CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-38618 – ALSA: timer: Set lower bound of start tick time
https://notcve.org/view.php?id=CVE-2024-38618
In the Linux kernel, the following vulnerability has been resolved: ALSA: timer: Set lower bound of start tick time Currently ALSA timer doesn't have the lower limit of the start tick time, and it allows a very small size, e.g. 1 tick with 1ns resolution for hrtimer. Such a situation may lead to an unexpected RCU stall, where the callback repeatedly queuing the expire update, as reported by fuzzer. This patch introduces a sanity check of the timer start tick time, so that the system returns an error when a too small start size is set. As of this patch, the lower limit is hard-coded to 100us, which is small enough but can still work somehow. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ALSA: temporizador: establece el límite inferior del tiempo de inicio. Actualmente, el temporizador ALSA no tiene el límite inferior del tiempo de inicio y permite un tamaño muy pequeño, por ejemplo, 1 tic. con resolución de 1ns para hrtimer. Tal situación puede provocar una parada inesperada de la RCU, donde la devolución de llamada pone en cola repetidamente la actualización caducada, según lo informado por fuzzer. • https://git.kernel.org/stable/c/68396c825c43664b20a3a1ba546844deb2b4e48f https://git.kernel.org/stable/c/74bfb8d90f2601718ae203faf45a196844c01fa1 https://git.kernel.org/stable/c/bdd0aa055b8ec7e24bbc19513f3231958741d0ab https://git.kernel.org/stable/c/83f0ba8592b9e258fd80ac6486510ab1dcd7ad6e https://git.kernel.org/stable/c/ceab795a67dd28dd942d0d8bba648c6c0f7a044b https://git.kernel.org/stable/c/2c95241ac5fc90c929d6c0c023e84bf0d30e84c3 https://git.kernel.org/stable/c/abb1ad69d98cf1ff25bb14fff0e7c3f66239e1cd https://git.kernel.org/stable/c/4a63bd179fa8d3fcc44a0d9d71d941ddd •
CVSS: -EPSS: 0%CPEs: 9EXPL: 0CVE-2024-38607 – macintosh/via-macii: Fix "BUG: sleeping function called from invalid context"
https://notcve.org/view.php?id=CVE-2024-38607
In the Linux kernel, the following vulnerability has been resolved: macintosh/via-macii: Fix "BUG: sleeping function called from invalid context" The via-macii ADB driver calls request_irq() after disabling hard interrupts. But disabling interrupts isn't necessary here because the VIA shift register interrupt was masked during VIA1 initialization. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: macintosh/via-macii: Corrección "ERROR: función de suspensión llamada desde un contexto no válido" El controlador ADB via-macii llama a request_irq() después de deshabilitar las interrupciones bruscas. Pero aquí no es necesario deshabilitar las interrupciones porque la interrupción del registro de desplazamiento de VIA se enmascaró durante la inicialización de VIA1. • https://git.kernel.org/stable/c/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 https://git.kernel.org/stable/c/e4ff8bcfb2841fe4e17e5901578b632adb89036d https://git.kernel.org/stable/c/1e9c3f2caec548cfa7a65416ec4e6006e542f18e https://git.kernel.org/stable/c/280619bbdeac186fb320fab3d61122d2a085def8 https://git.kernel.org/stable/c/010d4cb19bb13f423e3e746b824f314a9bf3e9a9 https://git.kernel.org/stable/c/787fb79efc15b3b86442ecf079b8148f173376d7 https://git.kernel.org/stable/c/d43a8c7ec0841e0ff91a968770aeca83f0fd4c56 https://git.kernel.org/stable/c/5900a88e897e6deb1bdce09ee34167a81 •
CVSS: -EPSS: 0%CPEs: 6EXPL: 0CVE-2024-38600 – ALSA: Fix deadlocks with kctl removals at disconnection
https://notcve.org/view.php?id=CVE-2024-38600
In the Linux kernel, the following vulnerability has been resolved: ALSA: Fix deadlocks with kctl removals at disconnection In snd_card_disconnect(), we set card->shutdown flag at the beginning, call callbacks and do sync for card->power_ref_sleep waiters at the end. The callback may delete a kctl element, and this can lead to a deadlock when the device was in the suspended state. Namely: * A process waits for the power up at snd_power_ref_and_wait() in snd_ctl_info() or read/write() inside card->controls_rwsem. * The system gets disconnected meanwhile, and the driver tries to delete a kctl via snd_ctl_remove*(); it tries to take card->controls_rwsem again, but this is already locked by the above. Since the sleeper isn't woken up, this deadlocks. An easy fix is to wake up sleepers before processing the driver disconnect callbacks but right after setting the card->shutdown flag. Then all sleepers will abort immediately, and the code flows again. So, basically this patch moves the wait_event() call at the right timing. While we're at it, just to be sure, call wait_event_all() instead of wait_event(), although we don't use exclusive events on this queue for now. • https://git.kernel.org/stable/c/ff80185e7b7b547a0911fcfc8aefc61c3e8304d7 https://git.kernel.org/stable/c/c2fb439f4f1425a961d20bec818fed2c2d9ef70a https://git.kernel.org/stable/c/2f103287ef7960854808930499d1181bd0145d68 https://git.kernel.org/stable/c/88ce3fe255d58a93624b467af036dc3519f309c7 https://git.kernel.org/stable/c/6b55e879e7bd023a03888fc6c8339edf82f576f4 https://git.kernel.org/stable/c/87988a534d8e12f2e6fc01fe63e6c1925dc5307c •
CVSS: -EPSS: 0%CPEs: 9EXPL: 0CVE-2024-38599 – jffs2: prevent xattr node from overflowing the eraseblock
https://notcve.org/view.php?id=CVE-2024-38599
In the Linux kernel, the following vulnerability has been resolved: jffs2: prevent xattr node from overflowing the eraseblock Add a check to make sure that the requested xattr node size is no larger than the eraseblock minus the cleanmarker. Unlike the usual inode nodes, the xattr nodes aren't split into parts and spread across multiple eraseblocks, which means that a xattr node must not occupy more than one eraseblock. If the requested xattr value is too large, the xattr node can spill onto the next eraseblock, overwriting the nodes and causing errors such as: jffs2: argh. node added in wrong place at 0x0000b050(2) jffs2: nextblock 0x0000a000, expected at 0000b00c jffs2: error: (823) do_verify_xattr_datum: node CRC failed at 0x01e050, read=0xfc892c93, calc=0x000000 jffs2: notice: (823) jffs2_get_inode_nodes: Node header CRC failed at 0x01e00c. {848f,2fc4,0fef511f,59a3d171} jffs2: Node at 0x0000000c with length 0x00001044 would run over the end of the erase block jffs2: Perhaps the file system was created with the wrong erase size? jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000010: 0x1044 instead This breaks the filesystem and can lead to KASAN crashes such as: BUG: KASAN: slab-out-of-bounds in jffs2_sum_add_kvec+0x125e/0x15d0 Read of size 4 at addr ffff88802c31e914 by task repro/830 CPU: 0 PID: 830 Comm: repro Not tainted 6.9.0-rc3+ #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0xc6/0x120 print_report+0xc4/0x620 ? __virt_addr_valid+0x308/0x5b0 kasan_report+0xc1/0xf0 ? jffs2_sum_add_kvec+0x125e/0x15d0 ? • https://git.kernel.org/stable/c/aa98d7cf59b5b0764d3502662053489585faf2fe https://git.kernel.org/stable/c/2904e1d9b64f72d291095e3cbb31634f08788b11 https://git.kernel.org/stable/c/526235dffcac74c7823ed504dfac4f88d84ba5df https://git.kernel.org/stable/c/f0eea095ce8c959b86e1e57fe36ca4fea5ae54f8 https://git.kernel.org/stable/c/a1d21bcd78cf4a4353e1e835789429c6b76aca8b https://git.kernel.org/stable/c/f06969df2e40ab1dc8f4364a5de967830c74a098 https://git.kernel.org/stable/c/af82d8d2179b7277ad627c39e7e0778f1c86ccdb https://git.kernel.org/stable/c/8d431391320c5c5398ff966fb3a95e68a •
CVSS: -EPSS: 0%CPEs: 7EXPL: 0CVE-2024-38597 – eth: sungem: remove .ndo_poll_controller to avoid deadlocks
https://notcve.org/view.php?id=CVE-2024-38597
In the Linux kernel, the following vulnerability has been resolved: eth: sungem: remove .ndo_poll_controller to avoid deadlocks Erhard reports netpoll warnings from sungem: netpoll_send_skb_on_dev(): eth0 enabled interrupts in poll (gem_start_xmit+0x0/0x398) WARNING: CPU: 1 PID: 1 at net/core/netpoll.c:370 netpoll_send_skb+0x1fc/0x20c gem_poll_controller() disables interrupts, which may sleep. We can't sleep in netpoll, it has interrupts disabled completely. Strangely, gem_poll_controller() doesn't even poll the completions, and instead acts as if an interrupt has fired so it just schedules NAPI and exits. None of this has been necessary for years, since netpoll invokes NAPI directly. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: eth: sungem: elimine .ndo_poll_controller para evitar interbloqueos Erhard informa advertencias de netpoll desde sungem: netpoll_send_skb_on_dev(): eth0 habilitó interrupciones en la encuesta (gem_start_xmit+0x0/0x398) ADVERTENCIA: CPU: 1 PID: 1 en net/core/netpoll.c:370 netpoll_send_skb+0x1fc/0x20c gem_poll_controller() desactiva las interrupciones, que pueden dormir. No podemos dormir en netpoll, tiene las interrupciones desactivadas por completo. Curiosamente, gem_poll_controller() ni siquiera sondea las finalizaciones y, en cambio, actúa como si se hubiera disparado una interrupción, por lo que simplemente programa NAPI y sale. • https://git.kernel.org/stable/c/fe09bb619096a0aa139210748ddc668c2dbe2308 https://git.kernel.org/stable/c/e22b23f5888a065d084e87db1eec639c445e677f https://git.kernel.org/stable/c/fbeeb55dbb33d562149c57e794f06b7414e44289 https://git.kernel.org/stable/c/476adb3bbbd7886e8251d3b9ce2d3c3e680f35d6 https://git.kernel.org/stable/c/5de5aeb98f9a000adb0db184e32765e4815d860b https://git.kernel.org/stable/c/faf94f1eb8a34b2c31b2042051ef36f63420ecce https://git.kernel.org/stable/c/6400d205fbbcbcf9b8510157e1f379c1d7e2e937 https://git.kernel.org/stable/c/ac0a230f719b02432d8c7eba7615ebd69 •