CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2023-52583 – ceph: fix deadlock or deadcode of misusing dget()
https://notcve.org/view.php?id=CVE-2023-52583
In the Linux kernel, the following vulnerability has been resolved: ceph: fix deadlock or deadcode of misusing dget() The lock order is incorrect between denty and its parent, we should always make sure that the parent get the lock first. But since this deadcode is never used and the parent dir will always be set from the callers, let's just remove it. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: ceph: corrige el punto muerto o el código muerto por uso incorrecto de dget() El orden de bloqueo es incorrecto entre denty y su padre, siempre debemos asegurarnos de que el padre obtenga el bloqueo primero. Pero dado que este código muerto nunca se usa y el directorio principal siempre será configurado por quienes llaman, simplemente eliminémoslo. • https://git.kernel.org/stable/c/eb55ba8aa7fb7aad54f40fbf4d8dcdfdba0bebf6 https://git.kernel.org/stable/c/6ab4fd508fad942f1f1ba940492f2735e078e980 https://git.kernel.org/stable/c/e016e358461b89b231626fcf78c5c38e35c44fd3 https://git.kernel.org/stable/c/a9c15d6e8aee074fae66c04d114f20b84274fcca https://git.kernel.org/stable/c/7f2649c94264d00df6b6ac27161e9f4372a3450e https://git.kernel.org/stable/c/196b87e5c00ce021e164a5de0f0d04f4116a9160 https://git.kernel.org/stable/c/76cb2aa3421fee4fde706dec41b1344bc0a9ad67 https://git.kernel.org/stable/c/b493ad718b1f0357394d2cdecbf00a44a •
CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2021-47083 – pinctrl: mediatek: fix global-out-of-bounds issue
https://notcve.org/view.php?id=CVE-2021-47083
In the Linux kernel, the following vulnerability has been resolved: pinctrl: mediatek: fix global-out-of-bounds issue When eint virtual eint number is greater than gpio number, it maybe produce 'desc[eint_n]' size globle-out-of-bounds issue. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: pinctrl: mediatek: soluciona el problema global fuera de los límites Cuando el número eint virtual eint es mayor que el número gpio, puede producir un tamaño 'desc[eint_n]' globle-out- cuestión de fuera de los límites. • https://git.kernel.org/stable/c/f373298e1bf0c6ea097c0bcc558dc43ad53e421f https://git.kernel.org/stable/c/441d3873664d170982922c5d2fc01fa89d9439ed https://git.kernel.org/stable/c/fb563baa3eb8e7a15f2cff3c2695e2cca0493e69 https://git.kernel.org/stable/c/2d5446da5acecf9c67db1c9d55ae2c3e5de01f8d •
CVSS: -EPSS: 0%CPEs: 5EXPL: 0CVE-2021-47082 – tun: avoid double free in tun_free_netdev
https://notcve.org/view.php?id=CVE-2021-47082
In the Linux kernel, the following vulnerability has been resolved: tun: avoid double free in tun_free_netdev Avoid double free in tun_free_netdev() by moving the dev->tstats and tun->security allocs to a new ndo_init routine (tun_net_init()) that will be called by register_netdevice(). ndo_init is paired with the desctructor (tun_free_netdev()), so if there's an error in register_netdevice() the destructor will handle the frees. BUG: KASAN: double-free or invalid-free in selinux_tun_dev_free_security+0x1a/0x20 security/selinux/hooks.c:5605 CPU: 0 PID: 25750 Comm: syz-executor416 Not tainted 5.16.0-rc2-syzk #1 Hardware name: Red Hat KVM, BIOS Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x89/0xb5 lib/dump_stack.c:106 print_address_description.constprop.9+0x28/0x160 mm/kasan/report.c:247 kasan_report_invalid_free+0x55/0x80 mm/kasan/report.c:372 ____kasan_slab_free mm/kasan/common.c:346 [inline] __kasan_slab_free+0x107/0x120 mm/kasan/common.c:374 kasan_slab_free include/linux/kasan.h:235 [inline] slab_free_hook mm/slub.c:1723 [inline] slab_free_freelist_hook mm/slub.c:1749 [inline] slab_free mm/slub.c:3513 [inline] kfree+0xac/0x2d0 mm/slub.c:4561 selinux_tun_dev_free_security+0x1a/0x20 security/selinux/hooks.c:5605 security_tun_dev_free_security+0x4f/0x90 security/security.c:2342 tun_free_netdev+0xe6/0x150 drivers/net/tun.c:2215 netdev_run_todo+0x4df/0x840 net/core/dev.c:10627 rtnl_unlock+0x13/0x20 net/core/rtnetlink.c:112 __tun_chr_ioctl+0x80c/0x2870 drivers/net/tun.c:3302 tun_chr_ioctl+0x2f/0x40 drivers/net/tun.c:3311 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x19d/0x220 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3a/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tun: evita la doble liberación en tun_free_netdev Evita la doble liberación en tun_free_netdev() moviendo las asignaciones dev->tstats y tun->security a una nueva rutina ndo_init (tun_net_init()) que será llamado por Register_netdevice(). ndo_init está emparejado con el destructor (tun_free_netdev()), por lo que si hay un error en Register_netdevice() el destructor manejará las liberaciones. ERROR: KASAN: doble liberación o no válido en selinux_tun_dev_free_security+0x1a/0x20 security/selinux/hooks.c:5605 CPU: 0 PID: 25750 Comm: syz-executor416 No contaminado 5.16.0-rc2-syzk #1 Nombre de hardware : Red Hat KVM, seguimiento de llamadas de BIOS: __dump_stack lib/dump_stack.c:88 [en línea] dump_stack_lvl+0x89/0xb5 lib/dump_stack.c:106 print_address_description.constprop.9+0x28/0x160 mm/kasan/report. c:247 kasan_report_invalid_free+0x55/0x80 mm/kasan/report.c:372 ____kasan_slab_free mm/kasan/common.c:346 [en línea] __kasan_slab_free+0x107/0x120 mm/kasan/common.c:374 kasan_slab_free include/linux/kasan .h:235 [en línea] slab_free_hook mm/slub.c:1723 [en línea] slab_free_freelist_hook mm/slub.c:1749 [en línea] slab_free mm/slub.c:3513 [en línea] kfree+0xac/0x2d0 mm/slub.c :4561 selinux_tun_dev_free_security+0x1a/0x20 seguridad/selinux/hooks.c:5605 seguridad_tun_dev_free_security+0x4f/0x90 seguridad/seguridad.c:2342 tun_free_netdev+0xe6/0x150 drivers/net/tun.c:2215 netdev_run_todo+0x4df/0x840 net/ núcleo /dev.c:10627 rtnl_unlock+0x13/0x20 net/core/rtnetlink.c:112 __tun_chr_ioctl+0x80c/0x2870 drivers/net/tun.c:3302 tun_chr_ioctl+0x2f/0x40 drivers/net/tun.c:3311 vfs_ioctl fs /ioctl.c:51 [en línea] __do_sys_ioctl fs/ioctl.c:874 [en línea] __se_sys_ioctl fs/ioctl.c:860 [en línea] __x64_sys_ioctl+0x19d/0x220 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/ common.c:50 [en línea] do_syscall_64+0x3a/0x80 arch/x86/entry/common.c:80 Entry_SYSCALL_64_after_hwframe+0x44/0xae • https://git.kernel.org/stable/c/8eb43d635950e27c29f1e9e49a23b31637f37757 https://git.kernel.org/stable/c/0c0e566f0387490d16f166808c72e9c772027681 https://git.kernel.org/stable/c/a01a4e9f5dc93335c716fa4023b1901956e8c904 https://git.kernel.org/stable/c/3cb5ae77799e8ed6ec3fec0b6b4cd07f01650cc5 https://git.kernel.org/stable/c/158b515f703e75e7d68289bf4d98c664e1d632df •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2021-47086 – phonet/pep: refuse to enable an unbound pipe
https://notcve.org/view.php?id=CVE-2021-47086
In the Linux kernel, the following vulnerability has been resolved: phonet/pep: refuse to enable an unbound pipe This ioctl() implicitly assumed that the socket was already bound to a valid local socket name, i.e. Phonet object. If the socket was not bound, two separate problems would occur: 1) We'd send an pipe enablement request with an invalid source object. 2) Later socket calls could BUG on the socket unexpectedly being connected yet not bound to a valid object. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: phonet/pep: se niega a habilitar una tubería independiente. Este ioctl() supone implícitamente que el socket ya estaba vinculado a un nombre de socket local válido, es decir, objeto Phonet. • https://git.kernel.org/stable/c/0bbdd62ce9d44f3a22059b3d20a0df977d9f6d59 https://git.kernel.org/stable/c/b10c7d745615a092a50c2e03ce70446d2bec2aca https://git.kernel.org/stable/c/311601f114859d586d5ef8833d60d3aa23282161 https://git.kernel.org/stable/c/982b6ba1ce626ef87e5c29f26f2401897554f235 https://git.kernel.org/stable/c/48c76fc53582e7f13c1e0b11c916e503256c4d0b https://git.kernel.org/stable/c/52ad5da8e316fa11e3a50b3f089aa63e4089bf52 https://git.kernel.org/stable/c/53ccdc73eedaf0e922c45b569b797d2796fbaafa https://git.kernel.org/stable/c/75a2f31520095600f650597c0ac41f48b •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2023-52572 – cifs: Fix UAF in cifs_demultiplex_thread()
https://notcve.org/view.php?id=CVE-2023-52572
In the Linux kernel, the following vulnerability has been resolved: cifs: Fix UAF in cifs_demultiplex_thread() There is a UAF when xfstests on cifs: BUG: KASAN: use-after-free in smb2_is_network_name_deleted+0x27/0x160 Read of size 4 at addr ffff88810103fc08 by task cifsd/923 CPU: 1 PID: 923 Comm: cifsd Not tainted 6.1.0-rc4+ #45 ... Call Trace: <TASK> dump_stack_lvl+0x34/0x44 print_report+0x171/0x472 kasan_report+0xad/0x130 kasan_check_range+0x145/0x1a0 smb2_is_network_name_deleted+0x27/0x160 cifs_demultiplex_thread.cold+0x172/0x5a4 kthread+0x165/0x1a0 ret_from_fork+0x1f/0x30 </TASK> Allocated by task 923: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 __kasan_slab_alloc+0x54/0x60 kmem_cache_alloc+0x147/0x320 mempool_alloc+0xe1/0x260 cifs_small_buf_get+0x24/0x60 allocate_buffers+0xa1/0x1c0 cifs_demultiplex_thread+0x199/0x10d0 kthread+0x165/0x1a0 ret_from_fork+0x1f/0x30 Freed by task 921: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 kasan_save_free_info+0x2a/0x40 ____kasan_slab_free+0x143/0x1b0 kmem_cache_free+0xe3/0x4d0 cifs_small_buf_release+0x29/0x90 SMB2_negotiate+0x8b7/0x1c60 smb2_negotiate+0x51/0x70 cifs_negotiate_protocol+0xf0/0x160 cifs_get_smb_ses+0x5fa/0x13c0 mount_get_conns+0x7a/0x750 cifs_mount+0x103/0xd00 cifs_smb3_do_mount+0x1dd/0xcb0 smb3_get_tree+0x1d5/0x300 vfs_get_tree+0x41/0xf0 path_mount+0x9b3/0xdd0 __x64_sys_mount+0x190/0x1d0 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 The UAF is because: mount(pid: 921) | cifsd(pid: 923) -------------------------------|------------------------------- | cifs_demultiplex_thread SMB2_negotiate | cifs_send_recv | compound_send_recv | smb_send_rqst | wait_for_response | wait_event_state [1] | | standard_receive3 | cifs_handle_standard | handle_mid | mid->resp_buf = buf; [2] | dequeue_mid [3] KILL the process [4] | resp_iov[i].iov_base = buf | free_rsp_buf [5] | | is_network_name_deleted [6] | callback 1. After send request to server, wait the response until mid->mid_state != SUBMITTED; 2. Receive response from server, and set it to mid; 3. Set the mid state to RECEIVED; 4. • https://git.kernel.org/stable/c/ec637e3ffb6b978143652477c7c5f96c9519b691 https://git.kernel.org/stable/c/908b3b5e97d25e879de3d1f172a255665491c2c3 https://git.kernel.org/stable/c/76569e3819e0bb59fc19b1b8688b017e627c268a https://git.kernel.org/stable/c/d527f51331cace562393a8038d870b3e9916686f •