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CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 0

19 May 2024 — In the Linux kernel, the following vulnerability has been resolved: drm: Check output polling initialized before disabling In drm_kms_helper_poll_disable() check if output polling support is initialized before disabling polling. If not flag this as a warning. Additionally in drm_mode_config_helper_suspend() and drm_mode_config_helper_resume() calls, that re the callers of these functions, avoid invoking them if polling is not initialized. For drivers like hyperv-drm, that do not initialize connector polling... • https://git.kernel.org/stable/c/786c27982a39d79cc753f84229eb5977ac8ef1c1 •

CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0

19 May 2024 — In the Linux kernel, the following vulnerability has been resolved: block: prevent division by zero in blk_rq_stat_sum() The expression dst->nr_samples + src->nr_samples may have zero value on overflow. It is necessary to add a check to avoid division by zero. Found by Linux Verification Center (linuxtesting.org) with Svace. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bloquear: evitar la división por cero en blk_rq_stat_sum() La expresión dst->nr_samples + src->nr_samples puede ... • https://git.kernel.org/stable/c/6a55dab4ac956deb23690eedd74e70b892a378e7 •

CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0

19 May 2024 — In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: Limit read size on v1.2 Between UCSI 1.2 and UCSI 2.0, the size of the MESSAGE_IN region was increased from 16 to 256. In order to avoid overflowing reads for older systems, add a mechanism to use the read UCSI version to truncate read sizes on UCSI v1.2. En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: usb: typec: ucsi: Limitar el tamaño de lectura en v1.2 Entre UCSI 1.2 y UCSI 2.0, el tamaño de la región... • https://git.kernel.org/stable/c/266f403ec47573046dee4bcebda82777ce702c40 •

CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0

19 May 2024 — In the Linux kernel, the following vulnerability has been resolved: fbmon: prevent division by zero in fb_videomode_from_videomode() The expression htotal * vtotal can have a zero value on overflow. It is necessary to prevent division by zero like in fb_var_to_videomode(). Found by Linux Verification Center (linuxtesting.org) with Svace. En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: fbmon: evita la división por cero en fb_videomode_from_videomode() La expresión htotal * vtotal puede tene... • https://git.kernel.org/stable/c/1fb52bc1de55e9e0bdf71fe078efd4da0889710f •

CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0

19 May 2024 — In the Linux kernel, the following vulnerability has been resolved: sysv: don't call sb_bread() with pointers_lock held syzbot is reporting sleep in atomic context in SysV filesystem [1], for sb_bread() is called with rw_spinlock held. A "write_lock(&pointers_lock) => read_lock(&pointers_lock) deadlock" bug and a "sb_bread() with write_lock(&pointers_lock)" bug were introduced by "Replace BKL for chain locking with sysvfs-private rwlock" in Linux 2.5.12. Then, "[PATCH] err1-40: sysvfs locking fix" in Linux ... • https://git.kernel.org/stable/c/13b33feb2ebddc2b1aa607f553566b18a4af1d76 •

CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0

19 May 2024 — In the Linux kernel, the following vulnerability has been resolved: nfc: nci: Fix uninit-value in nci_dev_up and nci_ntf_packet syzbot reported the following uninit-value access issue [1][2]: nci_rx_work() parses and processes received packet. When the payload length is zero, each message type handler reads uninitialized payload and KMSAN detects this issue. The receipt of a packet with a zero-size payload is considered unexpected, and therefore, such packets should be silently discarded. This patch resolve... • https://git.kernel.org/stable/c/6a2968aaf50c7a22fced77a5e24aa636281efca8 •

CVSS: 5.8EPSS: 0%CPEs: 8EXPL: 0

19 May 2024 — In the Linux kernel, the following vulnerability has been resolved: tcp: properly terminate timers for kernel sockets We had various syzbot reports about tcp timers firing after the corresponding netns has been dismantled. Fortunately Josef Bacik could trigger the issue more often, and could test a patch I wrote two years ago. When TCP sockets are closed, we call inet_csk_clear_xmit_timers() to 'stop' the timers. inet_csk_clear_xmit_timers() can be called from any context, including when socket lock is held... • https://git.kernel.org/stable/c/8a68173691f036613e3d4e6bf8dc129d4a7bf383 •

CVSS: 7.1EPSS: 0%CPEs: 6EXPL: 0

19 May 2024 — In the Linux kernel, the following vulnerability has been resolved: netfilter: validate user input for expected length I got multiple syzbot reports showing old bugs exposed by BPF after commit 20f2505fb436 ("bpf: Try to avoid kzalloc in cgroup/{s,g}etsockopt") setsockopt() @optlen argument should be taken into account before copying data. BUG: KASAN: slab-out-of-bounds in copy_from_sockptr_offset include/linux/sockptr.h:49 [inline] BUG: KASAN: slab-out-of-bounds in copy_from_sockptr include/linux/sockptr.h... • https://git.kernel.org/stable/c/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 •

CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0

19 May 2024 — In the Linux kernel, the following vulnerability has been resolved: ax25: fix use-after-free bugs caused by ax25_ds_del_timer When the ax25 device is detaching, the ax25_dev_device_down() calls ax25_ds_del_timer() to cleanup the slave_timer. When the timer handler is running, the ax25_ds_del_timer() that calls del_timer() in it will return directly. As a result, the use-after-free bugs could happen, one of the scenarios is shown below: (Thread 1) | (Thread 2) | ax25_ds_timeout() ax25_dev_device_down() | ax2... • https://git.kernel.org/stable/c/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 •

CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0

19 May 2024 — In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix infinite recursion in fib6_dump_done(). syzkaller reported infinite recursive calls of fib6_dump_done() during netlink socket destruction. [1] From the log, syzkaller sent an AF_UNSPEC RTM_GETROUTE message, and then the response was generated. The following recvmmsg() resumed the dump for IPv6, but the first call of inet6_dump_fib() failed at kzalloc() due to the fault injection. [0] 12:01:34 executing program 3: r0 = socket$nl_ro... • https://git.kernel.org/stable/c/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 •