CVE-2024-36891— maple_tree: fix mas_empty_area_rev() null pointer dereference
Affected Version Matrix 10
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 54a611b605901c7d5d05b6b8f5d04a6ceb0962aa< 883e5d542bbdddbddeba60250cb482baf3ae2415 | affected |
54a611b605901c7d5d05b6b8f5d04a6ceb0962aa< 6c9c7c1e63b198a8b979ad963eb21410f10ccb00 | affected | ||
54a611b605901c7d5d05b6b8f5d04a6ceb0962aa< f3956791cf526540addd3295e4c1e0f0442486cc | affected | ||
54a611b605901c7d5d05b6b8f5d04a6ceb0962aa< 955a923d2809803980ff574270f81510112be9cf | affected | ||
6.1 | affected | ||
< 6.1 | unaffected | ||
6.1.94≤ 6.1.* | unaffected | ||
6.6.31≤ 6.6.* | unaffected | ||
| … +2 more rows | |||
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I. Basic Information for CVE-2024-36891
Vulnerability Information
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Vulnerability Title
maple_tree: fix mas_empty_area_rev() null pointer dereference
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: maple_tree: fix mas_empty_area_rev() null pointer dereference Currently the code calls mas_start() followed by mas_data_end() if the maple state is MA_START, but mas_start() may return with the maple state node == NULL. This will lead to a null pointer dereference when checking information in the NULL node, which is done in mas_data_end(). Avoid setting the offset if there is no node by waiting until after the maple state is checked for an empty or single entry state. A user could trigger the events to cause a kernel oops by unmapping all vmas to produce an empty maple tree, then mapping a vma that would cause the scenario described above.
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maple_tree模块中mas_empty_area_rev()函数中的空指针取消引用问题。
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
II. Public POCs for CVE-2024-36891
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Linux · 2024-05-30 · 93 CVEs total
| CVE-2024-36927 | ipv4: Fix uninit-value access in __ip_make_skb() | |
| CVE-2024-36922 | wifi: iwlwifi: read txq->read_ptr under lock | |
| CVE-2024-36920 | scsi: mpi3mr: Avoid memcpy field-spanning write WARNING | |
| CVE-2024-36916 | blk-iocost: avoid out of bounds shift | |
| CVE-2024-36917 | block: fix overflow in blk_ioctl_discard() | |
| CVE-2024-36914 | drm/amd/display: Skip on writeback when it's not applicable | |
| CVE-2024-36915 | nfc: llcp: fix nfc_llcp_setsockopt() unsafe copies | |
| CVE-2024-36913 | Drivers: hv: vmbus: Leak pages if set_memory_encrypted() fails | |
| CVE-2024-36919 | scsi: bnx2fc: Remove spin_lock_bh while releasing resources after upload | |
| CVE-2024-36925 | swiotlb: initialise restricted pool list_head when SWIOTLB_DYNAMIC=y | |
| CVE-2024-36924 | scsi: lpfc: Release hbalock before calling lpfc_worker_wake_up() | |
| CVE-2024-36926 | powerpc/pseries/iommu: LPAR panics during boot up with a frozen PE | |
| CVE-2024-36928 | s390/qeth: Fix kernel panic after setting hsuid | |
| CVE-2024-36929 | net: core: reject skb_copy(_expand) for fraglist GSO skbs | |
| CVE-2024-36930 | spi: fix null pointer dereference within spi_sync | |
| CVE-2024-36932 | thermal/debugfs: Prevent use-after-free from occurring after cdev removal | |
| CVE-2024-36931 | s390/cio: Ensure the copied buf is NUL terminated | |
| CVE-2024-36933 | nsh: Restore skb->{protocol,data,mac_header} for outer header in nsh_gso_segment(). | |
| CVE-2024-36934 | bna: ensure the copied buf is NUL terminated | |
| CVE-2024-36935 | ice: ensure the copied buf is NUL terminated |
Showing top 20 of 93 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-46333
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ksmbd: validate inherited ACE SID length - CVE-2026-43489
liveupdate: luo_file: remember retrieve() status - CVE-2026-43487
ata: libata-core: Disable LPM on ST1000DM010-2EP102 - CVE-2026-43488
usb: xhci: Prevent interrupt storm on host controller error
Same vendor: Linux
- CVE-2026-46333
ptrace: slightly saner 'get_dumpable()' logic - CVE-2026-43490
ksmbd: validate inherited ACE SID length - CVE-2026-43489
liveupdate: luo_file: remember retrieve() status - CVE-2026-43487
ata: libata-core: Disable LPM on ST1000DM010-2EP102 - CVE-2026-43488
usb: xhci: Prevent interrupt storm on host controller error
V. Comments for CVE-2024-36891
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