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: 6EXPL: 0CVE-2024-26622 – tomoyo: fix UAF write bug in tomoyo_write_control()
https://notcve.org/view.php?id=CVE-2024-26622
In the Linux kernel, the following vulnerability has been resolved: tomoyo: fix UAF write bug in tomoyo_write_control() Since tomoyo_write_control() updates head->write_buf when write() of long lines is requested, we need to fetch head->write_buf after head->io_sem is held. Otherwise, concurrent write() requests can cause use-after-free-write and double-free problems. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tomoyo: corrige el error de escritura UAF en tomoyo_write_control() Dado que tomoyo_write_control() actualiza head->write_buf cuando se solicita write() de líneas largas, necesitamos recuperar head->write_buf después head->io_sem se mantiene. De lo contrario, las solicitudes de escritura () simultáneas pueden causar problemas de use-after-free-write y de doble liberación. • https://git.kernel.org/stable/c/bd03a3e4c9a9df0c6b007045fa7fc8889111a478 https://git.kernel.org/stable/c/a23ac1788e2c828c097119e9a3178f0b7e503fee https://git.kernel.org/stable/c/7d930a4da17958f869ef679ee0e4a8729337affc https://git.kernel.org/stable/c/3bfe04c1273d30b866f4c7c238331ed3b08e5824 https://git.kernel.org/stable/c/2caa605079488da9601099fbda460cfc1702839f https://git.kernel.org/stable/c/6edefe1b6c29a9932f558a898968a9fcbeec5711 https://git.kernel.org/stable/c/2f03fc340cac9ea1dc63cbf8c93dd2eb0f227815 https://lists.debian.org/debian-lts-announce/2024/06/ •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2023-52582 – netfs: Only call folio_start_fscache() one time for each folio
https://notcve.org/view.php?id=CVE-2023-52582
In the Linux kernel, the following vulnerability has been resolved: netfs: Only call folio_start_fscache() one time for each folio If a network filesystem using netfs implements a clamp_length() function, it can set subrequest lengths smaller than a page size. When we loop through the folios in netfs_rreq_unlock_folios() to set any folios to be written back, we need to make sure we only call folio_start_fscache() once for each folio. Otherwise, this simple testcase: mount -o fsc,rsize=1024,wsize=1024 127.0.0.1:/export /mnt/nfs dd if=/dev/zero of=/mnt/nfs/file.bin bs=4096 count=1 1+0 records in 1+0 records out 4096 bytes (4.1 kB, 4.0 KiB) copied, 0.0126359 s, 324 kB/s echo 3 > /proc/sys/vm/drop_caches cat /mnt/nfs/file.bin > /dev/null will trigger an oops similar to the following: page dumped because: VM_BUG_ON_FOLIO(folio_test_private_2(folio)) ------------[ cut here ]------------ kernel BUG at include/linux/netfs.h:44! ... CPU: 5 PID: 134 Comm: kworker/u16:5 Kdump: loaded Not tainted 6.4.0-rc5 ... RIP: 0010:netfs_rreq_unlock_folios+0x68e/0x730 [netfs] ... Call Trace: netfs_rreq_assess+0x497/0x660 [netfs] netfs_subreq_terminated+0x32b/0x610 [netfs] nfs_netfs_read_completion+0x14e/0x1a0 [nfs] nfs_read_completion+0x2f9/0x330 [nfs] rpc_free_task+0x72/0xa0 [sunrpc] rpc_async_release+0x46/0x70 [sunrpc] process_one_work+0x3bd/0x710 worker_thread+0x89/0x610 kthread+0x181/0x1c0 ret_from_fork+0x29/0x50 • https://git.kernel.org/stable/c/3d3c95046742e4eebaa4b891b0b01cbbed94ebbd https://git.kernel.org/stable/c/df9950d37df113db59495fa09d060754366a2b7c https://git.kernel.org/stable/c/d9f5537479d4ec97ea92ff24e81a517d5772581a https://git.kernel.org/stable/c/df1c357f25d808e30b216188330e708e09e1a412 •