CVE-2022-50215High· 7.8▾ TwilightIn the Linux kernel, the following vulnerability has been resolved: scsi: sg: Allow waiting for commands to complete on removed device When a SCSI device is removed while in active use, currently sg will immediately return -ENODEV on a…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0.1 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Oct 15.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.2%
0.2% → 0.3%
In the Linux kernel, the following vulnerability has been resolved:
scsi: sg: Allow waiting for commands to complete on removed device
When a SCSI device is removed while in active use, currently sg will immediately return -ENODEV on any attempt to wait for active commands that were sent before the removal. This is problematic for commands that use SG_FLAG_DIRECT_IO since the data buffer may still be in use by the kernel when userspace frees or reuses it after getting ENODEV, leading to corrupted userspace memory (in the case of READ-type commands) or corrupted data being sent to the device (in the case of WRITE-type commands). This has been seen in practice when logging out of a iscsi_tcp session, where the iSCSI driver may still be processing commands after the device has been marked for removal.
Change the policy to allow userspace to wait for active sg commands even when the device is being removed. Return -ENODEV only when there are no more responses to read.
linux_kernel < 4.9.326linux_kernel >= 4.10, < 4.14.291linux_kernel >= 4.15, < 4.19.256linux_kernel >= 4.20, < 5.4.211linux_kernel >= 5.5, < 5.10.137linux_kernel >= 5.11, < 5.15.61linux_kernel >= 5.16, < 5.18.18linux_kernel >= 5.19, < 5.19.2Upgrade past the affected range:
linux_kernel 5.19.2Connected by shared product, vendor, weakness, or advisory.
CVE-2022-36280Medium· 6.3An out-of-bounds(OOB) memory access vulnerability was found in vmwgfx driver in drivers/gpu/vmxgfx/vmxgfx_kms.c in GPU component in the Linux kernel with device file '/dev/dri/renderD128 (or Dxxx)'
CVE-2022-36123High· 7.8The Linux kernel before 5.18.13 lacks a certain clear operation for the block starting symbol (.bss)
CVE-2022-34918High· 7.8An issue was discovered in the Linux kernel through 5.18.9
CVE-2022-32250High· 7.8net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to a use-after-free.
CVE-2022-32296Low· 3.3The Linux kernel before 5.17.9 allows TCP servers to identify clients by observing what source ports are used
CVE-2022-3104Medium· 5.5An issue was discovered in the Linux kernel through 5.16-rc6