PT-2025-49650 · Git+4 · Kernel+91

Published 2025-12-09 · Updated 2025-12-22 · CVE-2023-53790

Positive Technologies (AI Summary)

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.1.0+ #1

Description The Linux kernel contains an issue in the bpf memory allocator where a freed element may be immediately reused. For htab maps, this reuse can reinitialize special fields in map values, but lookup procedures may still access these fields, potentially leading to a hard-lockup. The issue occurs because the allocated object from the slab is not properly zeroed, leading to inconsistent data access.

Recommendations Update to a newer version of the Linux kernel than 6.1.0+ #1.

Exploit

Related Identifiers

CVE-2023-53790

Affected Products

Kernel

Linux

Linux-Allwinner-5.19

Linux-Aws

Linux-Aws-5.0

Linux-Aws-5.11

Linux-Aws-5.13

Linux-Aws-5.19

Linux-Aws-5.3

Linux-Aws-5.8

Linux-Aws-6.2

Linux-Aws-6.5

Linux-Aws-Fips

Linux-Azure

Linux-Azure-5.11

Linux-Azure-5.13

Linux-Azure-5.19

Linux-Azure-5.3

Linux-Azure-5.8

Linux-Azure-6.11

Linux-Azure-6.2

Linux-Azure-6.5

Linux-Azure-Edge

Linux-Azure-Fde

Linux-Azure-Fde-5.19

Linux-Azure-Fde-6.2

Linux-Fips

Linux-Gcp

Linux-Gcp-5.11

Linux-Gcp-5.13

Linux-Gcp-5.19

Linux-Gcp-5.3

Linux-Gcp-5.8

Linux-Gcp-6.11

Linux-Gcp-6.2

Linux-Gcp-6.5

Linux-Gke

Linux-Gke-4.15

Linux-Gkeop-5.15

Linux-Gke-5.4

Linux-Gkeop

Linux-Hwe

Linux-Hwe-5.11

Linux-Hwe-5.13

Linux-Hwe-5.19

Linux-Hwe-5.8

Linux-Hwe-6.11

Linux-Hwe-6.2

Linux-Hwe-6.5

Linux-Hwe-Edge

Linux-Intel-5.13

Linux-Intel-Iot-Realtime

Linux-Lowlatency-Hwe-5.19

Linux-Lowlatency-Hwe-6.11

Linux-Lowlatency-Hwe-6.2

Linux-Lowlatency-Hwe-6.5

Linux-Lts

Linux-Nvidia-6.11

Linux-Nvidia-6.2

Linux-Nvidia-6.5

Linux-Oem

Linux-Oem-5.10

Linux-Oem-5.13

Linux-Oem-5.14

Linux-Oem-5.17

Linux-Oem-5.6

Linux-Oem-6.0

Linux-Oem-6.1

Linux-Oem-6.11

Linux-Oem-6.5

Linux-Oem-6.8

Linux-Oracle

Linux-Oracle-5.0

Linux-Oracle-5.11

Linux-Oracle-5.13

Linux-Oracle-5.3

Linux-Oracle-5.8

Linux-Oracle-6.5

Linux-Raspi

Linux-Raspi-Realtime

Linux-Raspi2

Linux-Realtime

Linux-Riscv

Linux-Riscv-5.11

Linux-Riscv-5.19

Linux-Riscv-5.8

Linux-Riscv-6.14

Linux-Riscv-6.5

Linux-Starfive-5.19

Linux-Starfive-6.2

Linux-Starfive-6.5

Linux-Xilinx

References · 16

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53790.json · Exploit
• https://osv.dev/vulnerability/CVE-2023-53790 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-53790 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53790 · Security Note
• https://cve.org/CVERecord?id=CVE-2023-53790 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53790 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53790 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-53790 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-53790 · Vendor Advisory
• https://git.kernel.org/stable/c/678ea18d6240299fd77d7000c8b1d7e5f274c8af · Note
• https://git.kernel.org/linus/997849c4b969034e225153f41026657def66d286 · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note
• https://twitter.com/CVEnew/status/2003198640152551835 · Twitter Post
• https://git.kernel.org/stable/c/5d447e04290e78bdc1a3a6c321320d384e09c2f1 · Note
• https://docs.bell-sw.com/security/cves/CVE-2023-53790 · Note