CVSS: 4.4EPSS: 0%CPEs: 9EXPL: 0CVE-2021-47321 – watchdog: Fix possible use-after-free by calling del_timer_sync()
https://notcve.org/view.php?id=CVE-2021-47321
In the Linux kernel, the following vulnerability has been resolved: watchdog: Fix possible use-after-free by calling del_timer_sync() This driver's remove path calls del_timer(). However, that function does not wait until the timer handler finishes. This means that the timer handler may still be running after the driver's remove function has finished, which would result in a use-after-free. Fix by calling del_timer_sync(), which makes sure the timer handler has finished, and unable to re-schedule itself. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: perro guardián: solucione el posible use after free llamando a del_timer_sync(). La ruta de eliminación de este controlador llama a del_timer(). • https://git.kernel.org/stable/c/58606882ad8ec6c39e0f40344b922921ef94ab4d https://git.kernel.org/stable/c/ca96b8ea5e74956071154bdb456778cc3027e79f https://git.kernel.org/stable/c/8bec568d7518b1504a602ed5376bb322e4dbb270 https://git.kernel.org/stable/c/ecd620e0fb1ff7f78fdb593379b2e6938c99707a https://git.kernel.org/stable/c/db222f1477ad5692cd454709b714949807e5d111 https://git.kernel.org/stable/c/66ba9cf929b1c4fabf545bd4c18f6f64e23e46e4 https://git.kernel.org/stable/c/4c05dac488a660fe2925c047ecb119e7afaaeb1e https://git.kernel.org/stable/c/1a053c4d716898a53c2e31c574a70ea0c • CWE-416: Use After Free •
CVSS: -EPSS: 0%CPEs: 9EXPL: 0CVE-2021-47319 – virtio-blk: Fix memory leak among suspend/resume procedure
https://notcve.org/view.php?id=CVE-2021-47319
In the Linux kernel, the following vulnerability has been resolved: virtio-blk: Fix memory leak among suspend/resume procedure The vblk->vqs should be freed before we call init_vqs() in virtblk_restore(). En el kernel de Linux, se resolvió la siguiente vulnerabilidad: virtio-blk: corrige la pérdida de memoria entre el procedimiento de suspensión/reanudación. El vblk->vqs debe liberarse antes de llamar a init_vqs() en virtblk_restore(). • https://git.kernel.org/stable/c/381bde79d11e596002edfd914e6714291826967a https://git.kernel.org/stable/c/102d6bc6475ab09bab579c18704e6cf8d898e93c https://git.kernel.org/stable/c/863da837964c80c72e368a4f748c30d25daa1815 https://git.kernel.org/stable/c/600942d2fd49b90e44857d20c774b20d16f3130f https://git.kernel.org/stable/c/04c6e60b884cb5e94ff32af46867fb41d5848358 https://git.kernel.org/stable/c/cd24da0db9f75ca11eaf6060f0ccb90e2f3be3b0 https://git.kernel.org/stable/c/ca2b8ae93a6da9839dc7f9eb9199b18aa03c3dae https://git.kernel.org/stable/c/29a2f4a3214aa14d61cc9737c9f886dae •
CVSS: -EPSS: 0%CPEs: 6EXPL: 0CVE-2021-47308 – scsi: libfc: Fix array index out of bound exception
https://notcve.org/view.php?id=CVE-2021-47308
In the Linux kernel, the following vulnerability has been resolved: scsi: libfc: Fix array index out of bound exception Fix array index out of bound exception in fc_rport_prli_resp(). En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: libfc: Corregir excepción de índice de matriz fuera de los límites. Corregir excepción de índice de matriz fuera de los límites en fc_rport_prli_resp(). • https://git.kernel.org/stable/c/44651522941c623e20882b3b443f23f77de1ea8b https://git.kernel.org/stable/c/4921b1618045ffab71b1050bf0014df3313a2289 https://git.kernel.org/stable/c/0fe70c15f9435bb3c50954778245d62ee38b0e03 https://git.kernel.org/stable/c/a4a54c54af2516caa9c145015844543cfc84316a https://git.kernel.org/stable/c/8511293e643a18b248510ae5734e4f360754348c https://git.kernel.org/stable/c/b27c4577557045f1ab3cdfeabfc7f3cd24aca1fe •
CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2021-47307 – cifs: prevent NULL deref in cifs_compose_mount_options()
https://notcve.org/view.php?id=CVE-2021-47307
In the Linux kernel, the following vulnerability has been resolved: cifs: prevent NULL deref in cifs_compose_mount_options() The optional @ref parameter might contain an NULL node_name, so prevent dereferencing it in cifs_compose_mount_options(). Addresses-Coverity: 1476408 ("Explicit null dereferenced") En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: cifs: evita la eliminación de desreferencias NULL en cifs_compose_mount_options() El parámetro @ref opcional puede contener un nombre de nodo NULL, por lo que se debe evitar eliminar la referencia a él en cifs_compose_mount_options(). Direcciones-Cobertura: 1476408 ("Nulo explícito desreferenciado") • https://git.kernel.org/stable/c/f7d1fa65e74263d11f90ddd33b4d4cd905a93759 https://git.kernel.org/stable/c/e58c162789becede894d3e94c0ce6695a2ef5796 https://git.kernel.org/stable/c/ae3d181f4e912f51af7776ea165f199b16fc165d https://git.kernel.org/stable/c/03313d1c3a2f086bb60920607ab79ac8f8578306 •
CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 0CVE-2021-47289 – ACPI: fix NULL pointer dereference
https://notcve.org/view.php?id=CVE-2021-47289
In the Linux kernel, the following vulnerability has been resolved: ACPI: fix NULL pointer dereference Commit 71f642833284 ("ACPI: utils: Fix reference counting in for_each_acpi_dev_match()") started doing "acpi_dev_put()" on a pointer that was possibly NULL. That fails miserably, because that helper inline function is not set up to handle that case. Just make acpi_dev_put() silently accept a NULL pointer, rather than calling down to put_device() with an invalid offset off that NULL pointer. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: ACPI: corrige la desreferencia del puntero NULL. La confirmación 71f642833284 ("ACPI: utils: corrige el recuento de referencias en for_each_acpi_dev_match()") comenzó a hacer "acpi_dev_put()" en un puntero que posiblemente era NULL. Eso falla estrepitosamente, porque esa función auxiliar en línea no está configurada para manejar ese caso. • https://git.kernel.org/stable/c/38f54217b423c0101d03a00feec6fb8ec608b12e https://git.kernel.org/stable/c/cae3fa3d8165761f3000f523b11cfa1cd35206bc https://git.kernel.org/stable/c/ccf23a0888077a25a0793a746c3941db2a7562e4 https://git.kernel.org/stable/c/fc68f42aa737dc15e7665a4101d4168aadb8e4c4 https://access.redhat.com/security/cve/CVE-2021-47289 https://bugzilla.redhat.com/show_bug.cgi?id=2282508 • CWE-476: NULL Pointer Dereference •