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CVE-2021-47165— drm/meson: fix shutdown crash when component not probed

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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 drm meson未探测到组件时会崩溃。

AI Predicted 5.5 Difficulty: Theoretical EPSS 0.23% · P12

Possible ATT&CK Techniques 1 AI

T1059.004 · Unix Shell

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 8a5160cc8488776ddc48ea045860dab015f47390< b4298d33c1fcce511ffe84d8d3de07e220300f9b affected
8fbbf2b3849419e31731902d7478b0c934732632< e256a0eb43e17209e347409a80805b1659398d68 affected
d2100ef32a8cfd024bad94f4fbc5e53d40d2b3da< 4ce2bf20b4a6e307e114847d60b2bf40a6a1fac0 affected
d4ec1ffbdaa8939a208656e9c1440742c457ef16< d66083c0d6f5125a4d982aa177dd71ab4cd3d212 affected
fa0c16caf3d73ab4d2e5d6fa2ef2394dbec91791< b4b91033a0b11fe9ade58156cd9168f89f4a8c1a affected
fa0c16caf3d73ab4d2e5d6fa2ef2394dbec91791< 7cfc4ea78fc103ea51ecbacd9236abb5b1c490d2 affected
cef14d5d92f14a6e282c3216c2da63e05f14758a affected
4.14.226< 4.14.235 affected
… +12 more rows
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I. Basic Information for CVE-2021-47165

Vulnerability Information
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Vulnerability Title
drm/meson: fix shutdown crash when component not probed
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/meson: fix shutdown crash when component not probed When main component is not probed, by example when the dw-hdmi module is not loaded yet or in probe defer, the following crash appears on shutdown: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000038 ... pc : meson_drv_shutdown+0x24/0x50 lr : platform_drv_shutdown+0x20/0x30 ... Call trace: meson_drv_shutdown+0x24/0x50 platform_drv_shutdown+0x20/0x30 device_shutdown+0x158/0x360 kernel_restart_prepare+0x38/0x48 kernel_restart+0x18/0x68 __do_sys_reboot+0x224/0x250 __arm64_sys_reboot+0x24/0x30 ... Simply check if the priv struct has been allocated before using it.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
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 drm meson未探测到组件时会崩溃。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux 8a5160cc8488776ddc48ea045860dab015f47390 ~ b4298d33c1fcce511ffe84d8d3de07e220300f9b -
Linux Linux 5.12 -

II. Public POCs for CVE-2021-47165

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III. Intelligence Information for CVE-2021-47165

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Other References for CVE-2021-47165 (6)

Same Patch Batch · Linux · 2024-03-25 · 40 CVEs total

CVE-2021-47137 9.8 CRITICAL net: lantiq: fix memory corruption in RX ring
CVE-2021-47168 9.8 CRITICAL NFS: fix an incorrect limit in filelayout_decode_layout()
CVE-2021-47162 9.8 CRITICAL tipc: skb_linearize the head skb when reassembling msgs
CVE-2021-47136 8.6 HIGH net: zero-initialize tc skb extension on allocation
CVE-2021-47160 8.1 HIGH net: dsa: mt7530: fix VLAN traffic leaks
CVE-2021-47142 7.8 HIGH drm/amdgpu: Fix a use-after-free
CVE-2021-47175 7.8 HIGH net/sched: fq_pie: fix OOB access in the traffic path
CVE-2021-47163 7.8 HIGH tipc: wait and exit until all work queues are done
CVE-2021-47159 7.8 HIGH net: dsa: fix a crash if ->get_sset_count() fails
CVE-2021-47158 7.8 HIGH net: dsa: sja1105: add error handling in sja1105_setup()
CVE-2021-47153 7.8 HIGH i2c: i801: Don't generate an interrupt on bus reset
CVE-2021-47152 7.8 HIGH mptcp: fix data stream corruption
CVE-2021-47148 7.8 HIGH octeontx2-pf: fix a buffer overflow in otx2_set_rxfh_context()
CVE-2021-47179 7.5 HIGH NFSv4: Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return()
CVE-2021-47178 7.5 HIGH scsi: target: core: Avoid smp_processor_id() in preemptible code
CVE-2021-47167 NFS: Fix an Oopsable condition in __nfs_pageio_add_request()
CVE-2021-47180 NFC: nci: fix memory leak in nci_allocate_device
CVE-2021-47177 iommu/vt-d: Fix sysfs leak in alloc_iommu()
CVE-2021-47176 s390/dasd: add missing discipline function
CVE-2021-47141 gve: Add NULL pointer checks when freeing irqs.

Showing top 20 of 40 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2021-47165

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