CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 0CVE-2021-47469 – spi: Fix deadlock when adding SPI controllers on SPI buses
https://notcve.org/view.php?id=CVE-2021-47469
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: spi: Fix deadlock when adding SPI controllers on SPI buses Currently we have a global spi_add_lock which we take when adding new devices so that we can check that we're not trying to reuse a chip select that's already controlled. This means that if the SPI device is itself a SPI controller and triggers the instantiation of further SPI devices we trigger a deadlock as we try to register and instantiate those devices while in the process of d... • https://git.kernel.org/stable/c/aa3f3d7bef59583f2d3234173105a27ff61ef8fe •
CVSS: 4.4EPSS: 0%CPEs: 8EXPL: 0CVE-2021-47468 – isdn: mISDN: Fix sleeping function called from invalid context
https://notcve.org/view.php?id=CVE-2021-47468
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: isdn: mISDN: Fix sleeping function called from invalid context The driver can call card->isac.release() function from an atomic context. Fix this by calling this function after releasing the lock. The following log reveals it: [ 44.168226 ] BUG: sleeping function called from invalid context at kernel/workqueue.c:3018 [ 44.168941 ] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 5475, name: modprobe [ 44.169574 ] INFO: lockdep is turn... • https://git.kernel.org/stable/c/6f95c97e0f9d6eb39c3f2cb45e8fa4268d1b372b • CWE-99: Improper Control of Resource Identifiers ('Resource Injection') •
CVSS: 5.3EPSS: 0%CPEs: 2EXPL: 0CVE-2021-47467 – kunit: fix reference count leak in kfree_at_end
https://notcve.org/view.php?id=CVE-2021-47467
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: kunit: fix reference count leak in kfree_at_end The reference counting issue happens in the normal path of kfree_at_end(). When kunit_alloc_and_get_resource() is invoked, the function forgets to handle the returned resource object, whose refcount increased inside, causing a refcount leak. Fix this issue by calling kunit_alloc_resource() instead of kunit_alloc_and_get_resource(). Fixed the following when applying: Shuah Khan
CVSS: 7.1EPSS: 0%CPEs: 4EXPL: 0CVE-2021-47466 – mm, slub: fix potential memoryleak in kmem_cache_open()
https://notcve.org/view.php?id=CVE-2021-47466
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: mm, slub: fix potential memoryleak in kmem_cache_open() In error path, the random_seq of slub cache might be leaked. Fix this by using __kmem_cache_release() to release all the relevant resources. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mm, slub: corrige una posible pérdida de memoria en kmem_cache_open() En la ruta del error, es posible que se haya filtrado el random_seq del caché slub. Solucione este problema us... • https://git.kernel.org/stable/c/210e7a43fa905bccafa9bb5966fba1d71f33eb8b • CWE-402: Transmission of Private Resources into a New Sphere ('Resource Leak') •
CVSS: 7.1EPSS: 0%CPEs: 4EXPL: 0CVE-2021-47465 – KVM: PPC: Book3S HV: Fix stack handling in idle_kvm_start_guest()
https://notcve.org/view.php?id=CVE-2021-47465
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: KVM: PPC: Book3S HV: Fix stack handling in idle_kvm_start_guest() In commit 10d91611f426 ("powerpc/64s: Reimplement book3s idle code in C") kvm_start_guest() became idle_kvm_start_guest(). The old code allocated a stack frame on the emergency stack, but didn't use the frame to store anything, and also didn't store anything in its caller's frame. idle_kvm_start_guest() on the other hand is written more like a normal C function, it creates a ... • https://git.kernel.org/stable/c/10d91611f426d4bafd2a83d966c36da811b2f7ad •
CVSS: 7.4EPSS: 0%CPEs: 4EXPL: 0CVE-2021-47464 – audit: fix possible null-pointer dereference in audit_filter_rules
https://notcve.org/view.php?id=CVE-2021-47464
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: audit: fix possible null-pointer dereference in audit_filter_rules Fix possible null-pointer dereference in audit_filter_rules. audit_filter_rules() error: we previously assumed 'ctx' could be null En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: auditoría: corrige una posible desreferencia de puntero nulo en audit_filter_rules. Corrige una posible desreferencia de puntero nulo en audit_filter_rules. Error audit_filter_rul... • https://git.kernel.org/stable/c/bf361231c295d92a28ca283ea713f56e93e55796 • CWE-476: NULL Pointer Dereference •
CVSS: 7.0EPSS: 0%CPEs: 3EXPL: 0CVE-2021-47461 – userfaultfd: fix a race between writeprotect and exit_mmap()
https://notcve.org/view.php?id=CVE-2021-47461
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: userfaultfd: fix a race between writeprotect and exit_mmap() A race is possible when a process exits, its VMAs are removed by exit_mmap() and at the same time userfaultfd_writeprotect() is called. The race was detected by KASAN on a development kernel, but it appears to be possible on vanilla kernels as well. Use mmget_not_zero() to prevent the race as done in other userfaultfd operations. En el kernel de Linux, se ha resuelto la siguiente ... • https://git.kernel.org/stable/c/63b2d4174c4ad1f40b48d7138e71bcb564c1fe03 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 7.8EPSS: 0%CPEs: 8EXPL: 0CVE-2021-47460 – ocfs2: fix data corruption after conversion from inline format
https://notcve.org/view.php?id=CVE-2021-47460
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix data corruption after conversion from inline format Commit 6dbf7bb55598 ("fs: Don't invalidate page buffers in block_write_full_page()") uncovered a latent bug in ocfs2 conversion from inline inode format to a normal inode format. The code in ocfs2_convert_inline_data_to_extents() attempts to zero out the whole cluster allocated for file data by grabbing, zeroing, and dirtying all pages covering this cluster. However these pages ... • https://git.kernel.org/stable/c/acef5107e2eacb08a16ad5db60320d65bd26a6c0 •
CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 0CVE-2021-47459 – can: j1939: j1939_netdev_start(): fix UAF for rx_kref of j1939_priv
https://notcve.org/view.php?id=CVE-2021-47459
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: can: j1939: j1939_netdev_start(): fix UAF for rx_kref of j1939_priv It will trigger UAF for rx_kref of j1939_priv as following. cpu0 cpu1 j1939_sk_bind(socket0, ndev0, ...) j1939_netdev_start j1939_sk_bind(socket1, ndev0, ...) j1939_netdev_start j1939_priv_set j1939_priv_get_by_ndev_locked j1939_jsk_add ..... j1939_netdev_stop kref_put_lock(&priv->rx_kref, ...) kref_get(&priv->rx_kref, ...) REFCOUNT_WARN("addition on 0;...") ===============... • https://git.kernel.org/stable/c/9d71dd0c70099914fcd063135da3c580865e924c • CWE-416: Use After Free •
CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0CVE-2021-47458 – ocfs2: mount fails with buffer overflow in strlen
https://notcve.org/view.php?id=CVE-2021-47458
22 May 2024 — In the Linux kernel, the following vulnerability has been resolved: ocfs2: mount fails with buffer overflow in strlen Starting with kernel 5.11 built with CONFIG_FORTIFY_SOURCE mouting an ocfs2 filesystem with either o2cb or pcmk cluster stack fails with the trace below. Problem seems to be that strings for cluster stack and cluster name are not guaranteed to be null terminated in the disk representation, while strlcpy assumes that the source string is always null terminated. This causes a read outside of t... • https://git.kernel.org/stable/c/ac011cb3ff7a76b3e0e6e77158ee4ba2f929e1fb •