CVE-2022-49847— net: ethernet: ti: am65-cpsw: Fix segmentation fault at module unload
Quick assessment
Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
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am65-cpsw中模块卸载时顺序错误，可能导致分段错误。
Affected Version Matrix 6
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | e8609e69470f369509b44d5f2619f94541fe9df6< 442fd1bfe599bc54d118775e9e1a4fe913e4b369 |
affected |
e8609e69470f369509b44d5f2619f94541fe9df6< 1a0c016a4831ea29be09bbc8162d4a2a0690b4b8 |
affected | ||
5.18 |
affected | ||
< 5.18 |
unaffected | ||
6.0.9≤ 6.0.* |
unaffected | ||
6.1≤ * |
unaffected |
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I. Basic Information for CVE-2022-49847
Vulnerability Information
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Vulnerability Title
net: ethernet: ti: am65-cpsw: Fix segmentation fault at module unload
Source: CVE Program / CVE List V5
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]
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
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am65-cpsw中模块卸载时顺序错误，可能导致分段错误。
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-2022-49847
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2022-49847 (2)
Same Patch Batch · Linux · 2025-05-01 · 245 CVEs total
| CVE-2025-37750 | 9.8 CRITICAL | smb: client: fix UAF in decryption with multichannel |
| CVE-2025-37778 | 9.8 CRITICAL | ksmbd: Fix dangling pointer in krb_authenticate |
| CVE-2022-49770 | 9.8 CRITICAL | ceph: avoid putting the realm twice when decoding snaps fails |
| CVE-2022-49931 | 8.8 HIGH | IB/hfi1: Correctly move list in sc_disable() |
| CVE-2025-37776 | 8.8 HIGH | ksmbd: fix use-after-free in smb_break_all_levII_oplock() |
| CVE-2025-37777 | 8.8 HIGH | ksmbd: fix use-after-free in __smb2_lease_break_noti() |
| CVE-2025-37790 | 8.8 HIGH | net: mctp: Set SOCK_RCU_FREE |
| CVE-2022-49910 | 8.8 HIGH | Bluetooth: L2CAP: Fix use-after-free caused by l2cap_reassemble_sdu |
| CVE-2022-49886 | 8.4 HIGH | x86/tdx: Panic on bad configs that #VE on "private" memory access |
| CVE-2025-23159 | 8.4 HIGH | media: venus: hfi: add a check to handle OOB in sfr region |
| CVE-2025-37749 | 8.2 HIGH | net: ppp: Add bound checking for skb data on ppp_sync_txmung |
| CVE-2025-37774 | 7.8 HIGH | slab: ensure slab->obj_exts is clear in a newly allocated slab page |
| CVE-2025-37789 | 7.8 HIGH | net: openvswitch: fix nested key length validation in the set() action |
| CVE-2025-37779 | 7.8 HIGH | lib/iov_iter: fix to increase non slab folio refcount |
| CVE-2022-49920 | 7.8 HIGH | netfilter: nf_tables: netlink notifier might race to release objects |
| CVE-2022-49919 | 7.8 HIGH | netfilter: nf_tables: release flow rule object from commit path |
| CVE-2025-37756 | 7.8 HIGH | net: tls: explicitly disallow disconnect |
| CVE-2025-37761 | 7.8 HIGH | drm/xe: Fix an out-of-bounds shift when invalidating TLB |
| CVE-2025-37763 | 7.8 HIGH | drm/imagination: take paired job reference |
| CVE-2025-23141 | 7.8 HIGH | KVM: x86: Acquire SRCU in KVM_GET_MP_STATE to protect guest memory accesses |
Showing top 20 of 245 CVEs. View all on vendor page → →
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V. Comments for CVE-2022-49847
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