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CVE-2021-47095— ipmi: ssif: initialize ssif_info->client early

EPSS 0.01% · P3
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I. Basic Information for CVE-2021-47095

Vulnerability Information
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Vulnerability Title
ipmi: ssif: initialize ssif_info->client early
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于 ipmi ssif中的 ssif_info存在安全问题，可能导致内核崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux c4436c9149c5d2bc0c49ab57ec85c75ea1c4d61c ~ 8efd6a3391f7b0b19fb0c38e50add06ca30c94af -
LinuxLinux 5.4 -

II. Public POCs for CVE-2021-47095

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III. Intelligence Information for CVE-2021-47095

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Same Patch Batch · Linux · 2024-03-04 · 26 CVEs total

CVE-2021-47096ALSA: rawmidi - fix the uninitalized user_pversion
CVE-2021-47108drm/mediatek: hdmi: Perform NULL pointer check for mtk_hdmi_conf
CVE-2021-47107NFSD: Fix READDIR buffer overflow
CVE-2021-47106netfilter: nf_tables: fix use-after-free in nft_set_catchall_destroy()
CVE-2021-47105ice: xsk: return xsk buffers back to pool when cleaning the ring
CVE-2021-47104IB/qib: Fix memory leak in qib_user_sdma_queue_pkts()
CVE-2021-47103inet: fully convert sk->sk_rx_dst to RCU rules
CVE-2021-47102net: marvell: prestera: fix incorrect structure access
CVE-2021-47101asix: fix uninit-value in asix_mdio_read()
CVE-2021-47100ipmi: Fix UAF when uninstall ipmi_si and ipmi_msghandler module
CVE-2021-47099veth: ensure skb entering GRO are not cloned.
CVE-2021-47098hwmon: (lm90) Prevent integer overflow/underflow in hysteresis calculations
CVE-2021-47097Input: elantech - fix stack out of bound access in elantech_change_report_id()
CVE-2024-26622tomoyo: fix UAF write bug in tomoyo_write_control()
CVE-2021-47094KVM: x86/mmu: Don't advance iterator after restart due to yielding
CVE-2021-47093platform/x86: intel_pmc_core: fix memleak on registration failure
CVE-2021-47092KVM: VMX: Always clear vmx->fail on emulation_required
CVE-2021-47091mac80211: fix locking in ieee80211_start_ap error path
CVE-2021-47090mm/hwpoison: clear MF_COUNT_INCREASED before retrying get_any_page()
CVE-2021-47089kfence: fix memory leak when cat kfence objects

Showing top 20 of 26 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2021-47095

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