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CVE-2024-26720
Linux Kernel Divide-By-Zero Vulnerability in Writeback Module
Description

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

INFO

Published Date :

April 3, 2024, 3:15 p.m.

Last Modified :

Dec. 19, 2024, 12:15 p.m.

Remotely Exploit :

No

Source :

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

The following products are affected by CVE-2024-26720 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
Solution
Address the kernel vulnerability by updating the affected packages and kernels.
  • Update the affected kernel packages.
  • Update the affected packages.

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-2024-26720 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2024-26720 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

    Dec. 19, 2024

    Action Type Old Value New Value
    Changed Description In the Linux kernel, the following vulnerability has been resolved: mm/writeback: fix possible divide-by-zero in wb_dirty_limits(), again (struct dirty_throttle_control *)->thresh is an unsigned long, but is passed as the u32 divisor argument to div_u64(). On architectures where unsigned long is 64 bytes, the argument will be implicitly truncated. Use div64_u64() instead of div_u64() so that the value used in the "is this a safe division" check is the same as the divisor. Also, remove redundant cast of the numerator to u64, as that should happen implicitly. This would be difficult to exploit in memcg domain, given the ratio-based arithmetic domain_drity_limits() uses, but is much easier in global writeback domain with a BDI_CAP_STRICTLIMIT-backing device, using e.g. vm.dirty_bytes=(1<<32)*PAGE_SIZE so that dtc->thresh == (1<<32) Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
    Removed Reference kernel.org: https://git.kernel.org/stable/c/000099d71648504fb9c7a4616f92c2b70c3e44ec
    Removed Reference kernel.org: https://git.kernel.org/stable/c/145faa3d03688cbb7bbaaecbd84c01539852942c
    Removed Reference kernel.org: https://git.kernel.org/stable/c/16b1025eaa8fc223ab4273ece20d1c3a4211a95d
    Removed Reference kernel.org: https://git.kernel.org/stable/c/1f12e4b3284d6c863f272eb2de0d4248ed211cf4
    Removed Reference kernel.org: https://git.kernel.org/stable/c/23a28f5f3f6ca1e4184bd0e9631cd0944cf1c807
    Removed Reference kernel.org: https://git.kernel.org/stable/c/253f9ea7e8e53a5176bd80ceb174907b10724c1a
    Removed Reference kernel.org: https://git.kernel.org/stable/c/2820005edae13b140f2d54267d1bd6bb23915f59
    Removed Reference kernel.org: https://git.kernel.org/stable/c/5099871b370335809c0fd1abad74d9c7c205d43f
    Removed Reference kernel.org: https://git.kernel.org/stable/c/65977bed167a92e87085e757fffa5798f7314c9f
    Removed Reference kernel.org: https://git.kernel.org/stable/c/81e7d2530d458548b90a5c5e76b77ad5e5d1c0df
    Removed Reference kernel.org: https://git.kernel.org/stable/c/9319b647902cbd5cc884ac08a8a6d54ce111fc78
    Removed Reference kernel.org: https://git.kernel.org/stable/c/c593d26fb5d577ef31b6e49a31e08ae3ebc1bc1e
    Removed Reference kernel.org: https://git.kernel.org/stable/c/cbbe17a324437c0ff99881a3ee453da45b228a00
    Removed Reference kernel.org: https://git.kernel.org/stable/c/ec18ec230301583395576915d274b407743d8f6c
    Removed Reference kernel.org: https://git.kernel.org/stable/c/f6620df12cb6bdcad671d269debbb23573502f9d
    Removed Reference CVE: https://git.kernel.org/stable/c/000099d71648504fb9c7a4616f92c2b70c3e44ec
    Removed Reference CVE: https://git.kernel.org/stable/c/145faa3d03688cbb7bbaaecbd84c01539852942c
    Removed Reference CVE: https://git.kernel.org/stable/c/16b1025eaa8fc223ab4273ece20d1c3a4211a95d
    Removed Reference CVE: https://git.kernel.org/stable/c/1f12e4b3284d6c863f272eb2de0d4248ed211cf4
    Removed Reference CVE: https://git.kernel.org/stable/c/23a28f5f3f6ca1e4184bd0e9631cd0944cf1c807
    Removed Reference CVE: https://git.kernel.org/stable/c/253f9ea7e8e53a5176bd80ceb174907b10724c1a
    Removed Reference CVE: https://git.kernel.org/stable/c/2820005edae13b140f2d54267d1bd6bb23915f59
    Removed Reference CVE: https://git.kernel.org/stable/c/5099871b370335809c0fd1abad74d9c7c205d43f
    Removed Reference CVE: https://git.kernel.org/stable/c/65977bed167a92e87085e757fffa5798f7314c9f
    Removed Reference CVE: https://git.kernel.org/stable/c/81e7d2530d458548b90a5c5e76b77ad5e5d1c0df
    Removed Reference CVE: https://git.kernel.org/stable/c/9319b647902cbd5cc884ac08a8a6d54ce111fc78
    Removed Reference CVE: https://git.kernel.org/stable/c/c593d26fb5d577ef31b6e49a31e08ae3ebc1bc1e
    Removed Reference CVE: https://git.kernel.org/stable/c/cbbe17a324437c0ff99881a3ee453da45b228a00
    Removed Reference CVE: https://git.kernel.org/stable/c/ec18ec230301583395576915d274b407743d8f6c
    Removed Reference CVE: https://git.kernel.org/stable/c/f6620df12cb6bdcad671d269debbb23573502f9d
  • CVE Rejected by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Dec. 19, 2024

    Action Type Old Value New Value
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://git.kernel.org/stable/c/000099d71648504fb9c7a4616f92c2b70c3e44ec
    Added Reference https://git.kernel.org/stable/c/145faa3d03688cbb7bbaaecbd84c01539852942c
    Added Reference https://git.kernel.org/stable/c/16b1025eaa8fc223ab4273ece20d1c3a4211a95d
    Added Reference https://git.kernel.org/stable/c/1f12e4b3284d6c863f272eb2de0d4248ed211cf4
    Added Reference https://git.kernel.org/stable/c/23a28f5f3f6ca1e4184bd0e9631cd0944cf1c807
    Added Reference https://git.kernel.org/stable/c/253f9ea7e8e53a5176bd80ceb174907b10724c1a
    Added Reference https://git.kernel.org/stable/c/2820005edae13b140f2d54267d1bd6bb23915f59
    Added Reference https://git.kernel.org/stable/c/5099871b370335809c0fd1abad74d9c7c205d43f
    Added Reference https://git.kernel.org/stable/c/65977bed167a92e87085e757fffa5798f7314c9f
    Added Reference https://git.kernel.org/stable/c/81e7d2530d458548b90a5c5e76b77ad5e5d1c0df
    Added Reference https://git.kernel.org/stable/c/9319b647902cbd5cc884ac08a8a6d54ce111fc78
    Added Reference https://git.kernel.org/stable/c/c593d26fb5d577ef31b6e49a31e08ae3ebc1bc1e
    Added Reference https://git.kernel.org/stable/c/cbbe17a324437c0ff99881a3ee453da45b228a00
    Added Reference https://git.kernel.org/stable/c/ec18ec230301583395576915d274b407743d8f6c
    Added Reference https://git.kernel.org/stable/c/f6620df12cb6bdcad671d269debbb23573502f9d
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jul. 18, 2024

    Action Type Old Value New Value
    Added Reference kernel.org https://git.kernel.org/stable/c/253f9ea7e8e53a5176bd80ceb174907b10724c1a [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/23a28f5f3f6ca1e4184bd0e9631cd0944cf1c807 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/145faa3d03688cbb7bbaaecbd84c01539852942c [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/2820005edae13b140f2d54267d1bd6bb23915f59 [No types assigned]
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jul. 11, 2024

    Action Type Old Value New Value
    Added Reference kernel.org https://git.kernel.org/stable/c/cbbe17a324437c0ff99881a3ee453da45b228a00 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/f6620df12cb6bdcad671d269debbb23573502f9d [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/000099d71648504fb9c7a4616f92c2b70c3e44ec [No types assigned]
    Removed Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
    Removed Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jun. 27, 2024

    Action Type Old Value New Value
    Added Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html [No types assigned]
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jun. 25, 2024

    Action Type Old Value New Value
    Added Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html [No types assigned]
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 29, 2024

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

    May. 14, 2024

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

    Apr. 03, 2024

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: mm/writeback: fix possible divide-by-zero in wb_dirty_limits(), again (struct dirty_throttle_control *)->thresh is an unsigned long, but is passed as the u32 divisor argument to div_u64(). On architectures where unsigned long is 64 bytes, the argument will be implicitly truncated. Use div64_u64() instead of div_u64() so that the value used in the "is this a safe division" check is the same as the divisor. Also, remove redundant cast of the numerator to u64, as that should happen implicitly. This would be difficult to exploit in memcg domain, given the ratio-based arithmetic domain_drity_limits() uses, but is much easier in global writeback domain with a BDI_CAP_STRICTLIMIT-backing device, using e.g. vm.dirty_bytes=(1<<32)*PAGE_SIZE so that dtc->thresh == (1<<32)
    Added Reference kernel.org https://git.kernel.org/stable/c/c593d26fb5d577ef31b6e49a31e08ae3ebc1bc1e [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/1f12e4b3284d6c863f272eb2de0d4248ed211cf4 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/81e7d2530d458548b90a5c5e76b77ad5e5d1c0df [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/5099871b370335809c0fd1abad74d9c7c205d43f [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/16b1025eaa8fc223ab4273ece20d1c3a4211a95d [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/ec18ec230301583395576915d274b407743d8f6c [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/65977bed167a92e87085e757fffa5798f7314c9f [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/9319b647902cbd5cc884ac08a8a6d54ce111fc78 [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.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.