CVE-2023-52881 – tcp: do not accept ACK of bytes we never sent
https://notcve.org/view.php?id=CVE-2023-52881
29 May 2024 — In the Linux kernel, the following vulnerability has been resolved: tcp: do not accept ACK of bytes we never sent This patch is based on a detailed report and ideas from Yepeng Pan and Christian Rossow. ACK seq validation is currently following RFC 5961 5.2 guidelines: The ACK value is considered acceptable only if it is in the range of ((SND.UNA - MAX.SND.WND) <= SEG.ACK <= SND.NXT). All incoming segments whose ACK value doesn't satisfy the above condition MUST be discarded and an ACK sent back. It needs t... • https://git.kernel.org/stable/c/354e4aa391ed50a4d827ff6fc11e0667d0859b25 •
CVE-2024-36015 – ppdev: Add an error check in register_device
https://notcve.org/view.php?id=CVE-2024-36015
29 May 2024 — In the Linux kernel, the following vulnerability has been resolved: ppdev: Add an error check in register_device In register_device, the return value of ida_simple_get is unchecked, in witch ida_simple_get will use an invalid index value. To address this issue, index should be checked after ida_simple_get. When the index value is abnormal, a warning message should be printed, the port should be dropped, and the value should be recorded. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ppde... • https://git.kernel.org/stable/c/9a69645dde1188723d80745c1bc6ee9af2cbe2a7 •
CVE-2024-36014 – drm/arm/malidp: fix a possible null pointer dereference
https://notcve.org/view.php?id=CVE-2024-36014
29 May 2024 — In the Linux kernel, the following vulnerability has been resolved: drm/arm/malidp: fix a possible null pointer dereference In malidp_mw_connector_reset, new memory is allocated with kzalloc, but no check is performed. In order to prevent null pointer dereferencing, ensure that mw_state is checked before calling __drm_atomic_helper_connector_reset. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/arm/malidp: corrige una posible desreferencia del puntero nulo En malidp_mw_connector_rese... • https://git.kernel.org/stable/c/8cbc5caf36ef7a299b5cbedf55f27fd898d700bf •
CVE-2023-52880 – tty: n_gsm: require CAP_NET_ADMIN to attach N_GSM0710 ldisc
https://notcve.org/view.php?id=CVE-2023-52880
24 May 2024 — In the Linux kernel, the following vulnerability has been resolved: tty: n_gsm: require CAP_NET_ADMIN to attach N_GSM0710 ldisc Any unprivileged user can attach N_GSM0710 ldisc, but it requires CAP_NET_ADMIN to create a GSM network anyway. Require initial namespace CAP_NET_ADMIN to do that. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tty: n_gsm: requiere CAP_NET_ADMIN para adjuntar el ldisc N_GSM0710. Cualquier usuario sin privilegios puede adjuntar el ldisc N_GSM0710, pero de todos m... • https://git.kernel.org/stable/c/7d303dee473ba3529d75b63491e9963342107bed • CWE-99: Improper Control of Resource Identifiers ('Resource Injection') •
CVE-2021-47572 – net: nexthop: fix null pointer dereference when IPv6 is not enabled
https://notcve.org/view.php?id=CVE-2021-47572
24 May 2024 — In the Linux kernel, the following vulnerability has been resolved: net: nexthop: fix null pointer dereference when IPv6 is not enabled When we try to add an IPv6 nexthop and IPv6 is not enabled (!CONFIG_IPV6) we'll hit a NULL pointer dereference[1] in the error path of nh_create_ipv6() due to calling ipv6_stub->fib6_nh_release. The bug has been present since the beginning of IPv6 nexthop gateway support. Commit 1aefd3de7bc6 ("ipv6: Add fib6_nh_init and release to stubs") tells us that only fib6_nh_init has... • https://git.kernel.org/stable/c/53010f991a9f5e4ed2db705ddde6ff32709192a2 • CWE-476: NULL Pointer Dereference •
CVE-2021-47571 – staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect()
https://notcve.org/view.php?id=CVE-2021-47571
24 May 2024 — In the Linux kernel, the following vulnerability has been resolved: staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect() The free_rtllib() function frees the "dev" pointer so there is use after free on the next line. Re-arrange things to avoid that. En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: staging: rtl8192e: Corrige el use after free en _rtl92e_pci_disconnect() La función free_rtllib() libera el puntero "dev" para que haya use after free en la siguiente línea. Reorganic... • https://git.kernel.org/stable/c/66898177e7e5486dc77a4ba742efa4e2e9e900a4 • CWE-416: Use After Free •
CVE-2021-47567 – powerpc/32: Fix hardlockup on vmap stack overflow
https://notcve.org/view.php?id=CVE-2021-47567
24 May 2024 — In the Linux kernel, the following vulnerability has been resolved: powerpc/32: Fix hardlockup on vmap stack overflow Since the commit c118c7303ad5 ("powerpc/32: Fix vmap stack - Do not activate MMU before reading task struct") a vmap stack overflow results in a hard lockup. This is because emergency_ctx is still addressed with its virtual address allthough data MMU is not active anymore at that time. Fix it by using a physical address instead. En el kernel de Linux, se ha resuelto la siguiente vulnerabilid... • https://git.kernel.org/stable/c/c118c7303ad528be8ff2aea8cd1ee15452c763f0 •
CVE-2021-47566 – proc/vmcore: fix clearing user buffer by properly using clear_user()
https://notcve.org/view.php?id=CVE-2021-47566
24 May 2024 — In the Linux kernel, the following vulnerability has been resolved: proc/vmcore: fix clearing user buffer by properly using clear_user() To clear a user buffer we cannot simply use memset, we have to use clear_user(). With a virtio-mem device that registers a vmcore_cb and has some logically unplugged memory inside an added Linux memory block, I can easily trigger a BUG by copying the vmcore via "cp": systemd[1]: Starting Kdump Vmcore Save Service... kdump[420]: Kdump is using the default log level(3). kdum... • https://git.kernel.org/stable/c/997c136f518c5debd63847e78e2a8694f56dcf90 • CWE-501: Trust Boundary Violation •
CVE-2021-47565 – scsi: mpt3sas: Fix kernel panic during drive powercycle test
https://notcve.org/view.php?id=CVE-2021-47565
24 May 2024 — In the Linux kernel, the following vulnerability has been resolved: scsi: mpt3sas: Fix kernel panic during drive powercycle test While looping over shost's sdev list it is possible that one of the drives is getting removed and its sas_target object is freed but its sdev object remains intact. Consequently, a kernel panic can occur while the driver is trying to access the sas_address field of sas_target object without also checking the sas_target object for NULL. En el kernel de Linux, se resolvió la siguien... • https://git.kernel.org/stable/c/f92363d12359498f9a9960511de1a550f0ec41c2 •
CVE-2021-47564 – net: marvell: prestera: fix double free issue on err path
https://notcve.org/view.php?id=CVE-2021-47564
24 May 2024 — In the Linux kernel, the following vulnerability has been resolved: net: marvell: prestera: fix double free issue on err path fix error path handling in prestera_bridge_port_join() that cases prestera driver to crash (see below). Trace: Internal error: Oops: 96000044 [#1] SMP Modules linked in: prestera_pci prestera uio_pdrv_genirq CPU: 1 PID: 881 Comm: ip Not tainted 5.15.0 #1 pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : prestera_bridge_destroy+0x2c/0xb0 [prestera] lr : prestera_bri... • https://git.kernel.org/stable/c/e1189d9a5fbec8153dbe03f3589bc2baa96694e2 •