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 •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-44948 – x86/mtrr: Check if fixed MTRRs exist before saving them
https://notcve.org/view.php?id=CVE-2024-44948
In the Linux kernel, the following vulnerability has been resolved: x86/mtrr: Check if fixed MTRRs exist before saving them MTRRs have an obsolete fixed variant for fine grained caching control of the 640K-1MB region that uses separate MSRs. This fixed variant has a separate capability bit in the MTRR capability MSR. So far all x86 CPUs which support MTRR have this separate bit set, so it went unnoticed that mtrr_save_state() does not check the capability bit before accessing the fixed MTRR MSRs. Though on a CPU that does not support the fixed MTRR capability this results in a #GP. The #GP itself is harmless because the RDMSR fault is handled gracefully, but results in a WARN_ON(). Add the missing capability check to prevent this. • https://git.kernel.org/stable/c/2b1f6278d77c1f2f669346fc2bb48012b5e9495a https://git.kernel.org/stable/c/34f36e6ee5bd7eff8b2adcd9fcaef369f752d82e https://git.kernel.org/stable/c/06c1de44d378ec5439db17bf476507d68589bfe9 https://git.kernel.org/stable/c/450b6b22acdaac67a18eaf5ed498421ffcf10051 https://git.kernel.org/stable/c/ca7d00c5656d1791e28369919e3e10febe9c3b16 https://git.kernel.org/stable/c/8aa79dfb216b865e96ff890bc4ea71650f9bc8d7 https://git.kernel.org/stable/c/8a90d3fc7c24608548d3a750671f9dac21d1a462 https://git.kernel.org/stable/c/388f1c954019f253a8383f7eb733f38d5 •
CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 1CVE-2024-44947 – fuse: Initialize beyond-EOF page contents before setting uptodate
https://notcve.org/view.php?id=CVE-2024-44947
In the Linux kernel, the following vulnerability has been resolved: fuse: Initialize beyond-EOF page contents before setting uptodate fuse_notify_store(), unlike fuse_do_readpage(), does not enable page zeroing (because it can be used to change partial page contents). So fuse_notify_store() must be more careful to fully initialize page contents (including parts of the page that are beyond end-of-file) before marking the page uptodate. The current code can leave beyond-EOF page contents uninitialized, which makes these uninitialized page contents visible to userspace via mmap(). This is an information leak, but only affects systems which do not enable init-on-alloc (via CONFIG_INIT_ON_ALLOC_DEFAULT_ON=y or the corresponding kernel command line parameter). • https://github.com/Abdurahmon3236/CVE-2024-44947 https://git.kernel.org/stable/c/a1d75f258230b75d46aecdf28b2e732413028863 https://git.kernel.org/stable/c/49934861514d36d0995be8e81bb3312a499d8d9a https://git.kernel.org/stable/c/33168db352c7b56ae18aa55c2cae1a1c5905d30e https://git.kernel.org/stable/c/4690e2171f651e2b415e3941ce17f2f7b813aff6 https://git.kernel.org/stable/c/8c78303eafbf85a728dd84d1750e89240c677dd9 https://git.kernel.org/stable/c/831433527773e665bdb635ab5783d0b95d1246f4 https://git.kernel.org/stable/c/ac42e0f0eb66af966015ee33fd355bc6f5d80cd6 https:&#x • CWE-402: Transmission of Private Resources into a New Sphere ('Resource Leak') •
CVSS: -EPSS: 0%CPEs: 13EXPL: 0CVE-2024-44944 – netfilter: ctnetlink: use helper function to calculate expect ID
https://notcve.org/view.php?id=CVE-2024-44944
In the Linux kernel, the following vulnerability has been resolved: netfilter: ctnetlink: use helper function to calculate expect ID Delete expectation path is missing a call to the nf_expect_get_id() helper function to calculate the expectation ID, otherwise LSB of the expectation object address is leaked to userspace. • https://git.kernel.org/stable/c/7b115755fb9d3aff0ddcd18a5c4d83381362acce https://git.kernel.org/stable/c/3c79107631db1f7fd32cf3f7368e4672004a3010 https://git.kernel.org/stable/c/3d8b3d0384f709126beef6b917b7e97c23f18e74 https://git.kernel.org/stable/c/36bbd861a402a8c5bd8f0365a5967d34cc492f09 https://git.kernel.org/stable/c/1922476beeeea46bebbe577215078736dd4231dc https://git.kernel.org/stable/c/f862c13c3c926d3008b2c2bcc746ab813108dfbf https://git.kernel.org/stable/c/b0a90cae081d7ee14eaa46524fb70f4e23ae8905 https://git.kernel.org/stable/c/66e7650dbbb8e236e781c670b167edc81 •