CVE-2022-49907— net: mdio: fix undefined behavior in bit shift for __mdiobus_register
Possible ATT&CK Techniques 3AI
T1059 · Command and Scripting Interpreter T1068 · Exploitation for Privilege Escalation T1211 · Exploitation for StealthAffected Version Matrix 18
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 4fd5f812c23c7deee6425f4a318e85c317cd1d6c< 20ed01a7b9af6e6a3c33761eebbb710ea6dd49b7 | affected |
4fd5f812c23c7deee6425f4a318e85c317cd1d6c< 7006176a3c863e3e353ce1b8a349ef5bb1b9320e | affected | ||
4fd5f812c23c7deee6425f4a318e85c317cd1d6c< a3fafc974be37319679f36dc4e7cca7db1e02973 | affected | ||
4fd5f812c23c7deee6425f4a318e85c317cd1d6c< 4954b5359eb141499492fadfab891e28905509e2 | affected | ||
4fd5f812c23c7deee6425f4a318e85c317cd1d6c< 634f066d02bdb22a26da7deb0c7617ab1a65fc9d | affected | ||
4fd5f812c23c7deee6425f4a318e85c317cd1d6c< 985a88bf0b27193522bba7856b1763f428cef19d | affected | ||
4fd5f812c23c7deee6425f4a318e85c317cd1d6c< 6ce6f8f8f6316da6f92afe7490bc2f0b654d68e0 | affected | ||
4fd5f812c23c7deee6425f4a318e85c317cd1d6c< 40e4eb324c59e11fcb927aa46742d28aba6ecb8a | affected | ||
| … +10 more rows | |||
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I. Basic Information for CVE-2022-49907
Vulnerability Information
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Vulnerability Title
net: mdio: fix undefined behavior in bit shift for __mdiobus_register
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: mdio: fix undefined behavior in bit shift for __mdiobus_register Shifting signed 32-bit value by 31 bits is undefined, so changing significant bit to unsigned. The UBSAN warning calltrace like below: UBSAN: shift-out-of-bounds in drivers/net/phy/mdio_bus.c:586:27 left shift of 1 by 31 places cannot be represented in type 'int' Call Trace: <TASK> dump_stack_lvl+0x7d/0xa5 dump_stack+0x15/0x1b ubsan_epilogue+0xe/0x4e __ubsan_handle_shift_out_of_bounds+0x1e7/0x20c __mdiobus_register+0x49d/0x4e0 fixed_mdio_bus_init+0xd8/0x12d do_one_initcall+0x76/0x430 kernel_init_freeable+0x3b3/0x422 kernel_init+0x24/0x1e0 ret_from_fork+0x1f/0x30 </TASK>
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，该漏洞源于有符号位移导致未定义行为，可能导致UBSAN警告。
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-2022-49907
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2022-49907 (8)
Same Patch Batch · Linux · 2025-05-01 · 245 CVEs total
| CVE-2022-49852 | riscv: process: fix kernel info leakage | |
| CVE-2022-49836 | siox: fix possible memory leak in siox_device_add() | |
| CVE-2022-49837 | bpf: Fix memory leaks in __check_func_call | |
| CVE-2022-49838 | sctp: clear out_curr if all frag chunks of current msg are pruned | |
| CVE-2022-49840 | bpf, test_run: Fix alignment problem in bpf_prog_test_run_skb() | |
| CVE-2022-49839 | scsi: scsi_transport_sas: Fix error handling in sas_phy_add() | |
| CVE-2022-49841 | serial: imx: Add missing .thaw_noirq hook | |
| CVE-2022-49842 | ASoC: core: Fix use-after-free in snd_soc_exit() | |
| CVE-2022-49844 | can: dev: fix skb drop check | |
| CVE-2022-49845 | can: j1939: j1939_send_one(): fix missing CAN header initialization | |
| CVE-2022-49846 | udf: Fix a slab-out-of-bounds write bug in udf_find_entry() | |
| CVE-2022-49847 | net: ethernet: ti: am65-cpsw: Fix segmentation fault at module unload | |
| CVE-2022-49849 | btrfs: fix match incorrectly in dev_args_match_device | |
| CVE-2022-49848 | phy: qcom-qmp-combo: fix NULL-deref on runtime resume | |
| CVE-2022-49850 | nilfs2: fix deadlock in nilfs_count_free_blocks() | |
| CVE-2022-49851 | riscv: fix reserved memory setup | |
| CVE-2022-49863 | can: af_can: fix NULL pointer dereference in can_rx_register() | |
| CVE-2022-49862 | tipc: fix the msg->req tlv len check in tipc_nl_compat_name_table_dump_header | |
| CVE-2022-49864 | drm/amdkfd: Fix NULL pointer dereference in svm_migrate_to_ram() | |
| CVE-2022-49861 | dmaengine: mv_xor_v2: Fix a resource leak in mv_xor_v2_remove() |
Showing top 20 of 245 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-53366
ipv4: account for fraggap on the paged allocation path - CVE-2026-53365
vsock/virtio: fix zerocopy completion for multi-skb sends - CVE-2026-53364
Bluetooth: hci_conn: Fix memory leak in hci_le_big_terminate - CVE-2026-53363
xfrm: iptfs: preserve shared-frag marker in iptfs_consume_fr - CVE-2026-53362
ipv6: account for fraggap on the paged allocation path
Same vendor: Linux
- CVE-2026-53366
ipv4: account for fraggap on the paged allocation path - CVE-2026-53365
vsock/virtio: fix zerocopy completion for multi-skb sends - CVE-2026-53364
Bluetooth: hci_conn: Fix memory leak in hci_le_big_terminate - CVE-2026-53363
xfrm: iptfs: preserve shared-frag marker in iptfs_consume_fr - CVE-2026-53362
ipv6: account for fraggap on the paged allocation path
V. Comments for CVE-2022-49907
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