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CVE-2023-53766— FS: JFS: Check for read-only mounted filesystem in txBegin

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，该漏洞源于未检查只读文件系统状态，可能导致空指针取消引用。

AI Predicted 3.3 Difficulty: Moderate EPSS 0.19% · P9

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< a88efca805bea93cea9187dfd00835aa7093bf1b affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 97c1f26e4d4af55e8584e4646dd5c5fa7baf62c7 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 2a8807f9f511c64de0c7cc9900a1683e3d72a3e5 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 5c094ca994824e038b6a97835ded4e5d1d808504 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 2febd5f81e4bfba61d9f374dcca628aff374cc56 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< aa7cdf487ab3fa47284daaccc3d7d5de01c6a84c affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< b0ed8ed0428ee96092da6fefa5cfacbe4abed701 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 95e2b352c03b0a86c5717ba1d24ea20969abcacc affected
… +10 more rows
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I. Basic Information for CVE-2023-53766

Vulnerability Information
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Vulnerability Title
FS: JFS: Check for read-only mounted filesystem in txBegin
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: FS: JFS: Check for read-only mounted filesystem in txBegin This patch adds a check for read-only mounted filesystem in txBegin before starting a transaction potentially saving from NULL pointer deref.
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，该漏洞源于未检查只读文件系统状态，可能导致空指针取消引用。
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 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ~ a88efca805bea93cea9187dfd00835aa7093bf1b -
Linux Linux 2.6.12 -

II. Public POCs for CVE-2023-53766

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III. Intelligence Information for CVE-2023-53766

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Same Patch Batch · Linux · 2025-12-08 · 82 CVEs total

CVE-2023-53751 9.8 CRITICAL cifs: fix potential use-after-free bugs in TCP_Server_Info::hostname
CVE-2025-40320 9.8 CRITICAL smb: client: fix potential cfid UAF in smb2_query_info_compound
CVE-2023-53769 9.3 CRITICAL virt/coco/sev-guest: Double-buffer messages
CVE-2025-40318 8.8 HIGH Bluetooth: hci_sync: fix race in hci_cmd_sync_dequeue_once
CVE-2023-53764 8.8 HIGH wifi: ath12k: Handle lock during peer_id find
CVE-2023-53762 8.8 HIGH Bluetooth: hci_sync: Fix UAF in hci_disconnect_all_sync
CVE-2025-40292 8.4 HIGH virtio-net: fix received length check in big packets
CVE-2025-40309 8.0 HIGH Bluetooth: SCO: Fix UAF on sco_conn_free
CVE-2025-40302 7.8 HIGH media: videobuf2: forbid remove_bufs when legacy fileio is active
CVE-2022-50623 7.8 HIGH fpga: prevent integer overflow in dfl_feature_ioctl_set_irq()
CVE-2023-53768 7.8 HIGH regmap-irq: Fix out-of-bounds access when allocating config buffers
CVE-2025-40317 7.8 HIGH regmap: slimbus: fix bus_context pointer in regmap init calls
CVE-2025-40290 7.8 HIGH xsk: avoid data corruption on cq descriptor number
CVE-2025-40319 7.8 HIGH bpf: Sync pending IRQ work before freeing ring buffer
CVE-2023-53747 7.8 HIGH vc_screen: reload load of struct vc_data pointer in vcs_write() to avoid UAF
CVE-2025-40323 7.8 HIGH fbcon: Set fb_display[i]->mode to NULL when the mode is released
CVE-2023-53753 7.8 HIGH drm/amd/display: fix mapping to non-allocated address
CVE-2023-53752 7.8 HIGH net: deal with integer overflows in kmalloc_reserve()
CVE-2025-40291 7.8 HIGH io_uring: fix regbuf vector size truncation
CVE-2023-53759 7.8 HIGH HID: hidraw: fix data race on device refcount

Showing top 20 of 82 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-53766

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