CVE-2022-49847
TI Am65 CPSW Nuss Ethernet Segmentation Fault Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: net: ethernet: ti: am65-cpsw: Fix segmentation fault at module unload Move am65_cpsw_nuss_phylink_cleanup() call to after am65_cpsw_nuss_cleanup_ndev() so phylink is still valid to prevent the below Segmentation fault on module remove when first slave link is up. [ 31.652944] Unable to handle kernel paging request at virtual address 00040008000005f4 [ 31.684627] Mem abort info: [ 31.687446] ESR = 0x0000000096000004 [ 31.704614] EC = 0x25: DABT (current EL), IL = 32 bits [ 31.720663] SET = 0, FnV = 0 [ 31.723729] EA = 0, S1PTW = 0 [ 31.740617] FSC = 0x04: level 0 translation fault [ 31.756624] Data abort info: [ 31.759508] ISV = 0, ISS = 0x00000004 [ 31.776705] CM = 0, WnR = 0 [ 31.779695] [00040008000005f4] address between user and kernel address ranges [ 31.808644] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP [ 31.814928] Modules linked in: wlcore_sdio wl18xx wlcore mac80211 libarc4 cfg80211 rfkill crct10dif_ce phy_gmii_sel ti_am65_cpsw_nuss(-) sch_fq_codel ipv6 [ 31.828776] CPU: 0 PID: 1026 Comm: modprobe Not tainted 6.1.0-rc2-00012-gfabfcf7dafdb-dirty #160 [ 31.837547] Hardware name: Texas Instruments AM625 (DT) [ 31.842760] pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 31.849709] pc : phy_stop+0x18/0xf8 [ 31.853202] lr : phylink_stop+0x38/0xf8 [ 31.857031] sp : ffff80000a0839f0 [ 31.860335] x29: ffff80000a0839f0 x28: ffff000000de1c80 x27: 0000000000000000 [ 31.867462] x26: 0000000000000000 x25: 0000000000000000 x24: ffff80000a083b98 [ 31.874589] x23: 0000000000000800 x22: 0000000000000001 x21: ffff000001bfba90 [ 31.881715] x20: ffff0000015ee000 x19: 0004000800000200 x18: 0000000000000000 [ 31.888842] x17: ffff800076c45000 x16: ffff800008004000 x15: 000058e39660b106 [ 31.895969] x14: 0000000000000144 x13: 0000000000000144 x12: 0000000000000000 [ 31.903095] x11: 000000000000275f x10: 00000000000009e0 x9 : ffff80000a0837d0 [ 31.910222] x8 : ffff000000de26c0 x7 : ffff00007fbd6540 x6 : ffff00007fbd64c0 [ 31.917349] x5 : ffff00007fbd0b10 x4 : ffff00007fbd0b10 x3 : ffff00007fbd3920 [ 31.924476] x2 : d0a07fcff8b8d500 x1 : 0000000000000000 x0 : 0004000800000200 [ 31.931603] Call trace: [ 31.934042] phy_stop+0x18/0xf8 [ 31.937177] phylink_stop+0x38/0xf8 [ 31.940657] am65_cpsw_nuss_ndo_slave_stop+0x28/0x1e0 [ti_am65_cpsw_nuss] [ 31.947452] __dev_close_many+0xa4/0x140 [ 31.951371] dev_close_many+0x84/0x128 [ 31.955115] unregister_netdevice_many+0x130/0x6d0 [ 31.959897] unregister_netdevice_queue+0x94/0xd8 [ 31.964591] unregister_netdev+0x24/0x38 [ 31.968504] am65_cpsw_nuss_cleanup_ndev.isra.0+0x48/0x70 [ti_am65_cpsw_nuss] [ 31.975637] am65_cpsw_nuss_remove+0x58/0xf8 [ti_am65_cpsw_nuss]
INFO
Published Date :
May 1, 2025, 3:16 p.m.
Last Modified :
May 2, 2025, 1:53 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
Exploitability Score :
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2022-49847.
| URL | Resource |
|---|---|
| https://git.kernel.org/stable/c/1a0c016a4831ea29be09bbc8162d4a2a0690b4b8 | |
| https://git.kernel.org/stable/c/442fd1bfe599bc54d118775e9e1a4fe913e4b369 |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-49847 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-49847 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 01, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: net: ethernet: ti: am65-cpsw: Fix segmentation fault at module unload Move am65_cpsw_nuss_phylink_cleanup() call to after am65_cpsw_nuss_cleanup_ndev() so phylink is still valid to prevent the below Segmentation fault on module remove when first slave link is up. [ 31.652944] Unable to handle kernel paging request at virtual address 00040008000005f4 [ 31.684627] Mem abort info: [ 31.687446] ESR = 0x0000000096000004 [ 31.704614] EC = 0x25: DABT (current EL), IL = 32 bits [ 31.720663] SET = 0, FnV = 0 [ 31.723729] EA = 0, S1PTW = 0 [ 31.740617] FSC = 0x04: level 0 translation fault [ 31.756624] Data abort info: [ 31.759508] ISV = 0, ISS = 0x00000004 [ 31.776705] CM = 0, WnR = 0 [ 31.779695] [00040008000005f4] address between user and kernel address ranges [ 31.808644] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP [ 31.814928] Modules linked in: wlcore_sdio wl18xx wlcore mac80211 libarc4 cfg80211 rfkill crct10dif_ce phy_gmii_sel ti_am65_cpsw_nuss(-) sch_fq_codel ipv6 [ 31.828776] CPU: 0 PID: 1026 Comm: modprobe Not tainted 6.1.0-rc2-00012-gfabfcf7dafdb-dirty #160 [ 31.837547] Hardware name: Texas Instruments AM625 (DT) [ 31.842760] pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 31.849709] pc : phy_stop+0x18/0xf8 [ 31.853202] lr : phylink_stop+0x38/0xf8 [ 31.857031] sp : ffff80000a0839f0 [ 31.860335] x29: ffff80000a0839f0 x28: ffff000000de1c80 x27: 0000000000000000 [ 31.867462] x26: 0000000000000000 x25: 0000000000000000 x24: ffff80000a083b98 [ 31.874589] x23: 0000000000000800 x22: 0000000000000001 x21: ffff000001bfba90 [ 31.881715] x20: ffff0000015ee000 x19: 0004000800000200 x18: 0000000000000000 [ 31.888842] x17: ffff800076c45000 x16: ffff800008004000 x15: 000058e39660b106 [ 31.895969] x14: 0000000000000144 x13: 0000000000000144 x12: 0000000000000000 [ 31.903095] x11: 000000000000275f x10: 00000000000009e0 x9 : ffff80000a0837d0 [ 31.910222] x8 : ffff000000de26c0 x7 : ffff00007fbd6540 x6 : ffff00007fbd64c0 [ 31.917349] x5 : ffff00007fbd0b10 x4 : ffff00007fbd0b10 x3 : ffff00007fbd3920 [ 31.924476] x2 : d0a07fcff8b8d500 x1 : 0000000000000000 x0 : 0004000800000200 [ 31.931603] Call trace: [ 31.934042] phy_stop+0x18/0xf8 [ 31.937177] phylink_stop+0x38/0xf8 [ 31.940657] am65_cpsw_nuss_ndo_slave_stop+0x28/0x1e0 [ti_am65_cpsw_nuss] [ 31.947452] __dev_close_many+0xa4/0x140 [ 31.951371] dev_close_many+0x84/0x128 [ 31.955115] unregister_netdevice_many+0x130/0x6d0 [ 31.959897] unregister_netdevice_queue+0x94/0xd8 [ 31.964591] unregister_netdev+0x24/0x38 [ 31.968504] am65_cpsw_nuss_cleanup_ndev.isra.0+0x48/0x70 [ti_am65_cpsw_nuss] [ 31.975637] am65_cpsw_nuss_remove+0x58/0xf8 [ti_am65_cpsw_nuss] Added Reference https://git.kernel.org/stable/c/1a0c016a4831ea29be09bbc8162d4a2a0690b4b8 Added Reference https://git.kernel.org/stable/c/442fd1bfe599bc54d118775e9e1a4fe913e4b369
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-49847 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-49847
weaknesses.