Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Do not hold the nilock lock when calling truncatesetsize. syzbot reports a hung task during the call to douseraddrfault 1. This occurs because there is a silent deadlock between the PGlocked bit and the nilock lock. Sin...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Validate data run offset This adds sanity checks for the data run offset. We should ensure that the data run offset is valid before attempting to unpack the data; otherwise, we may encounter use-after-free errors or...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Added a check for kmemdup. Since kmemdup may return a NULL pointer, it would be better to add a check on the return value to avoid dereferencing a NULL pointer...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: fs/ntfs3: Fixed a NULL pointer dereference in ‘niwrite inode’. Syzbot identified the following issue: Unable to handle a NULL pointer dereference at the virtual address 0000000000000016. Memory abort information: ESR =...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel 6.0.8, there is a use-after-free in the rununpack function in fs/ntfs3/run.c, which is related to a difference between the NTFS sector size and the media sector size...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: fs/ntfs3: Fixed a memory leak that occurred when ntfsreadmft failed. When the label ATTRROOT in ntfsreadmft sets isroot = true and ni-niFlags |= NIFLAGDIR, the next attribute will go to the label ATTRALLOC, resulting in an...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fixed a slab-out-of-bounds read in hdrdeletede. Here is a bug report from syzbot: Bug: KASAN: Slab-out-of-bounds in hdrdeletede+0xe0/0x150, fs/ntfs3/index.c:806. A read of size 16842960 was performed at address...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: A NULL dereference in niwriteinode has been fixed. Syzbot reported a NULL dereference in niwrite inode. When creating a new inode, if the allocation fails in the miinit function called in the miformatnew function, mi-mr...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel before version 6.1.3, fs/ntfs3/inode.c does not validate the attribute name offset. A unhandled page fault may occur...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel 6.0.8, there is a use-after-free in ntfstrimfs in fs/ntfs3/bitmap.c...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: fs/ntfs3: Added a length check in indxgetroot This addition ensures that the retrieved index root is valid. 162.459513 BUG: KASAN: Use-after-free in hdrfinde.isra.0+0x10c/0x320 162.460176 Read of size 2 at addr ffff8880037bca9...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: fs/ntfs3: Enhanced sanity check during attribute list generation The nicreateattrlist function uses WARNON to catch error cases during attribute list generation. Currently, it only prints the stack trace, which may not be...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel up to version 6.2.7, fs/ntfs3/inode.c contains an invalid kfree function because it does not validate the MFT flags before replaying logs...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: fs/ntfs3: Validates buffer length during parsing of indexes. The indxread function is called when performing NTFS directory operations that require more information from the index buffers. This adds a sanity check to ensure th...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fixed an OOB read issue in indxinsertintobuffer. Syzbot reported a OOB read bug: BUG: KASAN: A slab-out-of-bounds condition occurs in indxinsertintobuffer+0xaa3/0x13b0. Location: fs/ntfs3/index.c:1755 A read of size 171...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: fs/ntfs3: Added a null pointer check for inode operations This adds a sanity check for the iop pointer of the inode, which is returned after reading the Root directory MFT record. We should check that the iop is valid before...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: fs/ntfs3: Enhanced the attribute size check This combines the overflow and boundary check so that all attribute sizes will be properly examined during enumeration. 169.181521 BUG: KASAN: Out-of-bounds access in...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: A possible null pointer dereference has been fixed in niclear. In a previous commit c1006bd13146, ni-mi.mrec in niwrite inode could be NULL. Therefore, a NULL check was added for this variable. However, in the same call...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ntfs3: init run lock for extend inode After setting the inode mode of $Extend to a regular file, executing the truncate system call will invoke the dotruncate routine, resulting in an uninitialized runlock error reported by syzbo...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: This issue prevents UBSAN errors occurring in truesectorsperclst. The syzbot reported the following UBSAN error: 76.901829 T6677 ================================================================================ 76.903908...