CVE-2022-50724— regulator: core: fix resource leak in regulator_register()
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I. Basic Information for CVE-2022-50724
Vulnerability Information
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Vulnerability Title
regulator: core: fix resource leak in regulator_register()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: regulator: core: fix resource leak in regulator_register() I got some resource leak reports while doing fault injection test: OF: ERROR: memory leak, expected refcount 1 instead of 100, of_node_get()/of_node_put() unbalanced - destroy cset entry: attach overlay node /i2c/pmic@64/regulators/buck1 unreferenced object 0xffff88810deea000 (size 512): comm "490-i2c-rt5190a", pid 253, jiffies 4294859840 (age 5061.046s) hex dump (first 32 bytes): 00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00 .....N.......... ff ff ff ff ff ff ff ff a0 1e 00 a1 ff ff ff ff ................ backtrace: [<00000000d78541e2>] kmalloc_trace+0x21/0x110 [<00000000b343d153>] device_private_init+0x32/0xd0 [<00000000be1f0c70>] device_add+0xb2d/0x1030 [<00000000e3e6344d>] regulator_register+0xaf2/0x12a0 [<00000000e2f5e754>] devm_regulator_register+0x57/0xb0 [<000000008b898197>] rt5190a_probe+0x52a/0x861 [rt5190a_regulator] unreferenced object 0xffff88810b617b80 (size 32): comm "490-i2c-rt5190a", pid 253, jiffies 4294859904 (age 5060.983s) hex dump (first 32 bytes): 72 65 67 75 6c 61 74 6f 72 2e 32 38 36 38 2d 53 regulator.2868-S 55 50 50 4c 59 00 ff ff 29 00 00 00 2b 00 00 00 UPPLY...)...+... backtrace: [<000000009da9280d>] __kmalloc_node_track_caller+0x44/0x1b0 [<0000000025c6a4e5>] kstrdup+0x3a/0x70 [<00000000790efb69>] create_regulator+0xc0/0x4e0 [<0000000005ed203a>] regulator_resolve_supply+0x2d4/0x440 [<0000000045796214>] regulator_register+0x10b3/0x12a0 [<00000000e2f5e754>] devm_regulator_register+0x57/0xb0 [<000000008b898197>] rt5190a_probe+0x52a/0x861 [rt5190a_regulator] After calling regulator_resolve_supply(), the 'rdev->supply' is set by set_supply(), after this set, in the error path, the resources need be released, so call regulator_put() to avoid the leaks.
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regulator_register函数存在资源泄漏。
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
II. Public POCs for CVE-2022-50724
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Same Patch Batch · Linux · 2025-12-24 · 322 CVEs total
| CVE-2022-50755 | udf: Avoid double brelse() in udf_rename() | |
| CVE-2022-50765 | RISC-V: kexec: Fix memory leak of elf header buffer | |
| CVE-2022-50764 | ipv6/sit: use DEV_STATS_INC() to avoid data-races | |
| CVE-2022-50763 | crypto: marvell/octeontx - prevent integer overflows | |
| CVE-2022-50762 | fs/ntfs3: Avoid UBSAN error on true_sectors_per_clst() | |
| CVE-2022-50760 | drm/amdgpu: Fix PCI device refcount leak in amdgpu_atrm_get_bios() | |
| CVE-2022-50761 | x86/xen: Fix memory leak in xen_init_lock_cpu() | |
| CVE-2022-50759 | media: i2c: ov5648: Free V4L2 fwnode data on unbind | |
| CVE-2022-50758 | staging: vt6655: fix potential memory leak | |
| CVE-2022-50756 | nvme-pci: fix mempool alloc size | |
| CVE-2022-50757 | media: camss: Clean up received buffers on failed start of streaming | |
| CVE-2022-50749 | acct: fix potential integer overflow in encode_comp_t() | |
| CVE-2022-50746 | erofs: validate the extent length for uncompressed pclusters | |
| CVE-2022-50747 | hfs: Fix OOB Write in hfs_asc2mac | |
| CVE-2022-50748 | ipc: mqueue: fix possible memory leak in init_mqueue_fs() | |
| CVE-2022-50750 | drm/panel/panel-sitronix-st7701: Remove panel on DSI attach failure | |
| CVE-2022-50752 | md/raid5: Remove unnecessary bio_put() in raid5_read_one_chunk() | |
| CVE-2022-50753 | f2fs: fix to do sanity check on summary info | |
| CVE-2022-50754 | apparmor: fix a memleak in multi_transaction_new() | |
| CVE-2022-50766 | btrfs: set generation before calling btrfs_clean_tree_block in btrfs_init_new_buffer |
Showing top 20 of 322 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43500
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scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
Same vendor: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
V. Comments for CVE-2022-50724
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