CVE-2023-53485

CVE-2023-53485 affects the Linux kernel JFS code path. The UBSAN out-of-bounds access in fs/jfs/jfs_dmap.c:1965 was triggered when dbAllocDmapLev accessed dp->tree.stree[leafidx + LEAFIND] with a negative leafidx. The patch adds a guard in dbAllocDmapLev to return an I/O error if leafidx is ne...

CVE-2023-53485 fs: jfs: Fix UBSAN: array-index-out-of-bounds in dbAllocDmapLev

In the Linux kernel, the following vulnerability has been resolved: fs: jfs: Fix UBSAN: array-index-out-of-bounds in dbAllocDmapLev Syzkaller reported the following issue: UBSAN: array-index-out-of-bounds in fs/jfs/jfsdmap.c:1965:6 index -84 is out of range for type 's8341' aka 'signed char341'...

CVE-2023-53485 fs: jfs: Fix UBSAN: array-index-out-of-bounds in dbAllocDmapLev

In the Linux kernel, the following vulnerability has been resolved: fs: jfs: Fix UBSAN: array-index-out-of-bounds in dbAllocDmapLev Syzkaller reported the following issue: UBSAN: array-index-out-of-bounds in fs/jfs/jfsdmap.c:1965:6 index -84 is out of range for type 's8341' aka 'signed char341'...

CVE-2023-53457 FS: JFS: Fix null-ptr-deref Read in txBegin

In the Linux kernel, the following vulnerability has been resolved: FS: JFS: Fix null-ptr-deref Read in txBegin Syzkaller reported an issue where txBegin may be called on a superblock in a read-only mounted filesystem which leads to NULL pointer deref. This could be solved by checking if the...

CVE-2023-53457 FS: JFS: Fix null-ptr-deref Read in txBegin

In the Linux kernel, the following vulnerability has been resolved: FS: JFS: Fix null-ptr-deref Read in txBegin Syzkaller reported an issue where txBegin may be called on a superblock in a read-only mounted filesystem which leads to NULL pointer deref. This could be solved by checking if the...

USN-7775-3 linux-azure-5.15 vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - PowerPC architecture; - x86 architecture; - ACPI drivers; - Serial ATA and Parallel ATA...

CVE-2023-53485: Improper Validation of Array Index

In the Linux kernel, the following vulnerability has been resolved: fs: jfs: Fix UBSAN: array-index-out-of-bounds in dbAllocDmapLev Syzkaller reported the following issue: UBSAN: array-index-out-of-bounds in fs/jfs/jfsdmap.c:1965:6 index -84 is out of range for type 's8341' aka 'signed char341'...

CVE-2023-53457: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: FS: JFS: Fix null-ptr-deref Read in txBegin Syzkaller reported an issue where txBegin may be called on a superblock in a read-only mounted filesystem which leads to NULL pointer deref. This could be solved by checking if the...

The vulnerability of the jfs component in the Linux operating system’s kernel allows a hacker to trigger a service failure.

The vulnerability of the jfs component in the Linux operating system’s kernel is related to the lack of checks for division by zero. Exploiting this vulnerability can allow an attacker to cause a service failure...

The vulnerability of the ea_get() function in the fs/jfs/xattr.c component of the Linux kernel allows a hacker to gain access to confidential data and also trigger a service denial.

The vulnerability of the eaget function in the fs/jfs/xattr.c component of the Linux kernel involves reading data from beyond the allowable buffer size. Exploiting this vulnerability can allow an attacker to access confidential data and also cause service failures...

USN-7775-2 linux-azure vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - PowerPC architecture; - x86 architecture; - ACPI drivers; - Serial ATA and Parallel ATA...

Ubuntu 22.04 LTS : Linux kernel (Azure FIPS) vulnerabilities (USN-7775-1)

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7775-1 advisory. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in...

USN-7776-1 linux-oracle-5.15 vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - PowerPC architecture; - x86 architecture; - ACPI drivers; - Serial ATA and Parallel ATA...

SUSE CVE-2023-53222

In the Linux kernel, the following vulnerability has been resolved: jfs: jfsdmap: Validate dbl2nbperpage while mounting In jfsdmap.c at line 381, BLKTODMAP is used to get a logical block number inside dbFree. dbl2nbperpage, which is the log2 number of blocks per page, is passed as an argument to...

PT-2025-51581

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel's JFS Journaled File System transaction manager. The txInit function does not properly initialize the TxBlock0.waitor waitqueue, leading to a system cra...

Linux Distros Unpatched Vulnerability : CVE-2022-50333

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - fs: jfs: fix shift-out-of-bounds in dbDiscardAG This should be applied to most URSAN bugs found recently by syzbot, by guarding the dbMount. As syzbot feeding...

Linux Distros Unpatched Vulnerability : CVE-2023-53222

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - jfs: jfsdmap: Validate dbl2nbperpage while mounting In jfsdmap.c at line 381, BLKTODMAP is used to get a logical block number inside dbFree. dbl2nbperpage, whic...

DEBIAN-CVE-2023-53222

In the Linux kernel, the following vulnerability has been resolved: jfs: jfsdmap: Validate dbl2nbperpage while mounting In jfsdmap.c at line 381, BLKTODMAP is used to get a logical block number inside dbFree. dbl2nbperpage, which is the log2 number of blocks per page, is passed as an argument to...

CVE-2022-50333

In the Linux kernel, the following vulnerability has been resolved: fs: jfs: fix shift-out-of-bounds in dbDiscardAG This should be applied to most URSAN bugs found recently by syzbot, by guarding the dbMount. As syzbot feeding rubbish into the bmap descriptor...

UBUNTU-CVE-2022-50333

In the Linux kernel, the following vulnerability has been resolved: fs: jfs: fix shift-out-of-bounds in dbDiscardAG This should be applied to most URSAN bugs found recently by syzbot, by guarding the dbMount. As syzbot feeding rubbish into the bmap descriptor...