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WITHDRAWN
CVE-2024-50018
Linux Kernel Net Device NAPI Overflow
Overview
Description

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

Details
INFO

Published Date :

Oct. 21, 2024, 7:15 p.m.

Last Modified :

Oct. 16, 2026, 1:10 p.m.

Remotely Exploit :

—

Source :

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

The following products are affected by CVE-2024-50018 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

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-2024-50018 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-2024-50018 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 Translated by [email protected]

    Oct. 16, 2026

    Action Type Old Value New Value
    Changed Translation Title: rechazado, Description: Motivo del rechazo: Este ID de CVE ha sido rechazado o retirado por su Autoridad de Numeración de CVE (CNA). Title: rechazado, Description: Motivo del rechazo: Este ID de CVE ha sido rechazado o retirado por su Autoridad de Numeración de CVE (CNA).
  • CVE Translated by [email protected]

    Oct. 15, 2026

    Action Type Old Value New Value
    Changed Translation Title: kernel de Linux, Description: En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: napi: Prevenir el desbordamiento de napi_defer_hard_irqs En el commit 6f8b12d661d0 ("net: napi: agregar característica de aplazamiento de irqs duras") se agregó napi_defer_irqs a net_device y napi_defer_irqs_count a napi_struct, ambos como tipo int. Este valor nunca baja de cero, por lo que no hay razón para que sea un int con signo. Cambie el tipo para ambos de int a u32 y agregue una comprobación de desbordamiento a sysfs para limitar el valor a S32_MAX. El límite de S32_MAX se eligió porque el límite práctico antes de este parche era S32_MAX (cualquier valor mayor era un desbordamiento) y, por lo tanto, no se introdujeron cambios de comportamiento. Si se necesita el bit adicional en el futuro, se puede aumentar el límite. Antes de este parche: $ sudo bash -c 'echo 2147483649 > /sys/class/net/eth4/napi_defer_hard_irqs' $ cat /sys/class/net/eth4/napi_defer_hard_irqs -2147483647 Después de este parche: $ sudo bash -c 'echo 2147483649 > /sys/class/net/eth4/napi_defer_hard_irqs' bash: línea 0: echo: error de escritura: resultado numérico fuera de rango De manera similar, /sys/class/net/XXXXX/tx_queue_len se define como unsigned: include/linux/netdevice.h: unsigned int tx_queue_len; Y tiene una comprobación de desbordamiento: dev_change_tx_queue_len(..., unsigned long new_len): if (new_len != (unsigned int)new_len) return -ERANGE; Title: rechazado, Description: Motivo del rechazo: Este ID de CVE ha sido rechazado o retirado por su Autoridad de Numeración de CVE (CNA).
  • CVE Rejected by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Dec. 12, 2024

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

    Dec. 12, 2024

    Action Type Old Value New Value
    Changed Description In the Linux kernel, the following vulnerability has been resolved: net: napi: Prevent overflow of napi_defer_hard_irqs In commit 6f8b12d661d0 ("net: napi: add hard irqs deferral feature") napi_defer_irqs was added to net_device and napi_defer_irqs_count was added to napi_struct, both as type int. This value never goes below zero, so there is not reason for it to be a signed int. Change the type for both from int to u32, and add an overflow check to sysfs to limit the value to S32_MAX. The limit of S32_MAX was chosen because the practical limit before this patch was S32_MAX (anything larger was an overflow) and thus there are no behavioral changes introduced. If the extra bit is needed in the future, the limit can be raised. Before this patch: $ sudo bash -c 'echo 2147483649 > /sys/class/net/eth4/napi_defer_hard_irqs' $ cat /sys/class/net/eth4/napi_defer_hard_irqs -2147483647 After this patch: $ sudo bash -c 'echo 2147483649 > /sys/class/net/eth4/napi_defer_hard_irqs' bash: line 0: echo: write error: Numerical result out of range Similarly, /sys/class/net/XXXXX/tx_queue_len is defined as unsigned: include/linux/netdevice.h: unsigned int tx_queue_len; And has an overflow check: dev_change_tx_queue_len(..., unsigned long new_len): if (new_len != (unsigned int)new_len) return -ERANGE; Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
    Removed CVSS V3.1 NIST: AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Removed CWE NIST: CWE-190
    Removed CPE Configuration 2527243 Config Identifier: 2, OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.11 from (excluding) 6.11.3 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (excluding) 6.10.14
    Removed Reference kernel.org: https://git.kernel.org/stable/c/08062af0a52107a243f7608fd972edb54ca5b7f8
    Removed Reference kernel.org: https://git.kernel.org/stable/c/5e753b743d3b38a3e10be666c32c5434423d0093
    Removed Reference kernel.org: https://git.kernel.org/stable/c/d694ad8b7e5004df86ecd415cb2320d543723672
    Removed Reference Type kernel.org: https://git.kernel.org/stable/c/08062af0a52107a243f7608fd972edb54ca5b7f8 Types: Patch
    Removed Reference Type kernel.org: https://git.kernel.org/stable/c/5e753b743d3b38a3e10be666c32c5434423d0093 Types: Patch
    Removed Reference Type kernel.org: https://git.kernel.org/stable/c/d694ad8b7e5004df86ecd415cb2320d543723672 Types: Patch
  • Initial Analysis by [email protected]

    Oct. 25, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://git.kernel.org/stable/c/08062af0a52107a243f7608fd972edb54ca5b7f8 No Types Assigned https://git.kernel.org/stable/c/08062af0a52107a243f7608fd972edb54ca5b7f8 Patch
    Changed Reference Type https://git.kernel.org/stable/c/5e753b743d3b38a3e10be666c32c5434423d0093 No Types Assigned https://git.kernel.org/stable/c/5e753b743d3b38a3e10be666c32c5434423d0093 Patch
    Changed Reference Type https://git.kernel.org/stable/c/d694ad8b7e5004df86ecd415cb2320d543723672 No Types Assigned https://git.kernel.org/stable/c/d694ad8b7e5004df86ecd415cb2320d543723672 Patch
    Added CWE NIST CWE-190
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 6.10.14 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.11 up to (excluding) 6.11.3
  • CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Oct. 21, 2024

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: net: napi: Prevent overflow of napi_defer_hard_irqs In commit 6f8b12d661d0 ("net: napi: add hard irqs deferral feature") napi_defer_irqs was added to net_device and napi_defer_irqs_count was added to napi_struct, both as type int. This value never goes below zero, so there is not reason for it to be a signed int. Change the type for both from int to u32, and add an overflow check to sysfs to limit the value to S32_MAX. The limit of S32_MAX was chosen because the practical limit before this patch was S32_MAX (anything larger was an overflow) and thus there are no behavioral changes introduced. If the extra bit is needed in the future, the limit can be raised. Before this patch: $ sudo bash -c 'echo 2147483649 > /sys/class/net/eth4/napi_defer_hard_irqs' $ cat /sys/class/net/eth4/napi_defer_hard_irqs -2147483647 After this patch: $ sudo bash -c 'echo 2147483649 > /sys/class/net/eth4/napi_defer_hard_irqs' bash: line 0: echo: write error: Numerical result out of range Similarly, /sys/class/net/XXXXX/tx_queue_len is defined as unsigned: include/linux/netdevice.h: unsigned int tx_queue_len; And has an overflow check: dev_change_tx_queue_len(..., unsigned long new_len): if (new_len != (unsigned int)new_len) return -ERANGE;
    Added Reference kernel.org https://git.kernel.org/stable/c/d694ad8b7e5004df86ecd415cb2320d543723672 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/5e753b743d3b38a3e10be666c32c5434423d0093 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/08062af0a52107a243f7608fd972edb54ca5b7f8 [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.
CVSS
Vulnerability Scoring Details
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