CVSS: -EPSS: 0%CPEs: 5EXPL: 0CVE-2024-49859 – f2fs: fix to check atomic_file in f2fs ioctl interfaces
https://notcve.org/view.php?id=CVE-2024-49859
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to check atomic_file in f2fs ioctl interfaces Some f2fs ioctl interfaces like f2fs_ioc_set_pin_file(), f2fs_move_file_range(), and f2fs_defragment_range() missed to check atomic_write status, which may cause potential race issue, fix it. • https://git.kernel.org/stable/c/26b07bd2e1f124b0e430c8d250023f7205c549c3 https://git.kernel.org/stable/c/7cb51731f24b216b0b87942f519f2c67a17107ee https://git.kernel.org/stable/c/10569b682ebe9c75ef06ddd322ae844e9be6374b https://git.kernel.org/stable/c/d6f08c88047accc6127dddb6798a3ff11321539d https://git.kernel.org/stable/c/bfe5c02654261bfb8bd9cb174a67f3279ea99e58 •
CVSS: -EPSS: 0%CPEs: 7EXPL: 0CVE-2024-49858 – efistub/tpm: Use ACPI reclaim memory for event log to avoid corruption
https://notcve.org/view.php?id=CVE-2024-49858
In the Linux kernel, the following vulnerability has been resolved: efistub/tpm: Use ACPI reclaim memory for event log to avoid corruption The TPM event log table is a Linux specific construct, where the data produced by the GetEventLog() boot service is cached in memory, and passed on to the OS using an EFI configuration table. The use of EFI_LOADER_DATA here results in the region being left unreserved in the E820 memory map constructed by the EFI stub, and this is the memory description that is passed on to the incoming kernel by kexec, which is therefore unaware that the region should be reserved. Even though the utility of the TPM2 event log after a kexec is questionable, any corruption might send the parsing code off into the weeds and crash the kernel. So let's use EFI_ACPI_RECLAIM_MEMORY instead, which is always treated as reserved by the E820 conversion logic. • https://git.kernel.org/stable/c/f76b69ab9cf04358266e3cea5748c0c2791fbb08 https://git.kernel.org/stable/c/11690d7e76842f29b60fbb5b35bc97d206ea0e83 https://git.kernel.org/stable/c/5b22c038fb2757c652642933de5664da471f8cb7 https://git.kernel.org/stable/c/19fd2f2c5fb36b61506d3208474bfd8fdf1cada3 https://git.kernel.org/stable/c/38d9b07d99b789efb6d8dda21f1aaad636c38993 https://git.kernel.org/stable/c/2e6871a632a99d9b9e2ce3a7847acabe99e5a26e https://git.kernel.org/stable/c/77d48d39e99170b528e4f2e9fc5d1d64cdedd386 •
CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2024-47745 – mm: call the security_mmap_file() LSM hook in remap_file_pages()
https://notcve.org/view.php?id=CVE-2024-47745
In the Linux kernel, the following vulnerability has been resolved: mm: call the security_mmap_file() LSM hook in remap_file_pages() The remap_file_pages syscall handler calls do_mmap() directly, which doesn't contain the LSM security check. And if the process has called personality(READ_IMPLIES_EXEC) before and remap_file_pages() is called for RW pages, this will actually result in remapping the pages to RWX, bypassing a W^X policy enforced by SELinux. So we should check prot by security_mmap_file LSM hook in the remap_file_pages syscall handler before do_mmap() is called. Otherwise, it potentially permits an attacker to bypass a W^X policy enforced by SELinux. The bypass is similar to CVE-2016-10044, which bypass the same thing via AIO and can be found in [1]. The PoC: $ cat > test.c int main(void) { size_t pagesz = sysconf(_SC_PAGE_SIZE); int mfd = syscall(SYS_memfd_create, "test", 0); const char *buf = mmap(NULL, 4 * pagesz, PROT_READ | PROT_WRITE, MAP_SHARED, mfd, 0); unsigned int old = syscall(SYS_personality, 0xffffffff); syscall(SYS_personality, READ_IMPLIES_EXEC | old); syscall(SYS_remap_file_pages, buf, pagesz, 0, 2, 0); syscall(SYS_personality, old); // show the RWX page exists even if W^X policy is enforced int fd = open("/proc/self/maps", O_RDONLY); unsigned char buf2[1024]; while (1) { int ret = read(fd, buf2, 1024); if (ret <= 0) break; write(1, buf2, ret); } close(fd); } $ gcc test.c -o test $ ./test | grep rwx 7f1836c34000-7f1836c35000 rwxs 00002000 00:01 2050 /memfd:test (deleted) [PM: subject line tweaks] • https://git.kernel.org/stable/c/49d3a4ad57c57227c3b0fd6cd4188b2a5ebd6178 https://git.kernel.org/stable/c/3393fddbfa947c8e1fdcc4509226905ffffd8b89 https://git.kernel.org/stable/c/ce14f38d6ee9e88e37ec28427b4b93a7c33c70d3 https://git.kernel.org/stable/c/ea7e2d5e49c05e5db1922387b09ca74aa40f46e2 •
CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2024-47726 – f2fs: fix to wait dio completion
https://notcve.org/view.php?id=CVE-2024-47726
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to wait dio completion It should wait all existing dio write IOs before block removal, otherwise, previous direct write IO may overwrite data in the block which may be reused by other inode. • https://git.kernel.org/stable/c/e3db757ff9b7101ae68650ac5f6dd5743b68164e https://git.kernel.org/stable/c/96cfeb0389530ae32ade8a48ae3ae1ac3b6c009d •
CVSS: -EPSS: 0%CPEs: 7EXPL: 0CVE-2024-47723 – jfs: fix out-of-bounds in dbNextAG() and diAlloc()
https://notcve.org/view.php?id=CVE-2024-47723
In the Linux kernel, the following vulnerability has been resolved: jfs: fix out-of-bounds in dbNextAG() and diAlloc() In dbNextAG() , there is no check for the case where bmp->db_numag is greater or same than MAXAG due to a polluted image, which causes an out-of-bounds. Therefore, a bounds check should be added in dbMount(). And in dbNextAG(), a check for the case where agpref is greater than bmp->db_numag should be added, so an out-of-bounds exception should be prevented. Additionally, a check for the case where agno is greater or same than MAXAG should be added in diAlloc() to prevent out-of-bounds. • https://git.kernel.org/stable/c/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 https://git.kernel.org/stable/c/0338e66cba272351ca9d7d03f3628e390e70963b https://git.kernel.org/stable/c/ead82533278502428883085a787d5a00f15e5eb9 https://git.kernel.org/stable/c/6ce8b6ab44a8b5918c0ee373d4ad19d19017931b https://git.kernel.org/stable/c/c1ba4b8ca799ff1d99d01f37d7ccb7d5ba5533d2 https://git.kernel.org/stable/c/128d5cfdcf844cb690c9295a3a1c1114c21fc15a https://git.kernel.org/stable/c/96855f40e152989c9e7c20c4691ace5581098acc https://git.kernel.org/stable/c/e63866a475562810500ea7f784099bfe3 •