CVE-2023-54264— fs/sysv: Null check to prevent null-ptr-deref bug
Possible ATT&CK Techniques 1AI
T1068 · Exploitation for Privilege EscalationAffected Version Matrix 18
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | e5657933863f43cc6bb76a54d659303dafaa9e58< e976988bc245ec3768cc0f76bed7d05488a7dd0f | affected |
e5657933863f43cc6bb76a54d659303dafaa9e58< baa60c66a310c50785289b0ede6fdce8ec3219c7 | affected | ||
e5657933863f43cc6bb76a54d659303dafaa9e58< 0a44ceba77c3267f8505dda102a59367dc24caee | affected | ||
e5657933863f43cc6bb76a54d659303dafaa9e58< 7f740bc696d4617f8ee44565e8ac0d36278a1e91 | affected | ||
e5657933863f43cc6bb76a54d659303dafaa9e58< afd9a31b5aa4b3747f382d44a7b03b7b5d0b7635 | affected | ||
e5657933863f43cc6bb76a54d659303dafaa9e58< 1416eebaad80bdc85ad9f97f27242011b031e2a9 | affected | ||
e5657933863f43cc6bb76a54d659303dafaa9e58< e28f376dd8dfcc4e880ac101184132bc08703f6e | affected | ||
e5657933863f43cc6bb76a54d659303dafaa9e58< ea2b62f305893992156a798f665847e0663c9f41 | affected | ||
| … +10 more rows | |||
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I. Basic Information for CVE-2023-54264
Vulnerability Information
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Vulnerability Title
fs/sysv: Null check to prevent null-ptr-deref bug
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: fs/sysv: Null check to prevent null-ptr-deref bug sb_getblk(inode->i_sb, parent) return a null ptr and taking lock on that leads to the null-ptr-deref bug.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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fs/sysv中未检查sb_getblk返回值，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
II. Public POCs for CVE-2023-54264
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2023-54264 (8)
Same Patch Batch · Linux · 2025-12-30 · 244 CVEs total
| CVE-2023-54265 | ipv6: Fix an uninit variable access bug in __ip6_make_skb() | |
| CVE-2023-54250 | ksmbd: avoid out of bounds access in decode_preauth_ctxt() | |
| CVE-2023-54249 | bus: mhi: ep: Only send -ENOTCONN status if client driver is available | |
| CVE-2023-54251 | net/sched: taprio: Limit TCA_TAPRIO_ATTR_SCHED_CYCLE_TIME to INT_MAX. | |
| CVE-2023-54253 | btrfs: set page extent mapped after read_folio in relocate_one_page | |
| CVE-2023-54252 | platform/x86: think-lmi: Fix memory leaks when parsing ThinkStation WMI strings | |
| CVE-2023-54254 | drm/ttm: Don't leak a resource on eviction error | |
| CVE-2023-54255 | sh: dma: Fix DMA channel offset calculation | |
| CVE-2023-54257 | net: macb: fix a memory corruption in extended buffer descriptor mode | |
| CVE-2023-54258 | cifs: fix potential oops in cifs_oplock_break | |
| CVE-2023-54259 | soundwire: bus: Fix unbalanced pm_runtime_put() causing usage count underflow | |
| CVE-2023-54260 | cifs: Fix lost destroy smbd connection when MR allocate failed | |
| CVE-2023-54261 | drm/amdkfd: Add missing gfx11 MQD manager callbacks | |
| CVE-2023-54262 | net/mlx5e: Don't clone flow post action attributes second time | |
| CVE-2023-54263 | drm/nouveau/kms/nv50-: init hpd_irq_lock for PIOR DP | |
| CVE-2023-54266 | media: dvb-usb: m920x: Fix a potential memory leak in m920x_i2c_xfer() | |
| CVE-2023-54275 | wifi: ath11k: Fix memory leak in ath11k_peer_rx_frag_setup | |
| CVE-2023-54276 | nfsd: move init of percpu reply_cache_stats counters back to nfsd_init_net | |
| CVE-2023-54278 | s390/vmem: split pages when debug pagealloc is enabled | |
| CVE-2023-54274 | RDMA/srpt: Add a check for valid 'mad_agent' pointer |
Showing top 20 of 244 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-53358
Bluetooth: L2CAP: use chan timer to close channels in cleanu - CVE-2026-53357
Bluetooth: fix UAF in l2cap_sock_cleanup_listen() vs l2cap_c - CVE-2026-53356
drm/i915/gem: Fix phys BO pread/pwrite with offset - CVE-2026-53355
net: rds: clear i_sends on setup unwind - CVE-2026-53354
arm64: errata: Mitigate TLBI errata on various Arm CPUs
Same vendor: Linux
- CVE-2026-53358
Bluetooth: L2CAP: use chan timer to close channels in cleanu - CVE-2026-53357
Bluetooth: fix UAF in l2cap_sock_cleanup_listen() vs l2cap_c - CVE-2026-53356
drm/i915/gem: Fix phys BO pread/pwrite with offset - CVE-2026-53355
net: rds: clear i_sends on setup unwind - CVE-2026-53354
arm64: errata: Mitigate TLBI errata on various Arm CPUs
V. Comments for CVE-2023-54264
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