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CVE-2022-50433— efi: ssdt: Don't free memory if ACPI table was loaded successfully

EPSS 0.02% · P6
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I. Basic Information for CVE-2022-50433

Vulnerability Information
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Vulnerability Title
efi: ssdt: Don't free memory if ACPI table was loaded successfully
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: efi: ssdt: Don't free memory if ACPI table was loaded successfully Amadeusz reports KASAN use-after-free errors introduced by commit 3881ee0b1edc ("efi: avoid efivars layer when loading SSDTs from variables"). The problem appears to be that the memory that holds the new ACPI table is now freed unconditionally, instead of only when the ACPI core reported a failure to load the table. So let's fix this, by omitting the kfree() on success.
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，该漏洞源于成功加载ACPI表后错误释放内存，可能导致释放后重用。
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 3881ee0b1edce0ece72d24b7c74f46b73bd6dcba ~ 11497fd69cd2282538ec6eb4cda1d16fc061233d -
LinuxLinux 6.0 -

II. Public POCs for CVE-2022-50433

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III. Intelligence Information for CVE-2022-50433

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Same Patch Batch · Linux · 2025-10-01 · 169 CVEs total

CVE-2022-50462MIPS: vpe-mt: fix possible memory leak while module exiting
CVE-2022-50452net: sched: cake: fix null pointer access issue when cake_init() fails
CVE-2022-50451fs/ntfs3: Fix memory leak on ntfs_fill_super() error path
CVE-2022-50453gpiolib: cdev: fix NULL-pointer dereferences
CVE-2022-50454drm/nouveau: fix a use-after-free in nouveau_gem_prime_import_sg_table()
CVE-2022-50457mtd: core: Fix refcount error in del_mtd_device()
CVE-2022-50456btrfs: fix resolving backrefs for inline extent followed by prealloc
CVE-2022-50458clk: tegra: Fix refcount leak in tegra210_clock_init
CVE-2022-50460cifs: Fix xid leak in cifs_flock()
CVE-2022-50459scsi: iscsi: iscsi_tcp: Fix null-ptr-deref while calling getpeername()
CVE-2022-50461net: ethernet: ti: am65-cpsw: Fix PM runtime leakage in am65_cpsw_nuss_ndo_slave_open()
CVE-2022-50467scsi: lpfc: Fix null ndlp ptr dereference in abnormal exit path for GFT_ID
CVE-2023-53488IB/hfi1: Fix possible panic during hotplug remove
CVE-2023-53489tcp/udp: Fix memleaks of sk and zerocopy skbs with TX timestamp.
CVE-2022-50469staging: rtl8723bs: fix potential memory leak in rtw_init_drv_sw()
CVE-2022-50468platform/chrome: cros_usbpd_notify: Fix error handling in cros_usbpd_notify_init()
CVE-2022-50465ext4: fix leaking uninitialized memory in fast-commit journal
CVE-2022-50463powerpc/52xx: Fix a resource leak in an error handling path
CVE-2022-50464mt76: mt7915: Fix PCI device refcount leak in mt7915_pci_init_hif2()
CVE-2022-50448mm/uffd: fix warning without PTE_MARKER_UFFD_WP compiled in

Showing top 20 of 169 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-50433

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