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CVE-2022-49991— mm/hugetlb: avoid corrupting page->mapping in hugetlb_mcopy_atomic_pte

EPSS 0.05% · P15

Affected Version Matrix 8

VendorProductVersion RangeStatus
LinuxLinuxf619147104c8ea71e120e4936d2b68ec11a1e527< da60ddd80d09f8371fbba1a238a4b318d13ba698affected
f619147104c8ea71e120e4936d2b68ec11a1e527< 3ada1b3e58db255a14ec73a59d7913e84dc5a8a4affected
f619147104c8ea71e120e4936d2b68ec11a1e527< ab74ef708dc51df7cf2b8a890b9c6990fac5c0c6affected
5.13affected
< 5.13unaffected
5.15.65≤ 5.15.*unaffected
5.19.6≤ 5.19.*unaffected
6.0≤ *unaffected
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I. Basic Information for CVE-2022-49991

Vulnerability Information
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Vulnerability Title
mm/hugetlb: avoid corrupting page->mapping in hugetlb_mcopy_atomic_pte
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: avoid corrupting page->mapping in hugetlb_mcopy_atomic_pte In MCOPY_ATOMIC_CONTINUE case with a non-shared VMA, pages in the page cache are installed in the ptes. But hugepage_add_new_anon_rmap is called for them mistakenly because they're not vm_shared. This will corrupt the page->mapping used by page cache code.
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hugetlb_mcopy_atomic_pte中page->mapping损坏，可能导致非共享VMA错误。
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 f619147104c8ea71e120e4936d2b68ec11a1e527 ~ da60ddd80d09f8371fbba1a238a4b318d13ba698 -
LinuxLinux 5.13 -

II. Public POCs for CVE-2022-49991

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III. Intelligence Information for CVE-2022-49991

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Same Patch Batch · Linux · 2025-06-18 · 362 CVEs total

CVE-2022-50104powerpc/xive: Fix refcount leak in xive_get_max_prio
CVE-2022-50116tty: n_gsm: fix deadlock and link starvation in outgoing data path
CVE-2022-50114net: 9p: fix refcount leak in p9_read_work() error handling
CVE-2022-50113ASoc: audio-graph-card2: Fix refcount leak bug in __graph_get_type()
CVE-2022-50112rpmsg: qcom_smd: Fix refcount leak in qcom_smd_parse_edge
CVE-2022-50111ASoC: mt6359: Fix refcount leak bug
CVE-2022-50110watchdog: sp5100_tco: Fix a memory leak of EFCH MMIO resource
CVE-2022-50109video: fbdev: amba-clcd: Fix refcount leak bugs
CVE-2022-50108mfd: max77620: Fix refcount leak in max77620_initialise_fps
CVE-2022-50106powerpc/cell/axon_msi: Fix refcount leak in setup_msi_msg_address
CVE-2022-50107cifs: Fix memory leak when using fscache
CVE-2022-50105powerpc/spufs: Fix refcount leak in spufs_init_isolated_loader
CVE-2022-50099video: fbdev: arkfb: Check the size of screen before memset_io()
CVE-2022-50095posix-cpu-timers: Cleanup CPU timers before freeing them during exec
CVE-2022-50094spmi: trace: fix stack-out-of-bound access in SPMI tracing functions
CVE-2022-50096x86/kprobes: Update kcb status flag after singlestepping
CVE-2022-50097video: fbdev: s3fb: Check the size of screen before memset_io()
CVE-2022-50098scsi: qla2xxx: Fix crash due to stale SRB access around I/O timeouts
CVE-2022-50101video: fbdev: vt8623fb: Check the size of screen before memset_io()
CVE-2022-50103sched, cpuset: Fix dl_cpu_busy() panic due to empty cs->cpus_allowed

Showing top 20 of 362 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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