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

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2024-50196— pinctrl: ocelot: fix system hang on level based interrupts

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，该漏洞源于存在基于级别的中断处理不当问题。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.21% · P11

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux ce8dc0943357a5d10b05dcf0556b537c1d7b8b1f< 655f5d4662b958122b260be05aa6dfdf8768efe6 affected
ce8dc0943357a5d10b05dcf0556b537c1d7b8b1f< 4a81800ef05bea5a9896f199677f7b7f5020776a affected
ce8dc0943357a5d10b05dcf0556b537c1d7b8b1f< 20728e86289ab463b99b7ab4425515bd26aba417 affected
ce8dc0943357a5d10b05dcf0556b537c1d7b8b1f< dcbe9954634807ec54e22bde278b5b269f921381 affected
ce8dc0943357a5d10b05dcf0556b537c1d7b8b1f< 93b8ddc54507a227087c60a0013ed833b6ae7d3c affected
4.16 affected
< 4.16 unaffected
5.15.169≤ 5.15.* unaffected
… +4 more rows
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2024-50196

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
pinctrl: ocelot: fix system hang on level based interrupts
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: pinctrl: ocelot: fix system hang on level based interrupts The current implementation only calls chained_irq_enter() and chained_irq_exit() if it detects pending interrupts. ``` for (i = 0; i < info->stride; i++) { uregmap_read(info->map, id_reg + 4 * i, &reg); if (!reg) continue; chained_irq_enter(parent_chip, desc); ``` However, in case of GPIO pin configured in level mode and the parent controller configured in edge mode, GPIO interrupt might be lowered by the hardware. In the result, if the interrupt is short enough, the parent interrupt is still pending while the GPIO interrupt is cleared; chained_irq_enter() never gets called and the system hangs trying to service the parent interrupt. Moving chained_irq_enter() and chained_irq_exit() outside the for loop ensures that they are called even when GPIO interrupt is lowered by the hardware. The similar code with chained_irq_enter() / chained_irq_exit() functions wrapping interrupt checking loop may be found in many other drivers: ``` grep -r -A 10 chained_irq_enter drivers/pinctrl ```
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，该漏洞源于存在基于级别的中断处理不当问题。
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 ce8dc0943357a5d10b05dcf0556b537c1d7b8b1f ~ 655f5d4662b958122b260be05aa6dfdf8768efe6 -
Linux Linux 4.16 -

II. Public POCs for CVE-2024-50196

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

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2024-50196

请登录查看更多情报信息。

Patches & Fixes for CVE-2024-50196 (4)

Same Patch Batch · Linux · 2024-11-08 · 38 CVEs total

CVE-2024-50206 9.8 CRITICAL net: ethernet: mtk_eth_soc: fix memory corruption during fq dma init
CVE-2024-50185 8.2 HIGH mptcp: handle consistently DSS corruption
CVE-2024-50174 7.8 HIGH drm/panthor: Fix race when converting group handle to group object
CVE-2024-50211 7.8 HIGH udf: refactor inode_bmap() to handle error
CVE-2024-50208 7.8 HIGH RDMA/bnxt_re: Fix a bug while setting up Level-2 PBL pages
CVE-2024-50207 7.8 HIGH ring-buffer: Fix reader locking when changing the sub buffer order
CVE-2024-50203 7.8 HIGH bpf, arm64: Fix address emission with tag-based KASAN enabled
CVE-2024-50200 7.8 HIGH maple_tree: correct tree corruption on spanning store
CVE-2024-50189 7.8 HIGH HID: amd_sfh: Switch to device-managed dmam_alloc_coherent()
CVE-2024-50188 7.8 HIGH net: phy: dp83869: fix memory corruption when enabling fiber
CVE-2024-50187 7.8 HIGH drm/vc4: Stop the active perfmon before being destroyed
CVE-2024-50186 7.8 HIGH net: explicitly clear the sk pointer, when pf->create fails
CVE-2024-50173 7.8 HIGH drm/panthor: Fix access to uninitialized variable in tick_ctx_cleanup()
CVE-2024-50175 7.8 HIGH media: qcom: camss: Remove use_count guard in stop_streaming
CVE-2024-50182 7.1 HIGH secretmem: disable memfd_secret() if arch cannot set direct map
CVE-2024-50195 7.1 HIGH posix-clock: Fix missing timespec64 check in pc_clock_settime()
CVE-2024-50199 mm/swapfile: skip HugeTLB pages for unuse_vma
CVE-2024-50210 posix-clock: posix-clock: Fix unbalanced locking in pc_clock_settime()
CVE-2024-50176 remoteproc: k3-r5: Fix error handling when power-up failed
CVE-2024-50209 RDMA/bnxt_re: Add a check for memory allocation

Showing top 20 of 38 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-50196

No comments yet

Leave a comment