace snd_card_free() with snd_card_free_when_closed(). This variant returns immediately while the release of resources is done asynchronously by the card device release at the last close. This patch also splits the code to the disconnect and the free phases; the former is called immediately at the USB disconnect callback while the latter is called from the card destructor. • https://git.kernel.org/stable/c/523f1dce37434a9a6623bf46e7893e2b4b10ac3c https://git.kernel.org/stable/c/3993edf44d3df7b6e8c753eac6ac8783473fcbab https://git.kernel.org/stable/c/ebad462eec93b0f701dfe4de98990e7355283801 https://git.kernel.org/stable/c/4dd821dcbfcecf7af6a08370b0b217cde2818acf https://git.kernel.org/stable/c/cadf1d8e9ddcd74584ec961aeac14ac549b261d8 https://git.kernel.org/stable/c/237f3faf0177bdde728fa3106d730d806436aa4d https://git.kernel.org/stable/c/4507a8b9b30344c5ddd8219945f446d47e966a6d https://git.kernel.org/stable/c/dd0de8cb708951cebf727aa045e8242ba •
CVSS: -EPSS: 0%CPEs: 5EXPL: 0CVE-2024-53210 – s390/iucv: MSG_PEEK causes memory leak in iucv_sock_destruct()
https://notcve.org/view.php?id=CVE-2024-53210
In the Linux kernel, the following vulnerability has been resolved: s390/iucv: MSG_PEEK causes memory leak in iucv_sock_destruct() Passing MSG_PEEK flag to skb_recv_datagram() increments skb refcount (skb->users) and iucv_sock_recvmsg() does not decrement skb refcount at exit. This results in skb memory leak in skb_queue_purge() and WARN_ON in iucv_sock_destruct() during socket close. To fix this decrease skb refcount by one if MSG_PEEK is set in order to prevent memory leak and WARN_ON. WARNING: CPU: 2 PID: 6292 at net/iucv/af_iucv.c:286 iucv_sock_destruct+0x144/0x1a0 [af_iucv] CPU: 2 PID: 6292 Comm: afiucv_test_msg Kdump: loaded Tainted: G W 6.10.0-rc7 #1 Hardware name: IBM 3931 A01 704 (z/VM 7.3.0) Call Trace: [<001587c682c4aa98>] iucv_sock_destruct+0x148/0x1a0 [af_iucv] [<001587c682c4a9d0>] iucv_sock_destruct+0x80/0x1a0 [af_iucv] [<001587c704117a32>] __sk_destruct+0x52/0x550 [<001587c704104a54>] __sock_release+0xa4/0x230 [<001587c704104c0c>] sock_close+0x2c/0x40 [<001587c702c5f5a8>] __fput+0x2e8/0x970 [<001587c7024148c4>] task_work_run+0x1c4/0x2c0 [<001587c7023b0716>] do_exit+0x996/0x1050 [<001587c7023b13aa>] do_group_exit+0x13a/0x360 [<001587c7023b1626>] __s390x_sys_exit_group+0x56/0x60 [<001587c7022bccca>] do_syscall+0x27a/0x380 [<001587c7049a6a0c>] __do_syscall+0x9c/0x160 [<001587c7049ce8a8>] system_call+0x70/0x98 Last Breaking-Event-Address: [<001587c682c4a9d4>] iucv_sock_destruct+0x84/0x1a0 [af_iucv] • https://git.kernel.org/stable/c/eac3731bd04c7131478722a3c148b78774553116 https://git.kernel.org/stable/c/934326aef7ac4652f81c69d18bf44eebaefc39c3 https://git.kernel.org/stable/c/42251c2d1ef1cb0822638bebb87ad9120c759673 https://git.kernel.org/stable/c/783c2c6e61c5a04eb8baea598753d5fa174dbe85 https://git.kernel.org/stable/c/9f603e66e1c59c1d25e60eb0636cb307d190782e https://git.kernel.org/stable/c/ebaf81317e42aa990ad20b113cfe3a7b20d4e937 •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-53198 – xen: Fix the issue of resource not being properly released in xenbus_dev_probe()
https://notcve.org/view.php?id=CVE-2024-53198
In the Linux kernel, the following vulnerability has been resolved: xen: Fix the issue of resource not being properly released in xenbus_dev_probe() This patch fixes an issue in the function xenbus_dev_probe(). In the xenbus_dev_probe() function, within the if (err) branch at line 313, the program incorrectly returns err directly without releasing the resources allocated by err = drv->probe(dev, id). As the return value is non-zero, the upper layers assume the processing logic has failed. However, the probe operation was performed earlier without a corresponding remove operation. Since the probe actually allocates resources, failing to perform the remove operation could lead to problems. To fix this issue, we followed the resource release logic of the xenbus_dev_remove() function by adding a new block fail_remove before the fail_put block. After entering the branch if (err) at line 313, the function will use a goto statement to jump to the fail_remove block, ensuring that the previously acquired resources are correctly released, thus preventing the reference count leak. This bug was identified by an experimental static analysis tool developed by our team. • https://git.kernel.org/stable/c/4bac07c993d03434ea902d3d4290d9e45944b66c https://git.kernel.org/stable/c/87106169b4ce26f85561f953d13d1fd86d99b612 https://git.kernel.org/stable/c/0aa9e30b5b4af5dd504801689d6d84c584290a45 https://git.kernel.org/stable/c/e8823e6ff313465910edea07581627d85e68d9fd https://git.kernel.org/stable/c/3fc0996d2fefe61219375fd650601724b8cf2d30 https://git.kernel.org/stable/c/804b96f8d0a02fa10b92f28b2e042f9128ed3ffc https://git.kernel.org/stable/c/217bdce88b104269b73603b84d0ab4dd04f481bc https://git.kernel.org/stable/c/2f977a4c82d35d063f5fe198bbc501c4b •
CVSS: -EPSS: 0%CPEs: 9EXPL: 0CVE-2024-53197 – ALSA: usb-audio: Fix potential out-of-bound accesses for Extigy and Mbox devices
https://notcve.org/view.php?id=CVE-2024-53197
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fix potential out-of-bound accesses for Extigy and Mbox devices A bogus device can provide a bNumConfigurations value that exceeds the initial value used in usb_get_configuration for allocating dev->config. This can lead to out-of-bounds accesses later, e.g. in usb_destroy_configuration. • https://git.kernel.org/stable/c/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 https://git.kernel.org/stable/c/0b4ea4bfe16566b84645ded1403756a2dc4e0f19 https://git.kernel.org/stable/c/9b8460a2a7ce478e0b625af7c56d444dc24190f7 https://git.kernel.org/stable/c/62dc01c83fa71e10446ee4c31e0e3d5d1291e865 https://git.kernel.org/stable/c/9887d859cd60727432a01564e8f91302d361b72b https://git.kernel.org/stable/c/920a369a9f014f10ec282fd298d0666129379f1b https://git.kernel.org/stable/c/b8f8b81dabe52b413fe9e062e8a852c48dd0680d https://git.kernel.org/stable/c/379d3b9799d9da953391e973b934764f0 •
CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2024-53195 – KVM: arm64: Get rid of userspace_irqchip_in_use
https://notcve.org/view.php?id=CVE-2024-53195
In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Get rid of userspace_irqchip_in_use Improper use of userspace_irqchip_in_use led to syzbot hitting the following WARN_ON() in kvm_timer_update_irq(): WARNING: CPU: 0 PID: 3281 at arch/arm64/kvm/arch_timer.c:459 kvm_timer_update_irq+0x21c/0x394 Call trace: kvm_timer_update_irq+0x21c/0x394 arch/arm64/kvm/arch_timer.c:459 kvm_timer_vcpu_reset+0x158/0x684 arch/arm64/kvm/arch_timer.c:968 kvm_reset_vcpu+0x3b4/0x560 arch/arm64/kvm/reset.c:264 kvm_vcpu_set_target arch/arm64/kvm/arm.c:1553 [inline] kvm_arch_vcpu_ioctl_vcpu_init arch/arm64/kvm/arm.c:1573 [inline] kvm_arch_vcpu_ioctl+0x112c/0x1b3c arch/arm64/kvm/arm.c:1695 kvm_vcpu_ioctl+0x4ec/0xf74 virt/kvm/kvm_main.c:4658 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __arm64_sys_ioctl+0x108/0x184 fs/ioctl.c:893 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x78/0x1b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x1b0 arch/arm64/kernel/syscall.c:132 do_el0_svc+0x40/0x50 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x14c arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 The following sequence led to the scenario: - Userspace creates a VM and a vCPU. - The vCPU is initialized with KVM_ARM_VCPU_PMU_V3 during KVM_ARM_VCPU_INIT. - Without any other setup, such as vGIC or vPMU, userspace issues KVM_RUN on the vCPU. Since the vPMU is requested, but not setup, kvm_arm_pmu_v3_enable() fails in kvm_arch_vcpu_run_pid_change(). As a result, KVM_RUN returns after enabling the timer, but before incrementing 'userspace_irqchip_in_use': kvm_arch_vcpu_run_pid_change() ret = kvm_arm_pmu_v3_enable() if (!vcpu->arch.pmu.created) return -EINVAL; if (ret) return ret; [...] if (!irqchip_in_kernel(kvm)) static_branch_inc(&userspace_irqchip_in_use); - Userspace ignores the error and issues KVM_ARM_VCPU_INIT again. Since the timer is already enabled, control moves through the following flow, ultimately hitting the WARN_ON(): kvm_timer_vcpu_reset() if (timer->enabled) kvm_timer_update_irq() if (!userspace_irqchip()) ret = kvm_vgic_inject_irq() ret = vgic_lazy_init() if (unlikely(! • https://git.kernel.org/stable/c/dd2f9861f27571d47998d71e7516bf7216db0b52 https://git.kernel.org/stable/c/c16e2dba39ff6ae84bb8dc9c8e0fb21d9b2f6f5c https://git.kernel.org/stable/c/fe425d5239a28c21e0c83ee7a8f4cb210d29fdb4 https://git.kernel.org/stable/c/38d7aacca09230fdb98a34194fec2af597e8e20d •