CVE-2024-26672— drm/amdgpu: Fix variable 'mca_funcs' dereferenced before NULL check in 'amdgpu_mca_smu_get_mca_entry()'
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I. Basic Information for CVE-2024-26672
Vulnerability Information
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Vulnerability Title
drm/amdgpu: Fix variable 'mca_funcs' dereferenced before NULL check in 'amdgpu_mca_smu_get_mca_entry()'
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix variable 'mca_funcs' dereferenced before NULL check in 'amdgpu_mca_smu_get_mca_entry()' Fixes the below: drivers/gpu/drm/amd/amdgpu/amdgpu_mca.c:377 amdgpu_mca_smu_get_mca_entry() warn: variable dereferenced before check 'mca_funcs' (see line 368) 357 int amdgpu_mca_smu_get_mca_entry(struct amdgpu_device *adev, enum amdgpu_mca_error_type type, 358 int idx, struct mca_bank_entry *entry) 359 { 360 const struct amdgpu_mca_smu_funcs *mca_funcs = adev->mca.mca_funcs; 361 int count; 362 363 switch (type) { 364 case AMDGPU_MCA_ERROR_TYPE_UE: 365 count = mca_funcs->max_ue_count; mca_funcs is dereferenced here. 366 break; 367 case AMDGPU_MCA_ERROR_TYPE_CE: 368 count = mca_funcs->max_ce_count; mca_funcs is dereferenced here. 369 break; 370 default: 371 return -EINVAL; 372 } 373 374 if (idx >= count) 375 return -EINVAL; 376 377 if (mca_funcs && mca_funcs->mca_get_mca_entry) ^^^^^^^^^ Checked too late!
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amdgpu_mca_smu_get_mca_entry（）存在安全漏洞。
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-2024-26672
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Same Patch Batch · Linux · 2024-04-02 · 35 CVEs total
| CVE-2024-26677 | rxrpc: Fix delayed ACKs to not set the reference serial number | |
| CVE-2023-52634 | drm/amd/display: Fix disable_otg_wa logic | |
| CVE-2023-52635 | PM / devfreq: Synchronize devfreq_monitor_[start/stop] | |
| CVE-2024-26671 | blk-mq: fix IO hang from sbitmap wakeup race | |
| CVE-2024-26673 | netfilter: nft_ct: sanitize layer 3 and 4 protocol number in custom expectations | |
| CVE-2023-52636 | libceph: just wait for more data to be available on the socket | |
| CVE-2024-26674 | x86/lib: Revert to _ASM_EXTABLE_UA() for {get,put}_user() fixups | |
| CVE-2024-26675 | ppp_async: limit MRU to 64K | |
| CVE-2024-26676 | af_unix: Call kfree_skb() for dead unix_(sk)->oob_skb in GC. | |
| CVE-2023-52633 | um: time-travel: fix time corruption | |
| CVE-2024-26678 | x86/efistub: Use 1:1 file:memory mapping for PE/COFF .compat section | |
| CVE-2024-26679 | inet: read sk->sk_family once in inet_recv_error() | |
| CVE-2024-26680 | net: atlantic: Fix DMA mapping for PTP hwts ring | |
| CVE-2024-26681 | netdevsim: avoid potential loop in nsim_dev_trap_report_work() | |
| CVE-2024-26682 | wifi: mac80211: improve CSA/ECSA connection refusal | |
| CVE-2024-26683 | wifi: cfg80211: detect stuck ECSA element in probe resp | |
| CVE-2024-26684 | net: stmmac: xgmac: fix handling of DPP safety error for DMA channels | |
| CVE-2024-26664 | hwmon: (coretemp) Fix out-of-bounds memory access | |
| CVE-2024-26657 | drm/sched: fix null-ptr-deref in init entity | |
| CVE-2023-52631 | fs/ntfs3: Fix an NULL dereference bug |
Showing top 20 of 35 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
Same vendor: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
V. Comments for CVE-2024-26672
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