Vulnerability · Published Dec 30, 2025 · Assigned by Linux
CVE-2022-50840scsi: snic: Fix possible UAF in snic_tgt_create()
Unrated
In plain English
A security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
In the Linux kernel, the following vulnerability has been resolved: scsi: snic: Fix possible UAF in snic_tgt_create() Smatch reports a warning as follows: drivers/scsi/snic/snic_disc.c:307 snic_tgt_create() warn: '&tgt->list' not removed from list If device_add() fails in snic_tgt_create(), tgt will be freed, but tgt->list will not be removed from snic->disc.tgt_list, then list traversal may cause UAF. Remove from snic->disc.tgt_list before free().
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 6.1.4-1 | DEBIAN-CVE-2022-50840 |
| Debian:13 | linux | 6.1.4-1 | DEBIAN-CVE-2022-50840 |
| Debian:14 | linux | 6.1.4-1 | DEBIAN-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux | 5.15.0-69.76 | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1033.37 | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-aws-5.19 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-aws-6.5 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1035.42 | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:24.04:LTS | linux-azure-6.11 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-azure-6.2 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-azure-6.5 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1035.42.1 | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1031.38 | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-gcp-5.19 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:24.04:LTS | linux-gcp-6.11 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-gcp-6.5 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1030.35 | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1017.22 | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:24.04:LTS | linux-hwe-6.11 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-hwe-6.5 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1027.30 | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1027.32 | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1030.35 | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-69.76 | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:24.04:LTS | linux-lowlatency-hwe-6.11 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.5 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1023.23 | UBUNTU-CVE-2022-50840 |
| Ubuntu:24.04:LTS | linux-nvidia-6.11 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-nvidia-6.5 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:24.04:LTS | linux-oem-6.11 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-oem-6.5 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:24.04:LTS | linux-oem-6.8 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1032.38 | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-oracle-6.5 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1026.28 | UBUNTU-CVE-2022-50840 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:24.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:24.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-riscv-5.19 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:24.04:LTS | linux-riscv-6.14 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-riscv-6.5 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-starfive-5.19 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-starfive-6.2 | no fix listed | UBUNTU-CVE-2022-50840 |
| Ubuntu:22.04:LTS | linux-starfive-6.5 | no fix listed | UBUNTU-CVE-2022-50840 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | c8806b6c9e824f47726f2a9b7fbbe7ebf19306fa – before f9d8b8ba0f1a16cde0b1fc9e80466df76b6db8ffc8806b6c9e824f47726f2a9b7fbbe7ebf19306fa – before 3772319e40527e6a5f2ec1d729e01f271d818f5cc8806b6c9e824f47726f2a9b7fbbe7ebf19306fa – before 3007f96ca20c848d0b1b052df6d2cb5ae5586e78c8806b6c9e824f47726f2a9b7fbbe7ebf19306fa – before 6866154c23fba40888ad6d554cccd4bf2edb755ec8806b6c9e824f47726f2a9b7fbbe7ebf19306fa – before ad27f74e901fc48729733c88818e6b96c813057dc8806b6c9e824f47726f2a9b7fbbe7ebf19306fa – before 1895e908b3ae66a5312fd1b2cdda2da82993dca7c8806b6c9e824f47726f2a9b7fbbe7ebf19306fa – before c7f0f8dab1ae5def57c1a8a9cafd6fabe1dc27ccc8806b6c9e824f47726f2a9b7fbbe7ebf19306fa – before 4141cd9e8b3379aea52a85d2c35f6eaf26d14e86 |
| Linux | Linux | 4.2 |
References
- https://git.kernel.org/stable/c/f9d8b8ba0f1a16cde0b1fc9e80466df76b6db8ff
- https://git.kernel.org/stable/c/3772319e40527e6a5f2ec1d729e01f271d818f5c
- https://git.kernel.org/stable/c/3007f96ca20c848d0b1b052df6d2cb5ae5586e78
- https://git.kernel.org/stable/c/6866154c23fba40888ad6d554cccd4bf2edb755e
- https://git.kernel.org/stable/c/ad27f74e901fc48729733c88818e6b96c813057d
- https://git.kernel.org/stable/c/1895e908b3ae66a5312fd1b2cdda2da82993dca7
- https://git.kernel.org/stable/c/c7f0f8dab1ae5def57c1a8a9cafd6fabe1dc27cc
- https://git.kernel.org/stable/c/4141cd9e8b3379aea52a85d2c35f6eaf26d14e86
- https://git.kernel.org/stable/c/e118df492320176af94deec000ae034cc92be754