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CVE-2022-50077— apparmor: fix reference count leak in aa_pivotroot()

AI Predicted 3.7 Difficulty: Moderate EPSS 0.06% · P20

Affected Version Matrix 16

VendorProductVersion RangeStatus
LinuxLinux2ea3ffb7782a84da33a8382f13ebd016da50079b< d53194707d2a1851be027cd74266b96ceff799d3affected
2ea3ffb7782a84da33a8382f13ebd016da50079b< f4d5c7796571624e3f380b447ada52834270a287affected
2ea3ffb7782a84da33a8382f13ebd016da50079b< ef6fb6f0d0d8440595b45a7e53c6162c737177f4affected
2ea3ffb7782a84da33a8382f13ebd016da50079b< 2ceeb3296e9dde1d5772348046affcefdea605e2affected
2ea3ffb7782a84da33a8382f13ebd016da50079b< 64103ea357734b82384c925cba4758fdb909be0caffected
2ea3ffb7782a84da33a8382f13ebd016da50079b< 3ca40ad7afae144169a43988ef1a3f16182faf0aaffected
2ea3ffb7782a84da33a8382f13ebd016da50079b< 11c3627ec6b56c1525013f336f41b79a983b4d46affected
4.14affected
… +8 more rows
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I. Basic Information for CVE-2022-50077

Vulnerability Information
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Vulnerability Title
apparmor: fix reference count leak in aa_pivotroot()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: apparmor: fix reference count leak in aa_pivotroot() The aa_pivotroot() function has a reference counting bug in a specific path. When aa_replace_current_label() returns on success, the function forgets to decrement the reference count of “target”, which is increased earlier by build_pivotroot(), causing a reference leak. Fix it by decreasing the refcount of “target” in that 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apparmor在aa_pivotroot成功路径未减少target引用计数导致内存泄漏。
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 2ea3ffb7782a84da33a8382f13ebd016da50079b ~ d53194707d2a1851be027cd74266b96ceff799d3 -
LinuxLinux 4.14 -

II. Public POCs for CVE-2022-50077

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III. Intelligence Information for CVE-2022-50077

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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

V. Comments for CVE-2022-50077

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