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CVE-2022-49787— mmc: sdhci-pci: Fix possible memory leak caused by missing pci_dev_put()

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mmc驱动中缺少pci_dev_put调用，可能导致内存泄漏。

AI Predicted 3.7 Difficulty: Moderate EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1098.004 · SSH Authorized Keys

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux 659c9bc114a810b3a3c1e50585cc57f1312a6d60< 7570e5b5419ffd34b6dc45a88c51e113a9a187e3 affected
659c9bc114a810b3a3c1e50585cc57f1312a6d60< 5dbd6378dbf96787d6dbcca44156c511ae085ea3 affected
659c9bc114a810b3a3c1e50585cc57f1312a6d60< 27f712cd47d65e14cd52cc32a23d42aeef583d5d affected
659c9bc114a810b3a3c1e50585cc57f1312a6d60< 4423866d31a06a810db22062ed13389416a66b22 affected
659c9bc114a810b3a3c1e50585cc57f1312a6d60< a99a547658e5d451f01ed307426286716b6f01bf affected
659c9bc114a810b3a3c1e50585cc57f1312a6d60< 35bca18092685b488003509fef7055aa2d4f2ebc affected
659c9bc114a810b3a3c1e50585cc57f1312a6d60< 222cfa0118aa68687ace74aab8fdf77ce8fbd7e6 affected
4.4 affected
… +8 more rows
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I. Basic Information for CVE-2022-49787

Vulnerability Information
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Vulnerability Title
mmc: sdhci-pci: Fix possible memory leak caused by missing pci_dev_put()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mmc: sdhci-pci: Fix possible memory leak caused by missing pci_dev_put() pci_get_device() will increase the reference count for the returned pci_dev. We need to use pci_dev_put() to decrease the reference count before amd_probe() returns. There is no problem for the 'smbus_dev == NULL' branch because pci_dev_put() can also handle the NULL input parameter case.
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mmc驱动中缺少pci_dev_put调用，可能导致内存泄漏。
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 659c9bc114a810b3a3c1e50585cc57f1312a6d60 ~ 7570e5b5419ffd34b6dc45a88c51e113a9a187e3 -
Linux Linux 4.4 -

II. Public POCs for CVE-2022-49787

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III. Intelligence Information for CVE-2022-49787

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Patches & Fixes for CVE-2022-49787 (7)

Same Patch Batch · Linux · 2025-05-01 · 245 CVEs total

CVE-2025-37750 9.8 CRITICAL smb: client: fix UAF in decryption with multichannel
CVE-2025-37778 9.8 CRITICAL ksmbd: Fix dangling pointer in krb_authenticate
CVE-2022-49770 9.8 CRITICAL ceph: avoid putting the realm twice when decoding snaps fails
CVE-2022-49931 8.8 HIGH IB/hfi1: Correctly move list in sc_disable()
CVE-2025-37776 8.8 HIGH ksmbd: fix use-after-free in smb_break_all_levII_oplock()
CVE-2025-37777 8.8 HIGH ksmbd: fix use-after-free in __smb2_lease_break_noti()
CVE-2025-37790 8.8 HIGH net: mctp: Set SOCK_RCU_FREE
CVE-2022-49910 8.8 HIGH Bluetooth: L2CAP: Fix use-after-free caused by l2cap_reassemble_sdu
CVE-2022-49886 8.4 HIGH x86/tdx: Panic on bad configs that #VE on "private" memory access
CVE-2025-23159 8.4 HIGH media: venus: hfi: add a check to handle OOB in sfr region
CVE-2025-37749 8.2 HIGH net: ppp: Add bound checking for skb data on ppp_sync_txmung
CVE-2025-37765 7.8 HIGH drm/nouveau: prime: fix ttm_bo_delayed_delete oops
CVE-2025-37779 7.8 HIGH lib/iov_iter: fix to increase non slab folio refcount
CVE-2022-49920 7.8 HIGH netfilter: nf_tables: netlink notifier might race to release objects
CVE-2022-49919 7.8 HIGH netfilter: nf_tables: release flow rule object from commit path
CVE-2022-49921 7.8 HIGH net: sched: Fix use after free in red_enqueue()
CVE-2025-37752 7.8 HIGH net_sched: sch_sfq: move the limit validation
CVE-2025-37756 7.8 HIGH net: tls: explicitly disallow disconnect
CVE-2025-37761 7.8 HIGH drm/xe: Fix an out-of-bounds shift when invalidating TLB
CVE-2022-49804 7.8 HIGH s390: avoid using global register for current_stack_pointer

Showing top 20 of 245 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-49787

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