CVE-2022-48652
ice: Fix crash by keep old cfg when update TCs more than queues
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
In the Linux kernel, the following vulnerability has been resolved:
ice: Fix crash by keep old cfg when update TCs more than queues
There are problems if allocated queues less than Traffic Classes.
Commit a632b2a4c920 ("ice: ethtool: Prohibit improper channel config
for DCB") already disallow setting less queues than TCs.
Another case is if we first set less queues, and later update more TCs
config due to LLDP, ice_vsi_cfg_tc() will failed but left dirty
num_txq/rxq and tc_cfg in vsi, that will cause invalid pointer access.
[ 95.968089] ice 0000:3b:00.1: More TCs defined than queues/rings allocated.
[ 95.968092] ice 0000:3b:00.1: Trying to use more Rx queues (8), than were allocated (1)!
[ 95.968093] ice 0000:3b:00.1: Failed to config TC for VSI index: 0
[ 95.969621] general protection fault: 0000 [#1] SMP NOPTI
[ 95.969705] CPU: 1 PID: 58405 Comm: lldpad Kdump: loaded Tainted: G U W O --------- -t - 4.18.0 #1
[ 95.969867] Hardware name: O.E.M/BC11SPSCB10, BIOS 8.23 12/30/2021
[ 95.969992] RIP: 0010:devm_kmalloc+0xa/0x60
[ 95.970052] Code: 5c ff ff ff 31 c0 5b 5d 41 5c c3 b8 f4 ff ff ff eb f4 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 89 d1 <8b> 97 60 02 00 00 48 8d 7e 18 48 39 f7 72 3f 55 89 ce 53 48 8b 4c
[ 95.970344] RSP: 0018:ffffc9003f553888 EFLAGS: 00010206
[ 95.970425] RAX: dead000000000200 RBX: ffffea003c425b00 RCX: 00000000006080c0
[ 95.970536] RDX: 00000000006080c0 RSI: 0000000000000200 RDI: dead000000000200
[ 95.970648] RBP: dead000000000200 R08: 00000000000463c0 R09: ffff888ffa900000
[ 95.970760] R10: 0000000000000000 R11: 0000000000000002 R12: ffff888ff6b40100
[ 95.970870] R13: ffff888ff6a55018 R14: 0000000000000000 R15: ffff888ff6a55460
[ 95.970981] FS: 00007f51b7d24700(0000) GS:ffff88903ee80000(0000) knlGS:0000000000000000
[ 95.971108] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 95.971197] CR2: 00007fac5410d710 CR3: 0000000f2c1de002 CR4: 00000000007606e0
[ 95.971309] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 95.971419] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 95.971530] PKRU: 55555554
[ 95.971573] Call Trace:
[ 95.971622] ice_setup_rx_ring+0x39/0x110 [ice]
[ 95.971695] ice_vsi_setup_rx_rings+0x54/0x90 [ice]
[ 95.971774] ice_vsi_open+0x25/0x120 [ice]
[ 95.971843] ice_open_internal+0xb8/0x1f0 [ice]
[ 95.971919] ice_ena_vsi+0x4f/0xd0 [ice]
[ 95.971987] ice_dcb_ena_dis_vsi.constprop.5+0x29/0x90 [ice]
[ 95.972082] ice_pf_dcb_cfg+0x29a/0x380 [ice]
[ 95.972154] ice_dcbnl_setets+0x174/0x1b0 [ice]
[ 95.972220] dcbnl_ieee_set+0x89/0x230
[ 95.972279] ? dcbnl_ieee_del+0x150/0x150
[ 95.972341] dcb_doit+0x124/0x1b0
[ 95.972392] rtnetlink_rcv_msg+0x243/0x2f0
[ 95.972457] ? dcb_doit+0x14d/0x1b0
[ 95.972510] ? __kmalloc_node_track_caller+0x1d3/0x280
[ 95.972591] ? rtnl_calcit.isra.31+0x100/0x100
[ 95.972661] netlink_rcv_skb+0xcf/0xf0
[ 95.972720] netlink_unicast+0x16d/0x220
[ 95.972781] netlink_sendmsg+0x2ba/0x3a0
[ 95.975891] sock_sendmsg+0x4c/0x50
[ 95.979032] ___sys_sendmsg+0x2e4/0x300
[ 95.982147] ? kmem_cache_alloc+0x13e/0x190
[ 95.985242] ? __wake_up_common_lock+0x79/0x90
[ 95.988338] ? __check_object_size+0xac/0x1b0
[ 95.991440] ? _copy_to_user+0x22/0x30
[ 95.994539] ? move_addr_to_user+0xbb/0xd0
[ 95.997619] ? __sys_sendmsg+0x53/0x80
[ 96.000664] __sys_sendmsg+0x53/0x80
[ 96.003747] do_syscall_64+0x5b/0x1d0
[ 96.006862] entry_SYSCALL_64_after_hwframe+0x65/0xca
Only update num_txq/rxq when passed check, and restore tc_cfg if setup
queue map failed.
En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ice: se corrige el fallo manteniendo cfg antiguo cuando se actualizan TC más que colas. Hay problemas si se asignan colas con menos clases de tráfico. el commit a632b2a4c920 ("ice: ethtool: Prohibir configuración de canal incorrecta para DCB") ya no permite configurar menos colas que los TC. Otro caso es si primero configuramos menos colas y luego actualizamos más configuraciones de TC debido a LLDP, ice_vsi_cfg_tc() fallará pero dejará num_txq/rxq y tc_cfg sucios en vsi, lo que provocará un acceso al puntero no válido. [ 95.968089] ice 0000:3b:00.1: Más TC definidos que colas/anillos asignados. [ 95.968092] ice 0000:3b:00.1: ¡Intentando utilizar más colas de Rx (8) de las asignadas (1)! [ 95.968093] ice 0000:3b:00.1: Error al configurar TC para índice VSI: 0 [ 95.969621] falla de protección general: 0000 [#1] SMP NOPTI [ 95.969705] CPU: 1 PID: 58405 Comm: lldpad Kdump: cargado Contaminado: GUWO --------- -t - 4.18.0 #1 [ 95.969867] Nombre de hardware: OEM/BC11SPSCB10, BIOS 8.23 30/12/2021 [ 95.969992] RIP: 0010:devm_kmalloc+0xa/0x60 [ 95.970052] Código: 5c ff ff ff 31 c0 5b 5d 41 5c c3 b8 f4 ff ff ff eb f4 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 89 d1 <8b> 97 0 02 00 00 48 8d 7e 18 48 39 f7 72 3f 55 89 ce 53 48 8b 4c [ 95.970344] RSP: 0018:ffffc9003f553888 EFLAGS: 00010206 [ 95.970425] RAX: muerto0000000 00200 RBX: ffffea003c425b00 RCX: 00000000006080c0 [ 95.970536] RDX: 00000000006080c0 RSI: 0000000000000200 RDI: muerto000000000200 [ 95.970648] RBP: muerto000000000200 R08: 00000000000463c0 R09: ffff888ffa900000 [ 95.970760] R10: 0000000000000000 R11: 00000000000002 R12: ffff888ff6b40100 [ 95.970870] R13: ffff888ff6a55018 R14: 0000000000000000 R15: ffff888ff6a55460 [ 95.970981] FS: 1b7d24700(0000) GS: ffff88903ee80000(0000) knlGS:00000000000000000 [ 95.971108] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 95.971197] CR2: 10 CR3: 0000000f2c1de002 CR4: 00000000007606e0 [ 95.971309] DR0: 0000000000000000 DR1: 00000000000000000 DR2: 0000000000000000 [ 95.971419 ] DR3 : 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 95.971530] PKRU: 55555554 [ 95.971573] Seguimiento de llamadas: [ 95.971622] x110 [hielo] [ 95.971695] ice_vsi_setup_rx_rings+0x54/0x90 [hielo] [ 95.971774] ice_vsi_open+0x25/0x120 [hielo] [ 95.971843] ice_open_internal+0xb8/0x1f0 [hielo] [ 95.971919] ice_ena_vsi+0x4f/0xd0 [hielo] [ 95.971987] ice_dcb_ena_dis_vsi.constprop.5+0x29/0x90 [hielo] [ 95.972082] f_dcb_cfg+0x29a/0x380 [hielo ] [ 95.972154] ice_dcbnl_setets+0x174/0x1b0 [hielo] [ 95.972220] dcbnl_ieee_set+0x89/0x230 [ 95.972279] ? dcbnl_ieee_del+0x150/0x150 [ 95.972341] dcb_doit+0x124/0x1b0 [ 95.972392] rtnetlink_rcv_msg+0x243/0x2f0 [ 95.972457] ? dcb_doit+0x14d/0x1b0 [95.972510]? __kmalloc_node_track_caller+0x1d3/0x280 [95.972591]? rtnl_calcit.isra.31+0x100/0x100 [ 95.972661] netlink_rcv_skb+0xcf/0xf0 [ 95.972720] netlink_unicast+0x16d/0x220 [ 95.972781] netlink_sendmsg+0x2ba/0x3a0 [ 95.975 891] sock_sendmsg+0x4c/0x50 [ 95.979032] ___sys_sendmsg+0x2e4/0x300 [ 95.982147] ? kmem_cache_alloc+0x13e/0x190 [95.985242]? __wake_up_common_lock+0x79/0x90 [95.988338]? __check_object_size+0xac/0x1b0 [ 95.991440] ? _copiar_al_usuario+0x22/0x30 [ 95.994539] ? move_addr_to_user+0xbb/0xd0 [95.997619]? __sys_sendmsg+0x53/0x80 [ 96.000664] __sys_sendmsg+0x53/0x80 [ 96.003747] do_syscall_64+0x5b/0x1d0 [ 96.006862] Entry_SYSCALL_64_after_hwframe+0x65/0xca Solo actualización num_txq/rxq cuando se pasa la verificación y restaura tc_cfg si falla el mapa de cola de configuración.
CVSS Scores
SSVC
- Decision:Track
Timeline
- 2024-02-25 CVE Reserved
- 2024-04-28 CVE Published
- 2024-04-29 EPSS Updated
- 2024-08-03 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (4)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/a632b2a4c920ce5af29410fb091f7ee6d2e77dc6 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/4520c4bf4dca7aa285f30cb1ca8c08c531bbf0e9 | Vuln. Introduced |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://git.kernel.org/stable/c/7c945e5b4787db47d728120b56c934ba05f99864 | 2022-09-28 | |
| https://git.kernel.org/stable/c/a509702cac95a8b450228a037c8542f57e538e5b | 2022-09-08 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.19 < 5.19.12 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.19 < 5.19.12" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.19 < 6.0 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.19 < 6.0" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 5.18.8 Search vendor "Linux" for product "Linux Kernel" and version "5.18.8" | en |
Affected
| ||||||