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CVE-2022-49853— net: macvlan: fix memory leaks of macvlan_common_newlink

AI Predicted 5.3 Difficulty: Trivial EPSS 0.05% · P16

Affected Version Matrix 18

VendorProductVersion RangeStatus
LinuxLinuxaa5fd0fb77486b8a6764ead8627baa14790e4280< 9f288e338be206713d79b29144c27fca4503c39baffected
aa5fd0fb77486b8a6764ead8627baa14790e4280< 21d3a8b6a1e39e7529ce9de07316ee13a63f305baffected
aa5fd0fb77486b8a6764ead8627baa14790e4280< a81b44d1df1f07f00c0dcc0a0b3d2fa24a46289eaffected
aa5fd0fb77486b8a6764ead8627baa14790e4280< 685e73e3f7a9fb75cbf049a9d0b7c45cc6b57b2eaffected
aa5fd0fb77486b8a6764ead8627baa14790e4280< 956e0216a19994443c90ba2ea6b0b284c9c4f9cbaffected
aa5fd0fb77486b8a6764ead8627baa14790e4280< a8d67367ab33604326cc37ab44fd1801bf5691baaffected
aa5fd0fb77486b8a6764ead8627baa14790e4280< 9ea003c4671b2fc455320ecf6d4a43b0a3c1878aaffected
aa5fd0fb77486b8a6764ead8627baa14790e4280< 23569b5652ee8e8e55a12f7835f59af6f3cefc30affected
… +10 more rows
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I. Basic Information for CVE-2022-49853

Vulnerability Information
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Vulnerability Title
net: macvlan: fix memory leaks of macvlan_common_newlink
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: macvlan: fix memory leaks of macvlan_common_newlink kmemleak reports memory leaks in macvlan_common_newlink, as follows: ip link add link eth0 name .. type macvlan mode source macaddr add <MAC-ADDR> kmemleak reports: unreferenced object 0xffff8880109bb140 (size 64): comm "ip", pid 284, jiffies 4294986150 (age 430.108s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 b8 aa 5a 12 80 88 ff ff ..........Z..... 80 1b fa 0d 80 88 ff ff 1e ff ac af c7 c1 6b 6b ..............kk backtrace: [<ffffffff813e06a7>] kmem_cache_alloc_trace+0x1c7/0x300 [<ffffffff81b66025>] macvlan_hash_add_source+0x45/0xc0 [<ffffffff81b66a67>] macvlan_changelink_sources+0xd7/0x170 [<ffffffff81b6775c>] macvlan_common_newlink+0x38c/0x5a0 [<ffffffff81b6797e>] macvlan_newlink+0xe/0x20 [<ffffffff81d97f8f>] __rtnl_newlink+0x7af/0xa50 [<ffffffff81d98278>] rtnl_newlink+0x48/0x70 ... In the scenario where the macvlan mode is configured as 'source', macvlan_changelink_sources() will be execured to reconfigure list of remote source mac addresses, at the same time, if register_netdevice() return an error, the resource generated by macvlan_changelink_sources() is not cleaned up. Using this patch, in the case of an error, it will execute macvlan_flush_sources() to ensure that the resource is cleaned up.
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macvlan驱动中macvlan_common_newlink函数的内存泄漏问题。
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 aa5fd0fb77486b8a6764ead8627baa14790e4280 ~ 9f288e338be206713d79b29144c27fca4503c39b -
LinuxLinux 4.9 -

II. Public POCs for CVE-2022-49853

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III. Intelligence Information for CVE-2022-49853

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Patches & Fixes for CVE-2022-49853 (8)

Same Patch Batch · Linux · 2025-05-01 · 245 CVEs total

CVE-2022-49852riscv: process: fix kernel info leakage
CVE-2022-49836siox: fix possible memory leak in siox_device_add()
CVE-2022-49837bpf: Fix memory leaks in __check_func_call
CVE-2022-49838sctp: clear out_curr if all frag chunks of current msg are pruned
CVE-2022-49840bpf, test_run: Fix alignment problem in bpf_prog_test_run_skb()
CVE-2022-49839scsi: scsi_transport_sas: Fix error handling in sas_phy_add()
CVE-2022-49841serial: imx: Add missing .thaw_noirq hook
CVE-2022-49842ASoC: core: Fix use-after-free in snd_soc_exit()
CVE-2022-49844can: dev: fix skb drop check
CVE-2022-49845can: j1939: j1939_send_one(): fix missing CAN header initialization
CVE-2022-49846udf: Fix a slab-out-of-bounds write bug in udf_find_entry()
CVE-2022-49847net: ethernet: ti: am65-cpsw: Fix segmentation fault at module unload
CVE-2022-49849btrfs: fix match incorrectly in dev_args_match_device
CVE-2022-49848phy: qcom-qmp-combo: fix NULL-deref on runtime resume
CVE-2022-49850nilfs2: fix deadlock in nilfs_count_free_blocks()
CVE-2022-49851riscv: fix reserved memory setup
CVE-2022-49862tipc: fix the msg->req tlv len check in tipc_nl_compat_name_table_dump_header
CVE-2022-49864drm/amdkfd: Fix NULL pointer dereference in svm_migrate_to_ram()
CVE-2022-49865ipv6: addrlabel: fix infoleak when sending struct ifaddrlblmsg to network
CVE-2022-49863can: af_can: fix NULL pointer dereference in can_rx_register()

Showing top 20 of 245 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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