# CVE-2022-49847: net: ethernet: ti: am65-cpsw: Fix segmentation fault at module unload

Status: published. Published: 2025-05-01. Updated: 2026-11-05.

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]

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Linux / Linux: ≥ e8609e69470f369509b44d5f2619f94541fe9df6; < 442fd1bfe599bc54d118775e9e1a4fe913e4b369 (affected, git); ≥ e8609e69470f369509b44d5f2619f94541fe9df6; < 1a0c016a4831ea29be09bbc8162d4a2a0690b4b8 (affected, git). Source: CNA: Linux
- Linux / Linux: 5.18 (affected); ≥ 0; < 5.18 (unaffected, semver); ≥ 6.0.9; ≤ 6.0.* (unaffected, semver); ≥ 6.1; ≤ * (unaffected, original_commit_for_fix). Source: CNA: Linux

## Severity and prioritization

- CISA KEV: No listing in collected sources

- EPSS: 0.17% as of 2026-11-05; percentile 6.47%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: Not reported

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://git.kernel.org/stable/c/442fd1bfe599bc54d118775e9e1a4fe913e4b369 (CNA: Linux)

- https://git.kernel.org/stable/c/1a0c016a4831ea29be09bbc8162d4a2a0690b4b8 (CNA: Linux)

## Provenance

- CNA: Linux: https://www.cve.org/CVERecord?id=CVE-2022-49847; retrieved 2026-11-05; source updated 2026-11-05

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2022-49847; retrieved 2026-11-05; source updated Not reported

Revision: 670182b8262acbcac0246bbff1e72b5134eddcff88e15b3c2e02dfc23261382d

Canonical: https://y2.dev/cve/CVE-2022-49847

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