CVE-2022-50772
published 2025-12-24CVE-2022-50772: In the Linux kernel, the following vulnerability has been resolved: netdevsim: fix memory leak in nsim_bus_dev_new() If device_register() failed in…
PriorityP419medium5.5
EPSS
0.21%
11.0th percentile
In the Linux kernel, the following vulnerability has been resolved:
netdevsim: fix memory leak in nsim_bus_dev_new()
If device_register() failed in nsim_bus_dev_new(), the value of reference
in nsim_bus_dev->dev is 1. obj->name in nsim_bus_dev->dev will not be
released.
unreferenced object 0xffff88810352c480 (size 16):
comm "echo", pid 5691, jiffies 4294945921 (age 133.270s)
hex dump (first 16 bytes):
6e 65 74 64 65 76 73 69 6d 31 00 00 00 00 00 00 netdevsim1......
backtrace:
[] __kmalloc_node_track_caller+0x3a/0xb0
[] kvasprintf+0xc3/0x160
[] kvasprintf_const+0x55/0x180
[] kobject_set_name_vargs+0x56/0x150
[] dev_set_name+0xbb/0xf0
[] device_add+0x1f8/0x1cb0
[] new_device_store+0x3b6/0x5e0
[] bus_attr_store+0x72/0xa0
[] sysfs_kf_write+0x106/0x160
[] kernfs_fop_write_iter+0x3a8/0x5a0
[] vfs_write+0x8f0/0xc80
[] ksys_write+0x106/0x210
[] do_syscall_64+0x35/0x80
[] entry_SYSCALL_64_after_hwframe+0x46/0xb0
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.0.7-1 (bookworm) | linux 6.0.7-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 40e4fe4ce115c409c3e2fbb247085103ef1cc755 < 77579e4065295071fbd9662f03430dca5b50b086 | 77579e4065295071fbd9662f03430dca5b50b086 |
| linux | linux | >= 40e4fe4ce115c409c3e2fbb247085103ef1cc755 < cf2010aa1c739bab067cbc90b690d28eaa0b47da | cf2010aa1c739bab067cbc90b690d28eaa0b47da |
| linux | linux_kernel | >= 0 < 6.0.7-1 | 6.0.7-1 |
| linux | linux_kernel | >= 0 < 6.0.7-1 | 6.0.7-1 |
| linux | linux_kernel | >= 0 < 6.0.7-1 | 6.0.7-1 |
| linux | linux_kernel | >= 5.2.0 < 6.0.7 | 6.0.7 |
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GHSA
GHSA-mx2m-7wfj-355r: In the Linux kernel, the following vulnerability has been resolved:
netdevsim: fix memory leak in nsim_bus_dev_new()
If device_register() failed in
ghsa_unreviewed·2025-12-24
CVE-2022-50772 GHSA-mx2m-7wfj-355r: In the Linux kernel, the following vulnerability has been resolved:
netdevsim: fix memory leak in nsim_bus_dev_new()
If device_register() failed in
In the Linux kernel, the following vulnerability has been resolved:
netdevsim: fix memory leak in nsim_bus_dev_new()
If device_register() failed in nsim_bus_dev_new(), the value of reference
in nsim_bus_dev->dev is 1. obj->name in nsim_bus_dev->dev will not be
released.
unreferenced object 0xffff88810352c480 (size 16):
comm "echo", pid 5691, jiffies 4294945921 (age 133.270s)
hex dump (first 16 bytes):
6e 65 74 64 65 76 73 69 6d 31 00 00 00 00 00 00 netdevsim1......
backtrace:
[] __kmalloc_node_track_caller+0x3a/0xb0
[] kvasprintf+0xc3/0x160
[] kvasprintf_const+0x55/0x180
[] kobject_set_name_vargs+0x56/0x150
[] dev_set_name+0xbb/0xf0
[] device_add+0x1f8/0x1cb0
[] new_device_store+0x3b6/0x5e0
[] bus_attr_store+0x72/0xa0
[] sysfs_kf_write+0x106/0x160
[] kernfs_fop_write_iter+0x3a8/0x5a0
[]
OSV
netdevsim: fix memory leak in nsim_bus_dev_new()
osv·2025-12-24
CVE-2022-50772 netdevsim: fix memory leak in nsim_bus_dev_new()
netdevsim: fix memory leak in nsim_bus_dev_new()
In the Linux kernel, the following vulnerability has been resolved:
netdevsim: fix memory leak in nsim_bus_dev_new()
If device_register() failed in nsim_bus_dev_new(), the value of reference
in nsim_bus_dev->dev is 1. obj->name in nsim_bus_dev->dev will not be
released.
unreferenced object 0xffff88810352c480 (size 16):
comm "echo", pid 5691, jiffies 4294945921 (age 133.270s)
hex dump (first 16 bytes):
6e 65 74 64 65 76 73 69 6d 31 00 00 00 00 00 00 netdevsim1......
backtrace:
[] __kmalloc_node_track_caller+0x3a/0xb0
[] kvasprintf+0xc3/0x160
[] kvasprintf_const+0x55/0x180
[] kobject_set_name_vargs+0x56/0x150
[] dev_set_name+0xbb/0xf0
[] device_add+0x1f8/0x1cb0
[] new_device_store+0x3b6/0x5e0
[] bus_attr_store+0x72/0xa0
[] sysfs_kf_write+0
OSV
CVE-2022-50772: In the Linux kernel, the following vulnerability has been resolved: netdevsim: fix memory leak in nsim_bus_dev_new() If device_register() failed in ns
osv·2025-12-24
CVE-2022-50772 CVE-2022-50772: In the Linux kernel, the following vulnerability has been resolved: netdevsim: fix memory leak in nsim_bus_dev_new() If device_register() failed in ns
In the Linux kernel, the following vulnerability has been resolved: netdevsim: fix memory leak in nsim_bus_dev_new() If device_register() failed in nsim_bus_dev_new(), the value of reference in nsim_bus_dev->dev is 1. obj->name in nsim_bus_dev->dev will not be released. unreferenced object 0xffff88810352c480 (size 16): comm "echo", pid 5691, jiffies 4294945921 (age 133.270s) hex dump (first 16 bytes): 6e 65 74 64 65 76 73 69 6d 31 00 00 00 00 00 00 netdevsim1...... backtrace: [] __kmalloc_node_track_caller+0x3a/0xb0 [] kvasprintf+0xc3/0x160 [] kvasprintf_const+0x55/0x180 [] kobject_set_name_vargs+0x56/0x150 [] dev_set_name+0xbb/0xf0 [] device_add+0x1f8/0x1cb0 [] new_device_store+0x3b6/0x5e0 [] bus_attr_store+0x72/0xa0 [] sysfs_kf_write+0x106/0x160 [] kernfs_fop_write_iter+0x3a8/0x5a0 [] vf
Red Hat
kernel: Linux kernel: Denial of Service due to memory leak in netdevsim
vendor_redhat·2025-12-24·CVSS 5.5
CVE-2022-50772 [MEDIUM] CWE-772 kernel: Linux kernel: Denial of Service due to memory leak in netdevsim
kernel: Linux kernel: Denial of Service due to memory leak in netdevsim
In the Linux kernel, the following vulnerability has been resolved:
netdevsim: fix memory leak in nsim_bus_dev_new()
If device_register() failed in nsim_bus_dev_new(), the value of reference
in nsim_bus_dev->dev is 1. obj->name in nsim_bus_dev->dev will not be
released.
unreferenced object 0xffff88810352c480 (size 16):
comm "echo", pid 5691, jiffies 4294945921 (age 133.270s)
hex dump (first 16 bytes):
6e 65 74 64 65 76 73 69 6d 31 00 00 00 00 00 00 netdevsim1......
backtrace:
[] __kmalloc_node_track_caller+0x3a/0xb0
[] kvasprintf+0xc3/0x160
[] kvasprintf_const+0x55/0x180
[] kobject_set_name_vargs+0x56/0x150
[] dev_set_name+0xbb/0xf0
[] device_add+0x1f8/0x1cb0
[] new_device_store+0x3b6/0x5e0
[] bus_attr_store+0x72/0xa0
Debian
CVE-2022-50772: linux - In the Linux kernel, the following vulnerability has been resolved: netdevsim: ...
vendor_debian·2022
CVE-2022-50772 CVE-2022-50772: linux - In the Linux kernel, the following vulnerability has been resolved: netdevsim: ...
In the Linux kernel, the following vulnerability has been resolved: netdevsim: fix memory leak in nsim_bus_dev_new() If device_register() failed in nsim_bus_dev_new(), the value of reference in nsim_bus_dev->dev is 1. obj->name in nsim_bus_dev->dev will not be released. unreferenced object 0xffff88810352c480 (size 16): comm "echo", pid 5691, jiffies 4294945921 (age 133.270s) hex dump (first 16 bytes): 6e 65 74 64 65 76 73 69 6d 31 00 00 00 00 00 00 netdevsim1...... backtrace: [] __kmalloc_node_track_caller+0x3a/0xb0 [] kvasprintf+0xc3/0x160 [] kvasprintf_const+0x55/0x180 [] kobject_set_name_vargs+0x56/0x150 [] dev_set_name+0xbb/0xf0 [] device_add+0x1f8/0x1cb0 [] new_device_store+0x3b6/0x5e0 [] bus_attr_store+0x72/0xa0 [] sysfs_kf_write+0x106/0x160 [] kernfs_fop_write_iter+0x3a8/0x5a0 [] vf
No detection rules found.
No public exploits indexed.
Wiz
CVE-2022-50772 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz
CVE-2022-50772 CVE-2022-50772 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2022-50772 :
Linux Kernel vulnerability analysis and mitigation
In the Linux kernel, the following vulnerability has been resolved:
netdevsim: fix memory leak in nsim_bus_dev_new()
If device_register() failed in nsim_bus_dev_new(), the value of reference
in nsim_bus_dev->dev is 1. obj->name in nsim_bus_dev->dev will not be
released.
unreferenced object 0xffff88810352c480 (size 16):
comm "echo", pid 5691, jiffies 4294945921 (age 133.270s)
hex dump (first 16 bytes):
6e 65 74 64 65 76 73 69 6d 31 00 00 00 00 00 00 netdevsim1......
backtrace:
[] __kmalloc_node_track_caller+0x3a/0xb0
[] kvasprintf+0xc3/0x160
[] kvasprintf_const+0x55/0x180
[] kobject_set_name_vargs+0x56/0x150
[] dev_set_name+0xbb/0xf0
[] device_add+0x1f8/0x1cb0
[] new_device_store+0x3b6/0x5e0
[] bus_attr_store+0x72/0
Bugzilla
CVE-2022-50772 kernel: Linux kernel: Denial of Service due to memory leak in netdevsim
bugzilla·2025-12-24
CVE-2022-50772 [MEDIUM] CVE-2022-50772 kernel: Linux kernel: Denial of Service due to memory leak in netdevsim
CVE-2022-50772 kernel: Linux kernel: Denial of Service due to memory leak in netdevsim
In the Linux kernel, the following vulnerability has been resolved:
netdevsim: fix memory leak in nsim_bus_dev_new()
If device_register() failed in nsim_bus_dev_new(), the value of reference
in nsim_bus_dev->dev is 1. obj->name in nsim_bus_dev->dev will not be
released.
unreferenced object 0xffff88810352c480 (size 16):
comm "echo", pid 5691, jiffies 4294945921 (age 133.270s)
hex dump (first 16 bytes):
6e 65 74 64 65 76 73 69 6d 31 00 00 00 00 00 00 netdevsim1......
backtrace:
[] __kmalloc_node_track_caller+0x3a/0xb0
[] kvasprintf+0xc3/0x160
[] kvasprintf_const+0x55/0x180
[] kobject_set_name_vargs+0x56/0x150
[] dev_set_name+0xbb/0xf0
[] device_add+0x1f8/0x1cb0
[] new_device_store+0x3b6/0x5e0
[] bus_at
2025-12-24
Published