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CVE-2024-39484— mmc: davinci: Don't strip remove function when driver is builtin

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。攻击者利用该漏洞可以导致资源泄漏。

AI Predicted 5.5 Difficulty: Trivial EPSS 0.23% · P13

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux b4cff4549b7a8c5fc8b88e3493b6287555f0512c< 6ff7cfa02baabec907f6f29ea76634e6256d2ec4 affected
b4cff4549b7a8c5fc8b88e3493b6287555f0512c< aea35157bb9b825faa0432bd0f7fbea37ff39aa1 affected
b4cff4549b7a8c5fc8b88e3493b6287555f0512c< 5ee241f72edc6dce5051a5f100eab6cc019d873e affected
b4cff4549b7a8c5fc8b88e3493b6287555f0512c< 7590da4c04dd4aa9c262da0231e978263861c6eb affected
b4cff4549b7a8c5fc8b88e3493b6287555f0512c< 1d5ed0efe51d36b9ae9b64f133bf41cdbf56f584 affected
b4cff4549b7a8c5fc8b88e3493b6287555f0512c< 55c421b364482b61c4c45313a535e61ed5ae4ea3 affected
2.6.33 affected
< 2.6.33 unaffected
… +6 more rows
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I. Basic Information for CVE-2024-39484

Vulnerability Information
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Vulnerability Title
mmc: davinci: Don't strip remove function when driver is builtin
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mmc: davinci: Don't strip remove function when driver is builtin Using __exit for the remove function results in the remove callback being discarded with CONFIG_MMC_DAVINCI=y. When such a device gets unbound (e.g. using sysfs or hotplug), the driver is just removed without the cleanup being performed. This results in resource leaks. Fix it by compiling in the remove callback unconditionally. This also fixes a W=1 modpost warning: WARNING: modpost: drivers/mmc/host/davinci_mmc: section mismatch in reference: davinci_mmcsd_driver+0x10 (section: .data) -> davinci_mmcsd_remove (section: .exit.text)
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。攻击者利用该漏洞可以导致资源泄漏。
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 b4cff4549b7a8c5fc8b88e3493b6287555f0512c ~ 6ff7cfa02baabec907f6f29ea76634e6256d2ec4 -
Linux Linux 2.6.33 -

II. Public POCs for CVE-2024-39484

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III. Intelligence Information for CVE-2024-39484

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Other References for CVE-2024-39484 (5)

Same Patch Batch · Linux · 2024-07-05 · 14 CVEs total

CVE-2024-39480 8.4 HIGH kdb: Fix buffer overflow during tab-complete
CVE-2024-39482 7.8 HIGH bcache: fix variable length array abuse in btree_iter
CVE-2024-39481 7.8 HIGH media: mc: Fix graph walk in media_pipeline_start
CVE-2024-39479 7.8 HIGH drm/i915/hwmon: Get rid of devm
CVE-2024-39478 7.8 HIGH crypto: starfive - Do not free stack buffer
CVE-2024-39477 7.8 HIGH mm/hugetlb: do not call vma_add_reservation upon ENOMEM
CVE-2024-39472 7.3 HIGH xfs: fix log recovery buffer allocation for the legacy h_size fixup
CVE-2024-39483 7.1 HIGH KVM: SVM: WARN on vNMI + NMI window iff NMIs are outright masked
CVE-2024-39485 media: v4l: async: Properly re-initialise notifier entry in unregister
CVE-2024-39476 md/raid5: fix deadlock that raid5d() wait for itself to clear MD_SB_CHANGE_PENDING
CVE-2024-39475 fbdev: savage: Handle err return when savagefb_check_var failed
CVE-2024-39474 mm/vmalloc: fix vmalloc which may return null if called with __GFP_NOFAIL
CVE-2024-39473 ASoC: SOF: ipc4-topology: Fix input format query of process modules without base extension

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-39484

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