CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2024-49996 – cifs: Fix buffer overflow when parsing NFS reparse points
https://notcve.org/view.php?id=CVE-2024-49996
In the Linux kernel, the following vulnerability has been resolved: cifs: Fix buffer overflow when parsing NFS reparse points ReparseDataLength is sum of the InodeType size and DataBuffer size. So to get DataBuffer size it is needed to subtract InodeType's size from ReparseDataLength. Function cifs_strndup_from_utf16() is currentlly accessing buf->DataBuffer at position after the end of the buffer because it does not subtract InodeType size from the length. Fix this problem and correctly subtract variable len. Member InodeType is present only when reparse buffer is large enough. Check for ReparseDataLength before accessing InodeType to prevent another invalid memory access. Major and minor rdev values are present also only when reparse buffer is large enough. Check for reparse buffer size before calling reparse_mkdev(). • https://git.kernel.org/stable/c/d5ecebc4900df7f6e8dff0717574668885110553 https://git.kernel.org/stable/c/c6db81c550cea0c73bd72ef55f579991e0e4ba07 https://git.kernel.org/stable/c/803b3a39cb096d8718c0aebc03fd19f11c7dc919 https://git.kernel.org/stable/c/c173d47b69f07cd7ca08efb4e458adbd4725d8e9 https://git.kernel.org/stable/c/e2a8910af01653c1c268984855629d71fb81f404 •
CVSS: -EPSS: 0%CPEs: 7EXPL: 0CVE-2024-49995 – tipc: guard against string buffer overrun
https://notcve.org/view.php?id=CVE-2024-49995
In the Linux kernel, the following vulnerability has been resolved: tipc: guard against string buffer overrun Smatch reports that copying media_name and if_name to name_parts may overwrite the destination. .../bearer.c:166 bearer_name_validate() error: strcpy() 'media_name' too large for 'name_parts->media_name' (32 vs 16) .../bearer.c:167 bearer_name_validate() error: strcpy() 'if_name' too large for 'name_parts->if_name' (1010102 vs 16) This does seem to be the case so guard against this possibility by using strscpy() and failing if truncation occurs. Introduced by commit b97bf3fd8f6a ("[TIPC] Initial merge") Compile tested only. • https://git.kernel.org/stable/c/e2b2558971e02ca33eb637a8350d68a48b3e8e46 https://git.kernel.org/stable/c/54dae0e9063ed23c9acf8d5ab9b18d3426a8ac18 https://git.kernel.org/stable/c/80c0be7bcf940ce9308311575c3aff8983c9b97a https://git.kernel.org/stable/c/12d26aa7fd3cbdbc5149b6e516563478d575026e https://git.kernel.org/stable/c/2ed7f42dfd3edb387034128ca5b0f639836d4ddd https://git.kernel.org/stable/c/a18c7b239d02aafb791ae2c45226f6bb40641792 https://git.kernel.org/stable/c/6555a2a9212be6983d2319d65276484f7c5f431a •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2024-49994 – block: fix integer overflow in BLKSECDISCARD
https://notcve.org/view.php?id=CVE-2024-49994
In the Linux kernel, the following vulnerability has been resolved: block: fix integer overflow in BLKSECDISCARD I independently rediscovered commit 22d24a544b0d49bbcbd61c8c0eaf77d3c9297155 block: fix overflow in blk_ioctl_discard() but for secure erase. Same problem: uint64_t r[2] = {512, 18446744073709551104ULL}; ioctl(fd, BLKSECDISCARD, r); will enter near infinite loop inside blkdev_issue_secure_erase(): a.out: attempt to access beyond end of device loop0: rw=5, sector=3399043073, nr_sectors = 1024 limit=2048 bio_check_eod: 3286214 callbacks suppressed • https://git.kernel.org/stable/c/0842ddd83939eb4db940b9af7d39e79722bc41aa https://git.kernel.org/stable/c/6c9915fa9410cbb9bd75ee283c03120046c56d3d https://git.kernel.org/stable/c/697ba0b6ec4ae04afb67d3911799b5e2043b4455 •
CVSS: -EPSS: 0%CPEs: 7EXPL: 0CVE-2024-49993 – iommu/vt-d: Fix potential lockup if qi_submit_sync called with 0 count
https://notcve.org/view.php?id=CVE-2024-49993
In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix potential lockup if qi_submit_sync called with 0 count If qi_submit_sync() is invoked with 0 invalidation descriptors (for instance, for DMA draining purposes), we can run into a bug where a submitting thread fails to detect the completion of invalidation_wait. Subsequently, this led to a soft lockup. Currently, there is no impact by this bug on the existing users because no callers are submitting invalidations with 0 descriptors. This fix will enable future users (such as DMA drain) calling qi_submit_sync() with 0 count. Suppose thread T1 invokes qi_submit_sync() with non-zero descriptors, while concurrently, thread T2 calls qi_submit_sync() with zero descriptors. Both threads then enter a while loop, waiting for their respective descriptors to complete. T1 detects its completion (i.e., T1's invalidation_wait status changes to QI_DONE by HW) and proceeds to call reclaim_free_desc() to reclaim all descriptors, potentially including adjacent ones of other threads that are also marked as QI_DONE. During this time, while T2 is waiting to acquire the qi->q_lock, the IOMMU hardware may complete the invalidation for T2, setting its status to QI_DONE. • https://git.kernel.org/stable/c/de9e7f68762585f7532de8a06de9485bf39dbd38 https://git.kernel.org/stable/c/8840dc73ac9e1028291458ef1429ec3c2524ffec https://git.kernel.org/stable/c/e03f00aa4a6c0c49c17857a4048f586636abdc32 https://git.kernel.org/stable/c/dfdbc5ba10fb792c9d6d12ba8cb6e465f97365ed https://git.kernel.org/stable/c/07e4e92f84b7d3018b7064ef8d8438aeb54a2ca5 https://git.kernel.org/stable/c/92ba5b014d5435dd7a1ee02a2c7f2a0e8fe06c36 https://git.kernel.org/stable/c/3cf74230c139f208b7fb313ae0054386eee31a81 •
CVSS: -EPSS: 0%CPEs: 5EXPL: 0CVE-2024-49992 – drm/stm: Avoid use-after-free issues with crtc and plane
https://notcve.org/view.php?id=CVE-2024-49992
In the Linux kernel, the following vulnerability has been resolved: drm/stm: Avoid use-after-free issues with crtc and plane ltdc_load() calls functions drm_crtc_init_with_planes(), drm_universal_plane_init() and drm_encoder_init(). These functions should not be called with parameters allocated with devm_kzalloc() to avoid use-after-free issues [1]. Use allocations managed by the DRM framework. Found by Linux Verification Center (linuxtesting.org). [1] https://lore.kernel.org/lkml/u366i76e3qhh3ra5oxrtngjtm2u5lterkekcz6y2jkndhuxzli@diujon4h7qwb/ • https://git.kernel.org/stable/c/d02611ff001454358be6910cb926799e2d818716 https://git.kernel.org/stable/c/0a1741d10da29aa84955ef89ae9a03c4b6038657 https://git.kernel.org/stable/c/454e5d7e671946698af0f201e48469e5ddb42851 https://git.kernel.org/stable/c/b22eec4b57d04befa90e8554ede34e6c67257606 https://git.kernel.org/stable/c/19dd9780b7ac673be95bf6fd6892a184c9db611f •