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CVE-2023-53075— ftrace: Fix invalid address access in lookup_rec() when index is 0

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lookup_rec在索引为0时访问无效地址。

AI Predicted 7.8 Difficulty: Moderate EPSS 0.21% · P10

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 9644302e3315e7e36495d230d5ac7125a316d33e< 2de28e5ce34b22b73b833a21e2c45ae3aade3964 affected
9644302e3315e7e36495d230d5ac7125a316d33e< 7569ee04b0e3b32df79f64db3a7138573edad9bc affected
9644302e3315e7e36495d230d5ac7125a316d33e< ac58b88ccbbb8e9fb83e137cee04a856b1ea6635 affected
9644302e3315e7e36495d230d5ac7125a316d33e< 83c3b2f4e7c61367c7b24551f4c6eb94bbdda283 affected
9644302e3315e7e36495d230d5ac7125a316d33e< 2a0d71fabfeb349216d33f001a6421b1768bd3a9 affected
9644302e3315e7e36495d230d5ac7125a316d33e< 4f84f31f63416b0f02fc146ffdc4ab32723eb7e8 affected
9644302e3315e7e36495d230d5ac7125a316d33e< f1bd8b7fd890d87d0dc4dedc6287ea34dd07c0b4 affected
9644302e3315e7e36495d230d5ac7125a316d33e< ee92fa443358f4fc0017c1d0d325c27b37802504 affected
… +10 more rows
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I. Basic Information for CVE-2023-53075

Vulnerability Information
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Vulnerability Title
ftrace: Fix invalid address access in lookup_rec() when index is 0
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ftrace: Fix invalid address access in lookup_rec() when index is 0 KASAN reported follow problem: BUG: KASAN: use-after-free in lookup_rec Read of size 8 at addr ffff000199270ff0 by task modprobe CPU: 2 Comm: modprobe Call trace: kasan_report __asan_load8 lookup_rec ftrace_location arch_check_ftrace_location check_kprobe_address_safe register_kprobe When checking pg->records[pg->index - 1].ip in lookup_rec(), it can get a pg which is newly added to ftrace_pages_start in ftrace_process_locs(). Before the first pg->index++, index is 0 and accessing pg->records[-1].ip will cause this problem. Don't check the ip when pg->index is 0.
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lookup_rec在索引为0时访问无效地址。
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 9644302e3315e7e36495d230d5ac7125a316d33e ~ 2de28e5ce34b22b73b833a21e2c45ae3aade3964 -
Linux Linux 3.5 -

II. Public POCs for CVE-2023-53075

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III. Intelligence Information for CVE-2023-53075

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Patches & Fixes for CVE-2023-53075 (8)

Same Patch Batch · Linux · 2025-05-02 · 107 CVEs total

CVE-2023-53116 9.8 CRITICAL nvmet: avoid potential UAF in nvmet_req_complete()
CVE-2023-53083 9.8 CRITICAL nfsd: don't replace page in rq_pages if it's a continuation of last page
CVE-2023-53086 8.8 HIGH wifi: mt76: connac: do not check WED status for non-mmio devices
CVE-2025-37798 7.8 HIGH codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog()
CVE-2023-53138 7.8 HIGH net: caif: Fix use-after-free in cfusbl_device_notify()
CVE-2023-53111 7.8 HIGH loop: Fix use-after-free issues
CVE-2023-53107 7.8 HIGH veth: Fix use after free in XDP_REDIRECT
CVE-2023-53102 7.8 HIGH ice: xsk: disable txq irq before flushing hw
CVE-2023-53100 7.8 HIGH ext4: fix WARNING in ext4_update_inline_data
CVE-2023-53094 7.8 HIGH tty: serial: fsl_lpuart: fix race on RX DMA shutdown
CVE-2023-53090 7.8 HIGH drm/amdkfd: Fix an illegal memory access
CVE-2023-53088 7.8 HIGH mptcp: fix UaF in listener shutdown
CVE-2023-53087 7.8 HIGH drm/i915/active: Fix misuse of non-idle barriers as fence trackers
CVE-2023-53084 7.8 HIGH drm/shmem-helper: Remove another errant put in error path
CVE-2023-53080 7.8 HIGH xsk: Add missing overflow check in xdp_umem_reg
CVE-2023-53072 7.8 HIGH mptcp: use the workqueue to destroy unaccepted sockets
CVE-2023-53065 7.8 HIGH perf/core: Fix perf_output_begin parameter is incorrectly invoked in perf_event_bpf_output
CVE-2023-53057 7.8 HIGH Bluetooth: HCI: Fix global-out-of-bounds
CVE-2023-53052 7.8 HIGH cifs: fix use-after-free bug in refresh_cache_worker()
CVE-2023-53043 7.8 HIGH arm64: dts: qcom: sc7280: Mark PCIe controller as cache coherent

Showing top 20 of 107 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-53075

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