Unscored CVE-2024-41030 EUVD-2024-39379GHSA-36wr-w868-hx2g

ksmbd: discard write access to the directory open

Published Jul 29, 2024 · Updated May 11, 2026 · Assigned by Linux

Vendor: Linux Product: Linux Package: linux Package: linux Package: linux-allwinner-5.19 Package: linux-aws Package: linux-aws-5.0 Package: linux-aws-5.11 Package: linux-aws-5.13 Package: linux-aws-5.15 Package: linux-aws-5.19 Package: linux-aws-5.3 Package: linux-aws-5.8 Package: linux-aws-6.2 Package: linux-aws-6.5 Package: linux-aws-6.8 Package: linux-aws-fips Package: linux-azure Package: linux-azure-5.11 Package: linux-azure-5.13 Package: linux-azure-5.15 Package: linux-azure-5.19 Package: linux-azure-5.3 Package: linux-azure-5.8 Package: linux-azure-6.2 Package: linux-azure-6.5 Package: linux-azure-6.8 Package: linux-azure-edge Package: linux-azure-fde Package: linux-azure-fde-5.15 Package: linux-azure-fde-5.19 Package: linux-azure-fde-6.2 Package: linux-azure-fips Package: linux-bluefield Package: linux-fips Package: linux-gcp Package: linux-gcp-5.11 Package: linux-gcp-5.13 Package: linux-gcp-5.15 Package: linux-gcp-5.19 Package: linux-gcp-5.3 Package: linux-gcp-5.8 Package: linux-gcp-6.2 Package: linux-gcp-6.5 Package: linux-gcp-6.8 Package: linux-gcp-fips Package: linux-gke Package: linux-gke-4.15 Package: linux-gke-5.15 Package: linux-gke-5.4 Package: linux-gkeop Package: linux-gkeop-5.15 Package: linux-gkeop-5.4 Package: linux-hwe Package: linux-hwe-5.11 Package: linux-hwe-5.13 Package: linux-hwe-5.15 Package: linux-hwe-5.19 Package: linux-hwe-5.8 Package: linux-hwe-6.2 Package: linux-hwe-6.5 Package: linux-hwe-6.8 Package: linux-hwe-edge Package: linux-ibm Package: linux-ibm-5.15 Package: linux-ibm-6.8 Package: linux-intel-5.13 Package: linux-intel-iot-realtime Package: linux-intel-iotg Package: linux-intel-iotg-5.15 Package: linux-kvm Package: linux-lowlatency Package: linux-lowlatency-hwe-5.15 Package: linux-lowlatency-hwe-5.19 Package: linux-lowlatency-hwe-6.2 Package: linux-lowlatency-hwe-6.5 Package: linux-lowlatency-hwe-6.8 Package: linux-nvidia Package: linux-nvidia-6.2 Package: linux-nvidia-6.5 Package: linux-nvidia-6.8 Package: linux-nvidia-lowlatency Package: linux-nvidia-tegra Package: linux-nvidia-tegra-5.15 Package: linux-nvidia-tegra-igx Package: linux-oem Package: linux-oem-5.10 Package: linux-oem-5.13 Package: linux-oem-5.14 Package: linux-oem-5.17 Package: linux-oem-5.6 Package: linux-oem-6.0 Package: linux-oem-6.1 Package: linux-oem-6.5 Package: linux-oem-6.8 Package: linux-oracle Package: linux-oracle-5.0 Package: linux-oracle-5.11 Package: linux-oracle-5.13 Package: linux-oracle-5.15 Package: linux-oracle-5.3 Package: linux-oracle-5.8 Package: linux-oracle-6.5 Package: linux-oracle-6.8 Package: linux-raspi Package: linux-raspi-realtime Package: linux-raspi2 Package: linux-realtime Package: linux-realtime-6.8 Package: linux-riscv Package: linux-riscv-5.11 Package: linux-riscv-5.15 Package: linux-riscv-5.19 Package: linux-riscv-5.8 Package: linux-riscv-6.5 Package: linux-riscv-6.8 Package: linux-starfive-5.19 Package: linux-starfive-6.2 Package: linux-starfive-6.5 Package: linux-vmware Package: linux-xilinx Package: linux-xilinx-zynqmp Platform: Linux Ecosystem: Debian Ecosystem: Ubuntu

Description

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: discard write access to the directory open

may_open() does not allow a directory to be opened with the write access.
However, some writing flags set by client result in adding write access
on server, making ksmbd incompatible with FUSE file system. Simply, let's
discard the write access when opening a directory.

list_add corruption. next is NULL.
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:26!
pc : __list_add_valid+0x88/0xbc
lr : __list_add_valid+0x88/0xbc
Call trace:
__list_add_valid+0x88/0xbc
fuse_finish_open+0x11c/0x170
fuse_open_common+0x284/0x5e8
fuse_dir_open+0x14/0x24
do_dentry_open+0x2a4/0x4e0
dentry_open+0x50/0x80
smb2_open+0xbe4/0x15a4
handle_ksmbd_work+0x478/0x5ec
process_one_work+0x1b4/0x448
worker_thread+0x25c/0x430
kthread+0x104/0x1d4
ret_from_fork+0x10/0x20

Affected products

Vendor	Product	Affected	Fixed
Linux	Linux	5.15	6.1.100

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Debian

Security tracker ↗

Release	Package	Fixed in	Advisory
Debian 14	linux	6.9.10-1	—
Debian 13	linux	6.9.10-1	—
Debian 12	linux	6.1.106-1	—
Debian 11	linux-6.1	6.1.119-1~deb11u1	DLA-4008-1

Ubuntu

Security tracker ↗

Release	Package	Fixed in	Advisory
Ubuntu Nvidia-BlueField 22.04 LTS	linux-bluefield	No fix yet	—
Ubuntu 24.04 LTS	linux	6.8.0-48.48	USN-7089-1
Ubuntu 24.04 LTS	linux-aws	6.8.0-1018.20	USN-7089-3
Ubuntu 24.04 LTS	linux-azure	6.8.0-1017.20	USN-7089-2
Ubuntu 24.04 LTS	linux-gcp +1	6.8.0-1017.19	USN-7095-1, USN-7089-2
Ubuntu 24.04 LTS	linux-gke	6.8.0-1013.17	USN-7089-6
Ubuntu 24.04 LTS	linux-gkeop	6.8.0-1002.4	USN-7156-1
Ubuntu 24.04 LTS	linux-ibm	6.8.0-1015.15	USN-7089-2
Ubuntu 24.04 LTS	linux-lowlatency	6.8.0-48.48.3	USN-7089-7
Ubuntu 24.04 LTS	linux-nvidia-lowlatency	6.8.0-1017.19.1	USN-7095-1
Ubuntu 24.04 LTS	linux-oem-6.8	6.8.0-1016.16	USN-7089-4
Ubuntu 24.04 LTS	linux-oracle	6.8.0-1015.16	USN-7089-3
Ubuntu 24.04 LTS	linux-raspi	6.8.0-1014.16	USN-7089-5
Ubuntu 24.04 LTS	linux-riscv	6.8.0-48.48.1	—
Ubuntu 24.04 LTS	linux-xilinx	6.8.0-1009.10	—
Ubuntu 22.04 LTS	linux +49	No fix yet	—
Ubuntu 22.04 LTS	linux-aws-6.8	6.8.0-1018.19~22.04.1	USN-7089-3
Ubuntu 22.04 LTS	linux-azure-6.8	6.8.0-1017.20~22.04.1	USN-7090-1
Ubuntu 22.04 LTS	linux-gcp-6.8 +1	6.8.0-1017.19~22.04.1	USN-7095-1, USN-7089-1
Ubuntu 22.04 LTS	linux-hwe-6.8	6.8.0-48.48~22.04.1	USN-7089-1
Ubuntu 22.04 LTS	linux-ibm-6.8 +1	6.8.0-1015.15~22.04.1	USN-7089-3
Ubuntu 22.04 LTS	linux-lowlatency-hwe-6.8	6.8.0-48.48.3~22.04.1	USN-7089-7
Ubuntu 22.04 LTS	linux-riscv-6.8	6.8.0-48.48.1~22.04.2	—
Ubuntu 20.04 LTS	linux-gke +28	No fix yet	—
Ubuntu 18.04 LTS	linux-gcp +14	No fix yet	—

Show 7 more (older releases, extended support, other products)

Release	Package	Fixed in	Advisory
Ubuntu 16.04 LTS	linux-hwe-edge	No fix yet	—
Ubuntu Pro Realtime 24.04 LTS	linux-raspi-realtime	6.8.0-2013.14	—
Ubuntu Pro Realtime 24.04 LTS	linux-realtime	6.8.1-1011.11	—
Ubuntu Pro Realtime 22.04 LTS	linux-realtime +1	No fix yet	—
Ubuntu Pro Realtime 22.04 LTS	linux-realtime-6.8	6.8.1-1011.11~22.04.1	—
Ubuntu Pro FIPS-updates 24.04 LTS	linux-fips	6.8.0-78.78+fips1	—
Ubuntu Pro FIPS-updates 22.04 LTS	linux-fips +3	No fix yet	—
Ubuntu Pro FIPS-preview 22.04 LTS	linux-fips +3	No fix yet	—
Ubuntu Pro 20.04 LTS	linux-aws-5.15 +10	No fix yet	—

Advisories 12

WID-SEC-2024-1722 Linux Kernel: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff BSI CERT-Bund (WID) · Nov 9, 2026
USN-7156-1 linux-gkeop vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
USN-7095-1 linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
USN-7090-1 linux-azure-6.8 vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
USN-7089-6 linux-gke vulnerabilities Ubuntu Security Notices (USN) · Oct 26, 2026
USN-7089-3 linux-aws, linux-aws-6.8, linux-oracle, linux-oracle-6.8 vulnerabilities Ubuntu Security Notices (USN) · Oct 26, 2026
USN-7089-7 linux-lowlatency, linux-lowlatency-hwe-6.8 vulnerabilities Ubuntu Security Notices (USN) · Oct 26, 2026
USN-7089-2 linux-azure, linux-gcp, linux-ibm vulnerabilities Ubuntu Security Notices (USN) · Oct 26, 2026
USN-7089-1 linux, linux-gcp-6.8, linux-hwe-6.8 vulnerabilities Ubuntu Security Notices (USN) · Oct 26, 2026
USN-7089-5 linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Oct 26, 2026
USN-7089-4 linux-oem-6.8 vulnerabilities Ubuntu Security Notices (USN) · Oct 26, 2026
DLA-4008-1 linux-6.1 - security update Debian Security (DSA / DLA) · Mar 9, 2026

References