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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2023-52504— x86/alternatives: Disable KASAN in apply_alternatives()

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，该漏洞源于存在越界读取问题。

AI Predicted 5.5 Difficulty: Theoretical EPSS 0.28% · P19

Possible ATT&CK Techniques 1 AI

T1055 · Process Injection

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux 6657fca06e3ffab8d0b3f9d8b397f5ee498952d7< 3719d3c36aa853d5a2401af9f8d6b116c91ad5ae affected
6657fca06e3ffab8d0b3f9d8b397f5ee498952d7< 3770c38cd6a60494da29ac2da73ff8156440a2d1 affected
6657fca06e3ffab8d0b3f9d8b397f5ee498952d7< 6788b10620ca6e98575d1e06e72a8974aad7657e affected
6657fca06e3ffab8d0b3f9d8b397f5ee498952d7< ecba5afe86f30605eb9dfb7f265a8de0218d4cfc affected
6657fca06e3ffab8d0b3f9d8b397f5ee498952d7< 5b784489c8158518bf7a466bb3cc045b0fb66b4b affected
6657fca06e3ffab8d0b3f9d8b397f5ee498952d7< cd287cc208dfe6bd6da98e7f88e723209242c9b4 affected
6657fca06e3ffab8d0b3f9d8b397f5ee498952d7< d35652a5fc9944784f6f50a5c979518ff8dacf61 affected
4.17 affected
… +8 more rows
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2023-52504

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
x86/alternatives: Disable KASAN in apply_alternatives()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: x86/alternatives: Disable KASAN in apply_alternatives() Fei has reported that KASAN triggers during apply_alternatives() on a 5-level paging machine: BUG: KASAN: out-of-bounds in rcu_is_watching() Read of size 4 at addr ff110003ee6419a0 by task swapper/0/0 ... __asan_load4() rcu_is_watching() trace_hardirqs_on() text_poke_early() apply_alternatives() ... On machines with 5-level paging, cpu_feature_enabled(X86_FEATURE_LA57) gets patched. It includes KASAN code, where KASAN_SHADOW_START depends on __VIRTUAL_MASK_SHIFT, which is defined with cpu_feature_enabled(). KASAN gets confused when apply_alternatives() patches the KASAN_SHADOW_START users. A test patch that makes KASAN_SHADOW_START static, by replacing __VIRTUAL_MASK_SHIFT with 56, works around the issue. Fix it for real by disabling KASAN while the kernel is patching alternatives. [ mingo: updated the changelog ]
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，该漏洞源于存在越界读取问题。
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 6657fca06e3ffab8d0b3f9d8b397f5ee498952d7 ~ 3719d3c36aa853d5a2401af9f8d6b116c91ad5ae -
Linux Linux 4.17 -

II. Public POCs for CVE-2023-52504

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

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2023-52504

请登录查看更多情报信息。

Other References for CVE-2023-52504 (6)

Same Patch Batch · Linux · 2024-03-02 · 57 CVEs total

CVE-2023-52515 9.8 CRITICAL RDMA/srp: Do not call scsi_done() from srp_abort()
CVE-2023-52530 8.8 HIGH wifi: mac80211: fix potential key use-after-free
CVE-2023-52522 8.8 HIGH net: fix possible store tearing in neigh_periodic_work()
CVE-2023-52502 8.8 HIGH net: nfc: fix races in nfc_llcp_sock_get() and nfc_llcp_sock_get_sn()
CVE-2024-26621 8.2 HIGH mm: huge_memory: don't force huge page alignment on 32 bit
CVE-2023-52574 7.8 HIGH team: fix null-ptr-deref when team device type is changed
CVE-2023-52509 7.8 HIGH ravb: Fix use-after-free issue in ravb_tx_timeout_work()
CVE-2023-52572 7.8 HIGH cifs: Fix UAF in cifs_demultiplex_thread()
CVE-2023-52503 7.8 HIGH tee: amdtee: fix use-after-free vulnerability in amdtee_close_session
CVE-2023-52517 7.8 HIGH spi: sun6i: fix race between DMA RX transfer completion and RX FIFO drain
CVE-2023-52523 7.8 HIGH bpf, sockmap: Reject sk_msg egress redirects to non-TCP sockets
CVE-2023-52513 7.5 HIGH RDMA/siw: Fix connection failure handling
CVE-2023-52565 7.1 HIGH media: uvcvideo: Fix OOB read
CVE-2023-52562 mm/slab_common: fix slab_caches list corruption after kmem_cache_destroy()
CVE-2023-52581 netfilter: nf_tables: fix memleak when more than 255 elements expired
CVE-2023-52566 nilfs2: fix potential use after free in nilfs_gccache_submit_read_data()
CVE-2023-52564 Revert "tty: n_gsm: fix UAF in gsm_cleanup_mux"
CVE-2023-52563 drm/meson: fix memory leak on ->hpd_notify callback
CVE-2022-48627 vt: fix memory overlapping when deleting chars in the buffer
CVE-2023-52559 iommu/vt-d: Avoid memory allocation in iommu_suspend()

Showing top 20 of 57 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-52504

No comments yet

Leave a comment