CVE-2024-44958— sched/smt: Fix unbalance sched_smt_present dec/inc
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I. Basic Information for CVE-2024-44958
Vulnerability Information
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Vulnerability Title
sched/smt: Fix unbalance sched_smt_present dec/inc
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: sched/smt: Fix unbalance sched_smt_present dec/inc I got the following warn report while doing stress test: jump label: negative count! WARNING: CPU: 3 PID: 38 at kernel/jump_label.c:263 static_key_slow_try_dec+0x9d/0xb0 Call Trace: <TASK> __static_key_slow_dec_cpuslocked+0x16/0x70 sched_cpu_deactivate+0x26e/0x2a0 cpuhp_invoke_callback+0x3ad/0x10d0 cpuhp_thread_fun+0x3f5/0x680 smpboot_thread_fn+0x56d/0x8d0 kthread+0x309/0x400 ret_from_fork+0x41/0x70 ret_from_fork_asm+0x1b/0x30 </TASK> Because when cpuset_cpu_inactive() fails in sched_cpu_deactivate(), the cpu offline failed, but sched_smt_present is decremented before calling sched_cpu_deactivate(), it leads to unbalanced dec/inc, so fix it by incrementing sched_smt_present in the error path.
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sched/smt组件存在调度SMT（同时多线程）状态统计不均衡的漏洞。
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-2024-44958
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Same Patch Batch · Linux · 2024-09-04 · 58 CVEs total
| CVE-2024-44991 | tcp: prevent concurrent execution of tcp_sk_exit_batch | |
| CVE-2024-45002 | rtla/osnoise: Prevent NULL dereference in error handling | |
| CVE-2024-45006 | xhci: Fix Panther point NULL pointer deref at full-speed re-enumeration | |
| CVE-2024-45004 | KEYS: trusted: dcp: fix leak of blob encryption key | |
| CVE-2024-45003 | vfs: Don't evict inode under the inode lru traversing context | |
| CVE-2024-45005 | KVM: s390: fix validity interception issue when gisa is switched off | |
| CVE-2024-44994 | iommu: Restore lost return in iommu_report_device_fault() | |
| CVE-2024-44993 | drm/v3d: Fix out-of-bounds read in `v3d_csd_job_run()` | |
| CVE-2024-44992 | smb/client: avoid possible NULL dereference in cifs_free_subrequest() | |
| CVE-2024-44990 | bonding: fix null pointer deref in bond_ipsec_offload_ok | |
| CVE-2024-44995 | net: hns3: fix a deadlock problem when config TC during resetting | |
| CVE-2024-44989 | bonding: fix xfrm real_dev null pointer dereference | |
| CVE-2024-44988 | net: dsa: mv88e6xxx: Fix out-of-bound access | |
| CVE-2024-44987 | ipv6: prevent UAF in ip6_send_skb() | |
| CVE-2024-44986 | ipv6: fix possible UAF in ip6_finish_output2() | |
| CVE-2024-44985 | ipv6: prevent possible UAF in ip6_xmit() | |
| CVE-2024-44983 | netfilter: flowtable: validate vlan header | |
| CVE-2024-44984 | bnxt_en: Fix double DMA unmapping for XDP_REDIRECT | |
| CVE-2024-44982 | drm/msm/dpu: cleanup FB if dpu_format_populate_layout fails | |
| CVE-2024-44981 | workqueue: Fix UBSAN 'subtraction overflow' error in shift_and_mask() |
Showing top 20 of 58 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
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