Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2024-44971— net: dsa: bcm_sf2: Fix a possible memory leak in bcm_sf2_mdio_register()

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net: dsa: bcm_sf2组件的bcm_sf2_mdio_register函数中存在内存泄漏漏洞。

AI Predicted 5.0 Difficulty: Trivial EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 771089c2a485958e423f305e974303760167b45c< b7b8d9f5e679af60c94251fd6728dde34be69a71 affected
771089c2a485958e423f305e974303760167b45c< c05516c072903f6fb9134b8e7e1ad4bffcdc4819 affected
771089c2a485958e423f305e974303760167b45c< 7feef10768ea71d468d9bbc1e0d14c461876768c affected
771089c2a485958e423f305e974303760167b45c< a7d2808d67570e6acae45c2a96e0d59986888e4c affected
771089c2a485958e423f305e974303760167b45c< f3d5efe18a11f94150fee8b3fda9d62079af640a affected
771089c2a485958e423f305e974303760167b45c< e3862093ee93fcfbdadcb7957f5f8974fffa806a affected
5.10 affected
< 5.10 unaffected
… +6 more rows
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2024-44971

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
net: dsa: bcm_sf2: Fix a possible memory leak in bcm_sf2_mdio_register()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: dsa: bcm_sf2: Fix a possible memory leak in bcm_sf2_mdio_register() bcm_sf2_mdio_register() calls of_phy_find_device() and then phy_device_remove() in a loop to remove existing PHY devices. of_phy_find_device() eventually calls bus_find_device(), which calls get_device() on the returned struct device * to increment the refcount. The current implementation does not decrement the refcount, which causes memory leak. This commit adds the missing phy_device_free() call to decrement the refcount via put_device() to balance the refcount.
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net: dsa: bcm_sf2组件的bcm_sf2_mdio_register函数中存在内存泄漏漏洞。
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 771089c2a485958e423f305e974303760167b45c ~ b7b8d9f5e679af60c94251fd6728dde34be69a71 -
Linux Linux 5.10 -

II. Public POCs for CVE-2024-44971

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2024-44971

请登录查看更多情报信息。

Patches & Fixes for CVE-2024-44971 (5)

Same Patch Batch · Linux · 2024-09-04 · 58 CVEs total

CVE-2024-44984 10.0 CRITICAL bnxt_en: Fix double DMA unmapping for XDP_REDIRECT
CVE-2024-44998 9.8 CRITICAL atm: idt77252: prevent use after free in dequeue_rx()
CVE-2024-44970 9.8 CRITICAL net/mlx5e: SHAMPO, Fix invalid WQ linked list unlink
CVE-2024-44985 9.8 CRITICAL ipv6: prevent possible UAF in ip6_xmit()
CVE-2024-44988 8.8 HIGH net: dsa: mv88e6xxx: Fix out-of-bound access
CVE-2024-44994 8.8 HIGH iommu: Restore lost return in iommu_report_device_fault()
CVE-2024-44973 8.1 HIGH mm, slub: do not call do_slab_free for kfence object
CVE-2024-44986 8.1 HIGH ipv6: fix possible UAF in ip6_finish_output2()
CVE-2024-44978 7.8 HIGH drm/xe: Free job before xe_exec_queue_put
CVE-2024-44995 7.8 HIGH net: hns3: fix a deadlock problem when config TC during resetting
CVE-2024-44974 7.8 HIGH mptcp: pm: avoid possible UaF when selecting endp
CVE-2024-44967 7.8 HIGH drm/mgag200: Bind I2C lifetime to DRM device
CVE-2024-44997 7.8 HIGH net: ethernet: mtk_wed: fix use-after-free panic in mtk_wed_setup_tc_block_cb()
CVE-2024-44987 7.8 HIGH ipv6: prevent UAF in ip6_send_skb()
CVE-2024-44966 7.8 HIGH binfmt_flat: Fix corruption when not offsetting data start
CVE-2024-44951 7.8 HIGH serial: sc16is7xx: fix TX fifo corruption
CVE-2024-44954 7.8 HIGH ALSA: line6: Fix racy access to midibuf
CVE-2024-44959 7.8 HIGH tracefs: Use generic inode RCU for synchronizing freeing
CVE-2024-45000 7.8 HIGH fs/netfs/fscache_cookie: add missing "n_accesses" check
CVE-2024-44949 7.8 HIGH parisc: fix a possible DMA corruption

Showing top 20 of 58 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-44971

No comments yet

Leave a comment