CVE-2021-47119

CVE-2021-47119 (Linux kernel/ext4) involves a memory leak in ext4_fill_super where buffer head references (and the page referenced by b_data) are not freed by kill_bdev. The issue arises when block sizes differ: sb_set_blocksize() kills current buffers/page cache via kill_bdev and then rereads th...

CVE-2021-47119 ext4: fix memory leak in ext4_fill_super

In the Linux kernel, the following vulnerability has been resolved: ext4: fix memory leak in ext4fillsuper Buffer head references must be released before calling killbdev; otherwise the buffer head and its page referenced by bdata will not be freed by killbdev, and subsequently that bh will be...

CVE-2021-47117

Technical details about CVE-2021-47117 are not provided in the connected documents. The initial description mentions ext4/extents_status and a kernel patch, but no explicit vendor/product/version mappings or remediation specifics are given in the supplied sources.

CVE-2021-47117 ext4: fix bug on in ext4_es_cache_extent as ext4_split_extent_at failed

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bug on in ext4escacheextent as ext4splitextentat failed We got follow bugon when run fsstress with injecting IO fault: 130747.323114 kernel BUG at fs/ext4/extentsstatus.c:762! 130747.323117 Internal error: Oops - BUG: 0...

CVE-2021-47117 ext4: fix bug on in ext4_es_cache_extent as ext4_split_extent_at failed

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bug on in ext4escacheextent as ext4splitextentat failed We got follow bugon when run fsstress with injecting IO fault: 130747.323114 kernel BUG at fs/ext4/extentsstatus.c:762! 130747.323117 Internal error: Oops - BUG: 0...

CVE-2021-47117

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bug on in ext4escacheextent as ext4splitextentat failed We got follow bugon when run fsstress with injecting IO fault: 130747.323114 kernel BUG at fs/ext4/extentsstatus.c:762! 130747.323117 Internal error: Oops - BUG: 0...

CVE-2021-47116

CVE-2021-47116 concerns the Linux kernel ext4 memory leak. According to the primary description, the vulnerability is triggered when memory leaks on the error path of ext4_mb_init_backend, occurring if a filesystem is corrupted with an illegally large s_log_groups_per_flex. The issue is resolved ...

CVE-2021-47116 ext4: fix memory leak in ext4_mb_init_backend on error path.

In the Linux kernel, the following vulnerability has been resolved: ext4: fix memory leak in ext4mbinitbackend on error path. Fix a memory leak discovered by syzbot when a file system is corrupted with an illegally large sloggroupsperflex...

CVE-2021-47116 ext4: fix memory leak in ext4_mb_init_backend on error path.

In the Linux kernel, the following vulnerability has been resolved: ext4: fix memory leak in ext4mbinitbackend on error path. Fix a memory leak discovered by syzbot when a file system is corrupted with an illegally large sloggroupsperflex...

Linux kernel security vulnerabilities

The Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. A security vulnerability exists in the Linux kernel due to a memory leak in the ext4mbinitbackend method of the ext4 module...

Linux kernel security vulnerabilities

The Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. A security vulnerability exists in the Linux kernel due to a memory leak in the ext4fillsuper method of the ext4 module...

Linux kernel security vulnerabilities

The Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. A security vulnerability exists in the Linux kernel that stems from an error in the ext4escacheextent method of the ext4 module...

Moderate: Red Hat Security Advisory: kernel security, bug fix, and enhancement update

An update for kernel is now available for Red Hat Enterprise Linux 9.2 Extended Update Support. 'Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

USN-6688-1: Linux kernel (OEM) vulnerabilities

Pratyush Yadav discovered that the Xen network backend implementation in the Linux kernel did not properly handle zero length data request, leading to a null pointer dereference vulnerability. An attacker in a guest VM could possibly use this to cause a denial of service host domain crash...

CVE-2024-26616

In the Linux kernel, the following vulnerability has been resolved: btrfs: scrub: avoid use-after-free when chunk length is not 64K aligned BUG There is a bug report that, on a ext4-converted btrfs, scrub leads to various problems, including: - "unable to find chunk map" errors BTRFS info device...

Linux kernel security vulnerability

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel, which stems from the fact that scrub causes an irreparable failure when ext4 is converted to btrfs...

The vulnerability of the ext4_mbgenerate_buddy() function in the fs/ext4/mballoc.c file of the Linux kernel’s file system ext4 allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the ext4 file system kernel in Linux operating systems is related to the use of memory after it is freed due to competitive access to resources race condition. Exploiting this vulnerability can allow an attacker to compromise the confidentiality, integrity, and accessibility ...

CVE-2024-26616 btrfs: scrub: avoid use-after-free when chunk length is not 64K aligned

In the Linux kernel, the following vulnerability has been resolved: btrfs: scrub: avoid use-after-free when chunk length is not 64K aligned BUG There is a bug report that, on a ext4-converted btrfs, scrub leads to various problems, including: - "unable to find chunk map" errors BTRFS info device...

CVE-2024-26616

In the Linux kernel, the following vulnerability has been resolved: btrfs: scrub: avoid use-after-free when chunk length is not 64K aligned BUG There is a bug report that, on a ext4-converted btrfs, scrub leads to various problems, including: - "unable to find chunk map" errors BTRFS info device...

SUSE CVE-2021-46945

In the Linux kernel, the following vulnerability has been resolved: ext4: always panic when errors=panic is specified Before commit 014c9caa29d3 "ext4: make ext4abort use ext4error", the following series of commands would trigger a panic: 1. mount /dev/sda -o ro,errors=panic test 2. mount /dev/sd...