CVE-2024-36883— net: fix out-of-bounds access in ops_init
Possible ATT&CK Techniques 1AI
T1068 · Exploitation for Privilege EscalationAffected Version Matrix 22
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 073862ba5d249c20bd5c49fc6d904ff0e1f6a672< 3cdc34d76c4f777579e28ad373979d36c030cfd3 | affected |
073862ba5d249c20bd5c49fc6d904ff0e1f6a672< 7b0e64583eab8c1d896b47e5dd0bf2e7d86ec41f | affected | ||
073862ba5d249c20bd5c49fc6d904ff0e1f6a672< 0c3248bc708a7797be573214065cf908ff1f54c7 | affected | ||
073862ba5d249c20bd5c49fc6d904ff0e1f6a672< 9518b79bfd2fbf99fa9b7e8e36bcb1825e7ba030 | affected | ||
073862ba5d249c20bd5c49fc6d904ff0e1f6a672< 2d60ff5874aefd006717ca5e22ac1e25eac29c42 | affected | ||
073862ba5d249c20bd5c49fc6d904ff0e1f6a672< b6dbfd5bcc267a95a0bf1bf96af46243f96ec6cd | affected | ||
073862ba5d249c20bd5c49fc6d904ff0e1f6a672< f4f94587e1bf87cb40ec33955a9d90148dd026ab | affected | ||
073862ba5d249c20bd5c49fc6d904ff0e1f6a672< a26ff37e624d12e28077e5b24d2b264f62764ad6 | affected | ||
| … +14 more rows | |||
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I. Basic Information for CVE-2024-36883
Vulnerability Information
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Vulnerability Title
net: fix out-of-bounds access in ops_init
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: fix out-of-bounds access in ops_init net_alloc_generic is called by net_alloc, which is called without any locking. It reads max_gen_ptrs, which is changed under pernet_ops_rwsem. It is read twice, first to allocate an array, then to set s.len, which is later used to limit the bounds of the array access. It is possible that the array is allocated and another thread is registering a new pernet ops, increments max_gen_ptrs, which is then used to set s.len with a larger than allocated length for the variable array. Fix it by reading max_gen_ptrs only once in net_alloc_generic. If max_gen_ptrs is later incremented, it will be caught in net_assign_generic.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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 net 模块 ops_init 中的越界访问。
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-2024-36883
| # | POC Description | Source Link | Shenlong Link |
|---|
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Mailing List Discussions for CVE-2024-36883 (2)
Other References for CVE-2024-36883 (8)
Same Patch Batch · Linux · 2024-05-30 · 93 CVEs total
| CVE-2024-36958 | 9.8 CRITICAL | NFSD: Fix nfsd4_encode_fattr4() crasher |
| CVE-2024-36886 | 9.8 CRITICAL | tipc: fix UAF in error path |
| CVE-2024-36911 | 9.8 CRITICAL | hv_netvsc: Don't free decrypted memory |
| CVE-2024-36912 | 9.6 CRITICAL | Drivers: hv: vmbus: Track decrypted status in vmbus_gpadl |
| CVE-2024-36913 | 9.3 CRITICAL | Drivers: hv: vmbus: Leak pages if set_memory_encrypted() fails |
| CVE-2024-36909 | 9.3 CRITICAL | Drivers: hv: vmbus: Don't free ring buffers that couldn't be re-encrypted |
| CVE-2024-36922 | 8.8 HIGH | wifi: iwlwifi: read txq->read_ptr under lock |
| CVE-2024-36921 | 8.8 HIGH | wifi: iwlwifi: mvm: guard against invalid STA ID on removal |
| CVE-2024-36910 | 8.4 HIGH | uio_hv_generic: Don't free decrypted memory |
| CVE-2024-36032 | 8.1 HIGH | Bluetooth: qca: fix info leak when fetching fw build id |
| CVE-2024-36933 | 7.8 HIGH | nsh: Restore skb->{protocol,data,mac_header} for outer header in nsh_gso_segment(). |
| CVE-2024-36904 | 7.8 HIGH | tcp: Use refcount_inc_not_zero() in tcp_twsk_unique(). |
| CVE-2024-36914 | 7.8 HIGH | drm/amd/display: Skip on writeback when it's not applicable |
| CVE-2024-36918 | 7.8 HIGH | bpf: Check bloom filter map value size |
| CVE-2024-36018 | 7.8 HIGH | nouveau/uvmm: fix addr/range calcs for remap operations |
| CVE-2024-36894 | 7.8 HIGH | usb: gadget: f_fs: Fix race between aio_cancel() and AIO request complete |
| CVE-2024-36890 | 7.8 HIGH | mm/slab: make __free(kfree) accept error pointers |
| CVE-2024-36940 | 7.8 HIGH | pinctrl: core: delete incorrect free in pinctrl_enable() |
| CVE-2024-36928 | 7.8 HIGH | s390/qeth: Fix kernel panic after setting hsuid |
| CVE-2024-36884 | 7.8 HIGH | iommu/arm-smmu: Use the correct type in nvidia_smmu_context_fault() |
Showing top 20 of 93 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev - CVE-2026-74575
thunderbolt: Prevent XDomain delayed work use-after-free on
Same vendor: Linux
- CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev - CVE-2026-74575
thunderbolt: Prevent XDomain delayed work use-after-free on
V. Comments for CVE-2024-36883
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