CVE-2023-52454: nvmet-tcp: Fix a kernel panic when host sends an invalid H2C PDU length
First published: Fri Feb 23 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: Fix a kernel panic when host sends an invalid H2C PDU length If the host sends an H2CData command with an invalid DATAL, the kernel may crash in nvmet_tcp_build_pdu_iovec(). Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 lr : nvmet_tcp_io_work+0x6ac/0x718 [nvmet_tcp] Call trace: process_one_work+0x174/0x3c8 worker_thread+0x2d0/0x3e8 kthread+0x104/0x110 Fix the bug by raising a fatal error if DATAL isn't coherent with the packet size. Also, the PDU length should never exceed the MAXH2CDATA parameter which has been communicated to the host in nvmet_tcp_handle_icreq().
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=5.0.0<5.4.268 | |
| Linux Kernel | >=5.5.0<5.10.209 | |
| Linux Kernel | >=5.11.0<5.15.148 | |
| Linux Kernel | >=5.16.0<6.1.75 | |
| Linux Kernel | >=6.2.0<6.6.14 | |
| Linux Kernel | >=6.7.0<6.7.2 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.119-1 6.12.10-1 6.12.11-1 |
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Reference Links
- https://git.kernel.org/stable/c/24e05760186dc070d3db190ca61efdbce23afc88
- https://git.kernel.org/stable/c/2871aa407007f6f531fae181ad252486e022df42
- https://git.kernel.org/stable/c/4cb3cf7177ae3666be7fb27d4ad4d72a295fb02d
- https://git.kernel.org/stable/c/70154e8d015c9b4fb56c1a2ef1fc8b83d45c7f68
- https://git.kernel.org/stable/c/ee5e7632e981673f42a50ade25e71e612e543d9d
- https://git.kernel.org/stable/c/efa56305908ba20de2104f1b8508c6a7401833be
- https://git.kernel.org/stable/c/f775f2621c2ac5cc3a0b3a64665dad4fb146e510
- https://launchpad.net/bugs/cve/CVE-2023-52454
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52454
- https://nvd.nist.gov/vuln/detail/CVE-2023-52454
- https://security-tracker.debian.org/tracker/CVE-2023-52454
- https://ubuntu.com/security/CVE-2023-52454
- https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
- https://git.kernel.org/linus/efa56305908ba20de2104f1b8508c6a7401833be
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