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CVE-2021-47600— dm btree remove: fix use after free in rebalance_children()

EPSS 0.02% · P5

Affected Version Matrix 18

VendorProductVersion RangeStatus
LinuxLinux3241b1d3e0aaafbfcd320f4d71ade629728cc4f4< a48f6a2bf33734ec5669ee03067dfb6c5b4818d6affected
3241b1d3e0aaafbfcd320f4d71ade629728cc4f4< 66ea642af6fd4eacb5d0271a922130fcf8700424affected
3241b1d3e0aaafbfcd320f4d71ade629728cc4f4< b03abd0aa09c05099f537cb05b8460c4298f0861affected
3241b1d3e0aaafbfcd320f4d71ade629728cc4f4< 293f957be5e39720778fb1851ced7f5fba6d51c3affected
3241b1d3e0aaafbfcd320f4d71ade629728cc4f4< 501ecd90efdc9b2edc6c28852ecd098a4adf8f00affected
3241b1d3e0aaafbfcd320f4d71ade629728cc4f4< 0e21e6cd5eebfc929ac5fa3b97ca2d4ace3cb6a3affected
3241b1d3e0aaafbfcd320f4d71ade629728cc4f4< 607beb420b3fe23b948a9bf447d993521a02fbbbaffected
3241b1d3e0aaafbfcd320f4d71ade629728cc4f4< 1b8d2789dad0005fd5e7d35dab26a8e1203fb6daaffected
… +10 more rows
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I. Basic Information for CVE-2021-47600

Vulnerability Information
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Vulnerability Title
dm btree remove: fix use after free in rebalance_children()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: dm btree remove: fix use after free in rebalance_children() Move dm_tm_unlock() after dm_tm_dec().
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dm btree remove rebalance_children()中存在释放后重用。
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 3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 ~ a48f6a2bf33734ec5669ee03067dfb6c5b4818d6 -
LinuxLinux 3.2 -

II. Public POCs for CVE-2021-47600

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III. Intelligence Information for CVE-2021-47600

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Same Patch Batch · Linux · 2024-06-19 · 122 CVEs total

CVE-2024-38612ipv6: sr: fix invalid unregister error path
CVE-2021-47584iocost: Fix divide-by-zero on donation from low hweight cgroup
CVE-2021-47582USB: core: Make do_proc_control() and do_proc_bulk() killable
CVE-2021-47583media: mxl111sf: change mutex_init() location
CVE-2021-47579ovl: fix warning in ovl_create_real()
CVE-2021-47580scsi: scsi_debug: Fix type in min_t to avoid stack OOB
CVE-2021-47578scsi: scsi_debug: Don't call kcalloc() if size arg is zero
CVE-2021-47576scsi: scsi_debug: Sanity check block descriptor length in resp_mode_select()
CVE-2021-47577io-wq: check for wq exit after adding new worker task_work
CVE-2024-38617kunit/fortify: Fix mismatched kvalloc()/vfree() usage
CVE-2024-38618ALSA: timer: Set lower bound of start tick time
CVE-2024-38616wifi: carl9170: re-fix fortified-memset warning
CVE-2024-38615cpufreq: exit() callback is optional
CVE-2024-38614openrisc: traps: Don't send signals to kernel mode threads
CVE-2024-38613m68k: Fix spinlock race in kernel thread creation
CVE-2024-38611media: i2c: et8ek8: Don't strip remove function when driver is builtin
CVE-2024-38603drivers/perf: hisi: hns3: Actually use devm_add_action_or_reset()
CVE-2024-38601ring-buffer: Fix a race between readers and resize checks
CVE-2024-38600ALSA: Fix deadlocks with kctl removals at disconnection
CVE-2024-38602ax25: Fix reference count leak issues of ax25_dev

Showing top 20 of 122 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2021-47600

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