CVE-2024-50127— net: sched: fix use-after-free in taprio_change()
Possible ATT&CK Techniques 1AI
T1564 · Hide ArtifactsAffected Version Matrix 16
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | a3d43c0d56f1b94e74963a2fbadfb70126d92213< 2f868ce6013548a713c431c679ef73747a66fcf3 | affected |
a3d43c0d56f1b94e74963a2fbadfb70126d92213< 8a283a19026aaae8a773fd8061263cfa315b127f | affected | ||
a3d43c0d56f1b94e74963a2fbadfb70126d92213< 999612996df28d81f163dad530d7f8026e03aec6 | affected | ||
a3d43c0d56f1b94e74963a2fbadfb70126d92213< fe371f084073e8672a2d7d46b335c3c060d1e301 | affected | ||
a3d43c0d56f1b94e74963a2fbadfb70126d92213< 0d4c0d2844e4eac3aed647f948fd7e60eea56a61 | affected | ||
a3d43c0d56f1b94e74963a2fbadfb70126d92213< 2240f9376f20f8b6463232b4ca7292569217237f | affected | ||
a3d43c0d56f1b94e74963a2fbadfb70126d92213< f504465970aebb2467da548f7c1efbbf36d0f44b | affected | ||
5.2 | affected | ||
| … +8 more rows | |||
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I. Basic Information for CVE-2024-50127
Vulnerability Information
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Vulnerability Title
net: sched: fix use-after-free in taprio_change()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: sched: fix use-after-free in taprio_change() In 'taprio_change()', 'admin' pointer may become dangling due to sched switch / removal caused by 'advance_sched()', and critical section protected by 'q->current_entry_lock' is too small to prevent from such a scenario (which causes use-after-free detected by KASAN). Fix this by prefer 'rcu_replace_pointer()' over 'rcu_assign_pointer()' to update 'admin' immediately before an attempt to schedule freeing.
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: sched模块在taprio_change函数中未能正确处理admin指针，可能导致释放后重用问题。
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-2024-50127
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2024-50127 (5)
Same Patch Batch · Linux · 2024-11-05 · 50 CVEs total
| CVE-2024-50106 | 9.8 CRITICAL | nfsd: fix race between laundromat and free_stateid |
| CVE-2024-50113 | 8.8 HIGH | firewire: core: fix invalid port index for parent device |
| CVE-2024-50115 | 8.4 HIGH | KVM: nSVM: Ignore nCR3[4:0] when loading PDPTEs from memory |
| CVE-2024-50125 | 8.0 HIGH | Bluetooth: SCO: Fix UAF on sco_sock_timeout |
| CVE-2024-50124 | 8.0 HIGH | Bluetooth: ISO: Fix UAF on iso_sock_timeout |
| CVE-2024-50132 | 7.8 HIGH | tracing/probes: Fix MAX_TRACE_ARGS limit handling |
| CVE-2023-52920 | 7.8 HIGH | bpf: support non-r10 register spill/fill to/from stack in precision tracking |
| CVE-2024-50091 | 7.8 HIGH | dm vdo: don't refer to dedupe_context after releasing it |
| CVE-2024-50101 | 7.8 HIGH | iommu/vt-d: Fix incorrect pci_for_each_dma_alias() for non-PCI devices |
| CVE-2024-50114 | 7.8 HIGH | KVM: arm64: Unregister redistributor for failed vCPU creation |
| CVE-2024-50126 | 7.8 HIGH | net: sched: use RCU read-side critical section in taprio_dump() |
| CVE-2024-50128 | 7.8 HIGH | net: wwan: fix global oob in wwan_rtnl_policy |
| CVE-2024-50130 | 7.8 HIGH | netfilter: bpf: must hold reference on net namespace |
| CVE-2024-50090 | 7.8 HIGH | drm/xe/oa: Fix overflow in oa batch buffer |
| CVE-2024-50094 | 7.5 HIGH | sfc: Don't invoke xdp_do_flush() from netpoll. |
| CVE-2024-50095 | 7.5 HIGH | RDMA/mad: Improve handling of timed out WRs of mad agent |
| CVE-2024-50099 | 7.3 HIGH | arm64: probes: Remove broken LDR (literal) uprobe support |
| CVE-2024-50096 | 7.3 HIGH | nouveau/dmem: Fix vulnerability in migrate_to_ram upon copy error |
| CVE-2024-50131 | 7.3 HIGH | tracing: Consider the NULL character when validating the event length |
| CVE-2024-50117 | 7.3 HIGH | drm/amd: Guard against bad data for ATIF ACPI method |
Showing top 20 of 50 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off - 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
Same vendor: Linux
- CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off - 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
V. Comments for CVE-2024-50127
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