CVE-2021-47095
mediumpriority · track · 22EPSS 0.002 · 13 %ileDEEURUUSEPSS · scored 2026-10-28
In the Linux kernel, the following vulnerability has been resolved: ipmi: ssif: initialize ssif_info->client early During probe ssif_info->client is dereferenced in error path. However, it is set when some of the error checking has already been done. This causes following kernel crash if an error path is taken: [ 30.645593][ T674] ipmi_ssif 0-000e: ipmi_ssif: Not probing, Interface already present [ 30.657616][ T674] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000088 ... [ 30.657723][ T674] pc : __dev_printk+0x28/0xa0 [ 30.657732][ T674] lr : _dev_err+0x7c/0xa0 ... [ 30.657772][ T674] Call trace: [ 30.657775][ T674] __dev_printk+0x28/0xa0 [ 30.657778][ T674] _dev_err+0x7c/0xa0 [ 30.657781][ T674] ssif_probe+0x548/0x900 [ipmi_ssif 62ce4b08badc1458fd896206d9ef69a3c31f3d3e] [ 30.657791][ T674] i2c_device_probe+0x37c/0x3c0 ... Initialize ssif_info->client before any error path can be taken. Clear i2c_client data in the error path to prevent the dangling pointer from leaking.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (34)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2024-0549Linux Kernel: Mehrere SchwachstellenDeutsch2024-03-04csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen im Linux-Kernel ausnutzen, um einen Denial-of-Service-Zustand herbeizuführen oder einen nicht spezifizierten Angriff durchzuführen.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (14)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2021-47095/cnnvd
- https://git.kernel.org/stable/c/1f6ab847461ce7dd89ae9db2dd4658c993355d7ccnnvd
- https://git.kernel.org/stable/c/34f35f8f14bc406efc06ee4ff73202c6fd245d15cnnvd
- https://git.kernel.org/stable/c/77a7311ca167aa5b7055c549a940a56e73ee5f29cnnvd
- https://git.kernel.org/stable/c/8efd6a3391f7b0b19fb0c38e50add06ca30c94afcnnvd
- https://vigilance.fr/vulnerability/Linux-kernel-multiple-vulnerabilities-dated-05-03-2024-43699cnnvd
- https://git.kernel.org/stable/c/1f6ab847461ce7dd89ae9db2dd4658c993355d7cenisa_euvd
- https://git.kernel.org/stable/c/34f35f8f14bc406efc06ee4ff73202c6fd245d15enisa_euvd
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