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CVE-2024-35985— sched/eevdf: Prevent vlag from going out of bounds in reweight_eevdf()

EPSS 0.02% · P5
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I. Basic Information for CVE-2024-35985

Vulnerability Information
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Vulnerability Title
sched/eevdf: Prevent vlag from going out of bounds in reweight_eevdf()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: sched/eevdf: Prevent vlag from going out of bounds in reweight_eevdf() It was possible to have pick_eevdf() return NULL, which then causes a NULL-deref. This turned out to be due to entity_eligible() returning falsely negative because of a s64 multiplcation overflow. Specifically, reweight_eevdf() computes the vlag without considering the limit placed upon vlag as update_entity_lag() does, and then the scaling multiplication (remember that weight is 20bit fixed point) can overflow. This then leads to the new vruntime being weird which then causes the above entity_eligible() to go side-ways and claim nothing is eligible. Thus limit the range of vlag accordingly. All this was quite rare, but fatal when it does happen.
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，该漏洞源于空指针取消引用。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 14204acc09f652169baed1141c671429047b1313 ~ 470d347b14b0ecffa9b39cf8f644fa2351db3efb -
LinuxLinux 6.7 -

II. Public POCs for CVE-2024-35985

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III. Intelligence Information for CVE-2024-35985

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Same Patch Batch · Linux · 2024-05-20 · 62 CVEs total

CVE-2024-35967Bluetooth: SCO: Fix not validating setsockopt user input
CVE-2024-35954scsi: sg: Avoid sg device teardown race
CVE-2024-35951drm/panfrost: Fix the error path in panfrost_mmu_map_fault_addr()
CVE-2024-35952drm/ast: Fix soft lockup
CVE-2024-35953accel/ivpu: Fix deadlock in context_xa
CVE-2024-35963Bluetooth: hci_sock: Fix not validating setsockopt user input
CVE-2024-35964Bluetooth: ISO: Fix not validating setsockopt user input
CVE-2024-35965Bluetooth: L2CAP: Fix not validating setsockopt user input
CVE-2024-35966Bluetooth: RFCOMM: Fix not validating setsockopt user input
CVE-2024-35968pds_core: Fix pdsc_check_pci_health function to use work thread
CVE-2024-35962netfilter: complete validation of user input
CVE-2024-35969ipv6: fix race condition between ipv6_get_ifaddr and ipv6_del_addr
CVE-2024-35971net: ks8851: Handle softirqs at the end of IRQ thread to fix hang
CVE-2024-35970af_unix: Clear stale u->oob_skb.
CVE-2024-35973geneve: fix header validation in geneve[6]_xmit_skb
CVE-2024-35972bnxt_en: Fix possible memory leak in bnxt_rdma_aux_device_init()
CVE-2024-35974block: fix q->blkg_list corruption during disk rebind
CVE-2024-35975octeontx2-pf: Fix transmit scheduler resource leak
CVE-2024-35976xsk: validate user input for XDP_{UMEM|COMPLETION}_FILL_RING
CVE-2024-35977platform/chrome: cros_ec_uart: properly fix race condition

Showing top 20 of 62 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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