0.0
NA
CVE-2021-47340
"JFS Linux Kernel Inconsistent Memory Access Vulnerability"
Description

In the Linux kernel, the following vulnerability has been resolved: jfs: fix GPF in diFree Avoid passing inode with JFS_SBI(inode->i_sb)->ipimap == NULL to diFree()[1]. GFP will appear: struct inode *ipimap = JFS_SBI(ip->i_sb)->ipimap; struct inomap *imap = JFS_IP(ipimap)->i_imap; JFS_IP() will return invalid pointer when ipimap == NULL Call Trace: diFree+0x13d/0x2dc0 fs/jfs/jfs_imap.c:853 [1] jfs_evict_inode+0x2c9/0x370 fs/jfs/inode.c:154 evict+0x2ed/0x750 fs/inode.c:578 iput_final fs/inode.c:1654 [inline] iput.part.0+0x3fe/0x820 fs/inode.c:1680 iput+0x58/0x70 fs/inode.c:1670

INFO

Published Date :

May 21, 2024, 3:15 p.m.

Last Modified :

May 21, 2024, 4:54 p.m.

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Remotely Exploitable :

No

Impact Score :

Exploitability Score :

Affected Products

The following products are affected by CVE-2021-47340 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-47340.

URL Resource
https://git.kernel.org/stable/c/3bb27e27240289b47d3466f647a55c567adbdc3a
https://git.kernel.org/stable/c/42f102ea1943ecb10a0756bf75424de5d1d5beed
https://git.kernel.org/stable/c/49def1b0644892e3b113673c13d650c3060b43bc
https://git.kernel.org/stable/c/745c9a59422c63f661f4374ed5181740db4130a1
https://git.kernel.org/stable/c/7bde24bde490f3139eee147efc6d60d6040fe975
https://git.kernel.org/stable/c/8018936950360f1c503bb385e158cfc5e4945d18
https://git.kernel.org/stable/c/9d574f985fe33efd6911f4d752de6f485a1ea732
https://git.kernel.org/stable/c/a21e5cb1a64c904f1f0ef7b2d386fc7d2b1d2ce2
https://git.kernel.org/stable/c/aff8d95b69051d0cf4acc3d91f22299fdbb9dfb3

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-47340 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-47340 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 28, 2024

    Action Type Old Value New Value
  • CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 21, 2024

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: jfs: fix GPF in diFree Avoid passing inode with JFS_SBI(inode->i_sb)->ipimap == NULL to diFree()[1]. GFP will appear: struct inode *ipimap = JFS_SBI(ip->i_sb)->ipimap; struct inomap *imap = JFS_IP(ipimap)->i_imap; JFS_IP() will return invalid pointer when ipimap == NULL Call Trace: diFree+0x13d/0x2dc0 fs/jfs/jfs_imap.c:853 [1] jfs_evict_inode+0x2c9/0x370 fs/jfs/inode.c:154 evict+0x2ed/0x750 fs/inode.c:578 iput_final fs/inode.c:1654 [inline] iput.part.0+0x3fe/0x820 fs/inode.c:1680 iput+0x58/0x70 fs/inode.c:1670
    Added Reference kernel.org https://git.kernel.org/stable/c/7bde24bde490f3139eee147efc6d60d6040fe975 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/745c9a59422c63f661f4374ed5181740db4130a1 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/49def1b0644892e3b113673c13d650c3060b43bc [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/aff8d95b69051d0cf4acc3d91f22299fdbb9dfb3 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/a21e5cb1a64c904f1f0ef7b2d386fc7d2b1d2ce2 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/8018936950360f1c503bb385e158cfc5e4945d18 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/3bb27e27240289b47d3466f647a55c567adbdc3a [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/42f102ea1943ecb10a0756bf75424de5d1d5beed [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/9d574f985fe33efd6911f4d752de6f485a1ea732 [No types assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-47340 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-47340 weaknesses.

NONE - Vulnerability Scoring System
: