CVE-2023-54262
CVE.org · Publicado
- Status do registro
- Publicado
- Ano do identificador (não é o ano de publicação)
- 2023
- Publicação na fonte
- Atualização na fonte
- Importado pelo cveboard
- Snapshot da fonte
- cve_2026-10-24_midnight_baseline ·
Texto da CNA em inglês
net/mlx5e: Don't clone flow post action attributes second time
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Don't clone flow post action attributes second time The code already clones post action attributes in mlx5e_clone_flow_attr_for_post_act(). Creating another copy in mlx5e_tc_post_act_add() is a erroneous leftover from original implementation. Instead, assign handle->attribute to post_attr provided by the caller. Note that cloning the attribute second time is not just wasteful but also causes issues like second copy not being properly updated in neigh update code which leads to following use-after-free: Feb 21 09:02:00 c-237-177-40-045 kernel: BUG: KASAN: use-after-free in mlx5_cmd_set_fte+0x200d/0x24c0 [mlx5_core] Feb 21 09:02:00 c-237-177-40-045 kernel: kasan_report+0xbb/0x1a0 Feb 21 09:02:00 c-237-177-40-045 kernel: kasan_save_stack+0x1e/0x40 Feb 21 09:02:00 c-237-177-40-045 kernel: kasan_set_track+0x21/0x30 Feb 21 09:02:00 c-237-177-40-045 kernel: __kasan_kmalloc+0x7a/0x90 Feb 21 09:02:00 c-237-177-40-045 kernel: kasan_save_stack+0x1e/0x40 Feb 21 09:02:00 c-237-177-40-045 kernel: kasan_set_track+0x21/0x30 Feb 21 09:02:00 c-237-177-40-045 kernel: kasan_save_free_info+0x2a/0x40 Feb 21 09:02:00 c-237-177-40-045 kernel: ____kasan_slab_free+0x11a/0x1b0 Feb 21 09:02:00 c-237-177-40-045 kernel: page dumped because: kasan: bad access detected Feb 21 09:02:00 c-237-177-40-045 kernel: mlx5_core 0000:08:00.0: mlx5_cmd_out_err:803:(pid 8833): SET_FLOW_TABLE_ENTRY(0x936) op_mod(0x0) failed, status bad resource state(0x9), syndrome (0xf2ff71), err(-22) Feb 21 09:02:00 c-237-177-40-045 kernel: mlx5_core 0000:08:00.0 enp8s0f0: Failed to add post action rule Feb 21 09:02:00 c-237-177-40-045 kernel: mlx5_core 0000:08:00.0: mlx5e_tc_encap_flows_add:190:(pid 8833): Failed to update flow post acts, -22 Feb 21 09:02:00 c-237-177-40-045 kernel: Call Trace: Feb 21 09:02:00 c-237-177-40-045 kernel: <TASK> Feb 21 09:02:00 c-237-177-40-045 kernel: dump_stack_lvl+0x57/0x7d Feb 21 09:02:00 c-237-177-40-045 kernel: print_report+0x170/0x471 Feb 21 09:02:00 c-237-177-40-045 kernel: ? mlx5_cmd_set_fte+0x200d/0x24c0 [mlx5_core] Feb 21 09:02:00 c-237-177-40-045 kernel: kasan_report+0xbb/0x1a0 Feb 21 09:02:00 c-237-177-40-045 kernel: ? mlx5_cmd_set_fte+0x200d/0x24c0 [mlx5_core] Feb 21 09:02:00 c-237-177-40-045 kernel: mlx5_cmd_set_fte+0x200d/0x24c0 [mlx5_core] Feb 21 09:02:00 c-237-177-40-045 kernel: ? __module_address.part.0+0x62/0x200 Feb 21 09:02:00 c-237-177-40-045 kernel: ? mlx5_cmd_stub_create_flow_table+0xd0/0xd0 [mlx5_core] Feb 21 09:02:00 c-237-177-40-045 kernel: ? __raw_spin_lock_init+0x3b/0x110 Feb 21 09:02:00 c-237-177-40-045 kernel: mlx5_cmd_create_fte+0x80/0xb0 [mlx5_core] Feb 21 09:02:00 c-237-177-40-045 kernel: add_rule_fg+0xe80/0x19c0 [mlx5_core] -- Feb 21 09:02:00 c-237-177-40-045 kernel: Allocated by task 13476: Feb 21 09:02:00 c-237-177-40-045 kernel: kasan_save_stack+0x1e/0x40 Feb 21 09:02:00 c-237-177-40-045 kernel: kasan_set_track+0x21/0x30 Feb 21 09:02:00 c-237-177-40-045 kernel: __kasan_kmalloc+0x7a/0x90 Feb 21 09:02:00 c-237-177-40-045 kernel: mlx5_packet_reformat_alloc+0x7b/0x230 [mlx5_core] Feb 21 09:02:00 c-237-177-40-045 kernel: mlx5e_tc_tun_create_header_ipv4+0x977/0xf10 [mlx5_core] Feb 21 09:02:00 c-237-177-40-045 kernel: mlx5e_attach_encap+0x15b4/0x1e10 [mlx5_core] Feb 21 09:02:00 c-237-177-40-045 kernel: post_process_attr+0x305/0xa30 [mlx5_core] Feb 21 09:02:00 c-237-177-40-045 kernel: mlx5e_tc_add_fdb_flow+0x4c0/0xcf0 [mlx5_core] Feb 21 09:02:00 c-237-177-40-045 kernel: __mlx5e_add_fdb_flow+0x7cf/0xe90 [mlx5_core] Feb 21 09:02:00 c-237-177-40-045 kernel: mlx5e_configure_flower+0xcaa/0x4b90 [mlx5_core] Feb 21 09:02:00 c-237-177-40-045 kernel: mlx5e_rep_setup_tc_cls_flower+0x99/0x1b0 [mlx5_core] Feb 21 09:02:00 c-237-177-40-045 kernel: mlx5e_rep_setup_tc_cb+0x133/0x1e0 [mlx5_core] -- Feb 21 09:02:00 c-237-177-40-045 kernel: Freed by task 8833: Feb 21 09:02:00 c-237-177-40-045 kernel: kasan_save_s ---truncated---
Fatos de produtos e versões por escopo
Dados de correção desconhecidos; nenhuma versão corrigida é deduzida aqui. Dados ausentes não comprovam ausência de correção.
Exploração desconhecida; este catálogo não avalia exploração.
Linux
- Fornecedor
- Linux
- Produto
- Linux
- Plataformas
- Desconhecido
- Status padrão
unaffected
| Versão (version) | Status (status) | Esquema de versões (versionType) | Fim exclusivo (lessThan) | Fim inclusivo (lessThanOrEqual) | Mudanças de status (at → status) |
|---|---|---|---|---|---|
| 8300f225268be9ee2c0daf5a3f23929fcdcbf213 | affected | git | c382b693ffcb1f1ebf60d76ab9dedfe9ea13eedf | Indisponível | Nenhuma listada |
| 8300f225268be9ee2c0daf5a3f23929fcdcbf213 | affected | git | 8fd1dac646e6b08d03e3f1ad3c5b34255b1e08e8 | Indisponível | Nenhuma listada |
| 8300f225268be9ee2c0daf5a3f23929fcdcbf213 | affected | git | 2d57a514f9ab7d2d40f49b02d93edfcec8c78a9e | Indisponível | Nenhuma listada |
| 8300f225268be9ee2c0daf5a3f23929fcdcbf213 | affected | git | e9fce818fe003b6c527f25517b9ac08eb4661b5d | Indisponível | Nenhuma listada |
Linux
- Fornecedor
- Linux
- Produto
- Linux
- Plataformas
- Desconhecido
- Status padrão
affected
| Versão (version) | Status (status) | Esquema de versões (versionType) | Fim exclusivo (lessThan) | Fim inclusivo (lessThanOrEqual) | Mudanças de status (at → status) |
|---|---|---|---|---|---|
| 5.18 | affected | Indisponível | Indisponível | Indisponível | Nenhuma listada |
| 0 | unaffected | semver | 5.18 | Indisponível | Nenhuma listada |
| 6.1.28 | unaffected | semver | Indisponível | 6.1.* | Nenhuma listada |
| 6.2.15 | unaffected | semver | Indisponível | 6.2.* | Nenhuma listada |
| 6.3.2 | unaffected | semver | Indisponível | 6.3.* | Nenhuma listada |
| 6.4 | unaffected | original_commit_for_fix | Indisponível | * | Nenhuma listada |