CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2024-44955 – drm/amd/display: Don't refer to dc_sink in is_dsc_need_re_compute
https://notcve.org/view.php?id=CVE-2024-44955
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Don't refer to dc_sink in is_dsc_need_re_compute [Why] When unplug one of monitors connected after mst hub, encounter null pointer dereference. It's due to dc_sink get released immediately in early_unregister() or detect_ctx(). When commit new state which directly referring to info stored in dc_sink will cause null pointer dereference. [how] Remove redundant checking condition. Relevant condition should already be covered by checking if dsc_aux is null or not. Also reset dsc_aux to NULL when the connector is disconnected. • https://git.kernel.org/stable/c/39b217193729aa45eded8de24d9245468a0c0263 https://git.kernel.org/stable/c/fcf6a49d79923a234844b8efe830a61f3f0584e4 •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-44954 – ALSA: line6: Fix racy access to midibuf
https://notcve.org/view.php?id=CVE-2024-44954
In the Linux kernel, the following vulnerability has been resolved: ALSA: line6: Fix racy access to midibuf There can be concurrent accesses to line6 midibuf from both the URB completion callback and the rawmidi API access. This could be a cause of KMSAN warning triggered by syzkaller below (so put as reported-by here). This patch protects the midibuf call of the former code path with a spinlock for avoiding the possible races. • https://git.kernel.org/stable/c/643293b68fbb6c03f5e907736498da17d43f0d81 https://git.kernel.org/stable/c/40f3d5cb0e0cbf7fa697913a27d5d361373bdcf5 https://git.kernel.org/stable/c/e7e7d2b180d8f297cea6db43ea72402fd33e1a29 https://git.kernel.org/stable/c/a54da4b787dcac60b598da69c9c0072812b8282d https://git.kernel.org/stable/c/c80f454a805443c274394b1db0d1ebf477abd94e https://git.kernel.org/stable/c/535df7f896a568a8a1564114eaea49d002cb1747 https://git.kernel.org/stable/c/51d87f11dd199bbc6a85982b088ff27bde53b48a https://git.kernel.org/stable/c/15b7a03205b31bc5623378c190d22b7ff •
CVSS: -EPSS: 0%CPEs: 5EXPL: 0CVE-2024-44951 – serial: sc16is7xx: fix TX fifo corruption
https://notcve.org/view.php?id=CVE-2024-44951
In the Linux kernel, the following vulnerability has been resolved: serial: sc16is7xx: fix TX fifo corruption Sometimes, when a packet is received on channel A at almost the same time as a packet is about to be transmitted on channel B, we observe with a logic analyzer that the received packet on channel A is transmitted on channel B. In other words, the Tx buffer data on channel B is corrupted with data from channel A. The problem appeared since commit 4409df5866b7 ("serial: sc16is7xx: change EFR lock to operate on each channels"), which changed the EFR locking to operate on each channel instead of chip-wise. This commit has introduced a regression, because the EFR lock is used not only to protect the EFR registers access, but also, in a very obscure and undocumented way, to protect access to the data buffer, which is shared by the Tx and Rx handlers, but also by each channel of the IC. Fix this regression first by switching to kfifo_out_linear_ptr() in sc16is7xx_handle_tx() to eliminate the need for a shared Rx/Tx buffer. Secondly, replace the chip-wise Rx buffer with a separate Rx buffer for each channel. • https://git.kernel.org/stable/c/4409df5866b7ff7686ba27e449ca97a92ee063c9 https://git.kernel.org/stable/c/4b068e55bf5ea7bab4d8a282c6a24b03e80c0b68 https://git.kernel.org/stable/c/9879e1bec3c0f077427dd0d258c80c63ce9babdf https://git.kernel.org/stable/c/dbe196ca489f3833e0f9eeb86ac346194f131c91 https://git.kernel.org/stable/c/09cfe05e9907f3276887a20e267cc40e202f4fdd https://git.kernel.org/stable/c/133f4c00b8b2bfcacead9b81e7e8edfceb4b06c4 •
CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2024-44950 – serial: sc16is7xx: fix invalid FIFO access with special register set
https://notcve.org/view.php?id=CVE-2024-44950
In the Linux kernel, the following vulnerability has been resolved: serial: sc16is7xx: fix invalid FIFO access with special register set When enabling access to the special register set, Receiver time-out and RHR interrupts can happen. In this case, the IRQ handler will try to read from the FIFO thru the RHR register at address 0x00, but address 0x00 is mapped to DLL register, resulting in erroneous FIFO reading. Call graph example: sc16is7xx_startup(): entry sc16is7xx_ms_proc(): entry sc16is7xx_set_termios(): entry sc16is7xx_set_baud(): DLH/DLL = $009C --> access special register set sc16is7xx_port_irq() entry --> IIR is 0x0C sc16is7xx_handle_rx() entry sc16is7xx_fifo_read(): --> unable to access FIFO (RHR) because it is mapped to DLL (LCR=LCR_CONF_MODE_A) sc16is7xx_set_baud(): exit --> Restore access to general register set Fix the problem by claiming the efr_lock mutex when accessing the Special register set. • https://git.kernel.org/stable/c/dfeae619d781dee61666d5551b93ba3be755a86b https://git.kernel.org/stable/c/6a6730812220a9a5ce4003eb347da1ee5abd06b0 https://git.kernel.org/stable/c/7d3b793faaab1305994ce568b59d61927235f57b •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2024-44949 – parisc: fix a possible DMA corruption
https://notcve.org/view.php?id=CVE-2024-44949
In the Linux kernel, the following vulnerability has been resolved: parisc: fix a possible DMA corruption ARCH_DMA_MINALIGN was defined as 16 - this is too small - it may be possible that two unrelated 16-byte allocations share a cache line. If one of these allocations is written using DMA and the other is written using cached write, the value that was written with DMA may be corrupted. This commit changes ARCH_DMA_MINALIGN to be 128 on PA20 and 32 on PA1.1 - that's the largest possible cache line size. As different parisc microarchitectures have different cache line size, we define arch_slab_minalign(), cache_line_size() and dma_get_cache_alignment() so that the kernel may tune slab cache parameters dynamically, based on the detected cache line size. • https://git.kernel.org/stable/c/642a0b7453daff0295310774016fcb56d1f5bc7f https://git.kernel.org/stable/c/533de2f470baac40d3bf622fe631f15231a03c9f https://git.kernel.org/stable/c/7ae04ba36b381bffe2471eff3a93edced843240f •