CVE-2023-52637 (GCVE-0-2023-52637)
Vulnerability from cvelistv5 – Published: 2024-04-03 14:54 – Updated: 2026-08-05 09:10
VLAI
EPSS
VEX
Title
can: j1939: Fix UAF in j1939_sk_match_filter during setsockopt(SO_J1939_FILTER)
Summary
In the Linux kernel, the following vulnerability has been resolved:
can: j1939: Fix UAF in j1939_sk_match_filter during setsockopt(SO_J1939_FILTER)
Lock jsk->sk to prevent UAF when setsockopt(..., SO_J1939_FILTER, ...)
modifies jsk->filters while receiving packets.
Following trace was seen on affected system:
==================================================================
BUG: KASAN: slab-use-after-free in j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939]
Read of size 4 at addr ffff888012144014 by task j1939/350
CPU: 0 PID: 350 Comm: j1939 Tainted: G W OE 6.5.0-rc5 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014
Call Trace:
print_report+0xd3/0x620
? kasan_complete_mode_report_info+0x7d/0x200
? j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939]
kasan_report+0xc2/0x100
? j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939]
__asan_load4+0x84/0xb0
j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939]
j1939_sk_recv+0x20b/0x320 [can_j1939]
? __kasan_check_write+0x18/0x20
? __pfx_j1939_sk_recv+0x10/0x10 [can_j1939]
? j1939_simple_recv+0x69/0x280 [can_j1939]
? j1939_ac_recv+0x5e/0x310 [can_j1939]
j1939_can_recv+0x43f/0x580 [can_j1939]
? __pfx_j1939_can_recv+0x10/0x10 [can_j1939]
? raw_rcv+0x42/0x3c0 [can_raw]
? __pfx_j1939_can_recv+0x10/0x10 [can_j1939]
can_rcv_filter+0x11f/0x350 [can]
can_receive+0x12f/0x190 [can]
? __pfx_can_rcv+0x10/0x10 [can]
can_rcv+0xdd/0x130 [can]
? __pfx_can_rcv+0x10/0x10 [can]
__netif_receive_skb_one_core+0x13d/0x150
? __pfx___netif_receive_skb_one_core+0x10/0x10
? __kasan_check_write+0x18/0x20
? _raw_spin_lock_irq+0x8c/0xe0
__netif_receive_skb+0x23/0xb0
process_backlog+0x107/0x260
__napi_poll+0x69/0x310
net_rx_action+0x2a1/0x580
? __pfx_net_rx_action+0x10/0x10
? __pfx__raw_spin_lock+0x10/0x10
? handle_irq_event+0x7d/0xa0
__do_softirq+0xf3/0x3f8
do_softirq+0x53/0x80
</IRQ>
<TASK>
__local_bh_enable_ip+0x6e/0x70
netif_rx+0x16b/0x180
can_send+0x32b/0x520 [can]
? __pfx_can_send+0x10/0x10 [can]
? __check_object_size+0x299/0x410
raw_sendmsg+0x572/0x6d0 [can_raw]
? __pfx_raw_sendmsg+0x10/0x10 [can_raw]
? apparmor_socket_sendmsg+0x2f/0x40
? __pfx_raw_sendmsg+0x10/0x10 [can_raw]
sock_sendmsg+0xef/0x100
sock_write_iter+0x162/0x220
? __pfx_sock_write_iter+0x10/0x10
? __rtnl_unlock+0x47/0x80
? security_file_permission+0x54/0x320
vfs_write+0x6ba/0x750
? __pfx_vfs_write+0x10/0x10
? __fget_light+0x1ca/0x1f0
? __rcu_read_unlock+0x5b/0x280
ksys_write+0x143/0x170
? __pfx_ksys_write+0x10/0x10
? __kasan_check_read+0x15/0x20
? fpregs_assert_state_consistent+0x62/0x70
__x64_sys_write+0x47/0x60
do_syscall_64+0x60/0x90
? do_syscall_64+0x6d/0x90
? irqentry_exit+0x3f/0x50
? exc_page_fault+0x79/0xf0
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
Allocated by task 348:
kasan_save_stack+0x2a/0x50
kasan_set_track+0x29/0x40
kasan_save_alloc_info+0x1f/0x30
__kasan_kmalloc+0xb5/0xc0
__kmalloc_node_track_caller+0x67/0x160
j1939_sk_setsockopt+0x284/0x450 [can_j1939]
__sys_setsockopt+0x15c/0x2f0
__x64_sys_setsockopt+0x6b/0x80
do_syscall_64+0x60/0x90
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
Freed by task 349:
kasan_save_stack+0x2a/0x50
kasan_set_track+0x29/0x40
kasan_save_free_info+0x2f/0x50
__kasan_slab_free+0x12e/0x1c0
__kmem_cache_free+0x1b9/0x380
kfree+0x7a/0x120
j1939_sk_setsockopt+0x3b2/0x450 [can_j1939]
__sys_setsockopt+0x15c/0x2f0
__x64_sys_setsockopt+0x6b/0x80
do_syscall_64+0x60/0x90
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-04-03 17:45 UTC
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
9d71dd0c70099914fcd063135da3c580865e924c , < 08de58abedf6e69396e1207e4f99ef8904b2b532
(git)
Affected: 9d71dd0c70099914fcd063135da3c580865e924c , < 978e50ef8c38dc71bd14d1b0143d554ff5d188ba (git) Affected: 9d71dd0c70099914fcd063135da3c580865e924c , < 41ccb5bcbf03f02d820bc6ea8390811859f558f8 (git) Affected: 9d71dd0c70099914fcd063135da3c580865e924c , < 4dd684d4bb3cd5454e0bf6e2a1bdfbd5c9c872ed (git) Affected: 9d71dd0c70099914fcd063135da3c580865e924c , < f84e7534457dcd7835be743517c35378bb4e7c50 (git) Affected: 9d71dd0c70099914fcd063135da3c580865e924c , < fc74b9cb789cae061bbca7b203a3842e059f6b5d (git) Affected: 9d71dd0c70099914fcd063135da3c580865e924c , < efe7cf828039aedb297c1f9920b638fffee6aabc (git) |
guessed | |
| Linux | Linux |
Affected:
5.4
Unaffected: 0 , < 5.4 (semver) Unaffected: 5.4.269 , ≤ 5.4.* (semver) Unaffected: 5.10.210 , ≤ 5.10.* (semver) Unaffected: 5.15.149 , ≤ 5.15.* (semver) Unaffected: 6.1.79 , ≤ 6.1.* (semver) Unaffected: 6.6.18 , ≤ 6.6.* (semver) Unaffected: 6.7.6 , ≤ 6.7.* (semver) Unaffected: 6.8 , ≤ * (original_commit_for_fix) |
guessed |
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: j1939: Fix UAF in j1939_sk_match_filter during setsockopt(SO_J1939_FILTER)\n\nLock jsk-\u003esk to prevent UAF when setsockopt(..., SO_J1939_FILTER, ...)\nmodifies jsk-\u003efilters while receiving packets.\n\nFollowing trace was seen on affected system:\n ==================================================================\n BUG: KASAN: slab-use-after-free in j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939]\n Read of size 4 at addr ffff888012144014 by task j1939/350\n\n CPU: 0 PID: 350 Comm: j1939 Tainted: G W OE 6.5.0-rc5 #1\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014\n Call Trace:\n print_report+0xd3/0x620\n ? kasan_complete_mode_report_info+0x7d/0x200\n ? j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939]\n kasan_report+0xc2/0x100\n ? j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939]\n __asan_load4+0x84/0xb0\n j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939]\n j1939_sk_recv+0x20b/0x320 [can_j1939]\n ? __kasan_check_write+0x18/0x20\n ? __pfx_j1939_sk_recv+0x10/0x10 [can_j1939]\n ? j1939_simple_recv+0x69/0x280 [can_j1939]\n ? j1939_ac_recv+0x5e/0x310 [can_j1939]\n j1939_can_recv+0x43f/0x580 [can_j1939]\n ? __pfx_j1939_can_recv+0x10/0x10 [can_j1939]\n ? raw_rcv+0x42/0x3c0 [can_raw]\n ? __pfx_j1939_can_recv+0x10/0x10 [can_j1939]\n can_rcv_filter+0x11f/0x350 [can]\n can_receive+0x12f/0x190 [can]\n ? __pfx_can_rcv+0x10/0x10 [can]\n can_rcv+0xdd/0x130 [can]\n ? __pfx_can_rcv+0x10/0x10 [can]\n __netif_receive_skb_one_core+0x13d/0x150\n ? __pfx___netif_receive_skb_one_core+0x10/0x10\n ? __kasan_check_write+0x18/0x20\n ? _raw_spin_lock_irq+0x8c/0xe0\n __netif_receive_skb+0x23/0xb0\n process_backlog+0x107/0x260\n __napi_poll+0x69/0x310\n net_rx_action+0x2a1/0x580\n ? __pfx_net_rx_action+0x10/0x10\n ? __pfx__raw_spin_lock+0x10/0x10\n ? handle_irq_event+0x7d/0xa0\n __do_softirq+0xf3/0x3f8\n do_softirq+0x53/0x80\n \u003c/IRQ\u003e\n \u003cTASK\u003e\n __local_bh_enable_ip+0x6e/0x70\n netif_rx+0x16b/0x180\n can_send+0x32b/0x520 [can]\n ? __pfx_can_send+0x10/0x10 [can]\n ? __check_object_size+0x299/0x410\n raw_sendmsg+0x572/0x6d0 [can_raw]\n ? __pfx_raw_sendmsg+0x10/0x10 [can_raw]\n ? apparmor_socket_sendmsg+0x2f/0x40\n ? __pfx_raw_sendmsg+0x10/0x10 [can_raw]\n sock_sendmsg+0xef/0x100\n sock_write_iter+0x162/0x220\n ? __pfx_sock_write_iter+0x10/0x10\n ? __rtnl_unlock+0x47/0x80\n ? security_file_permission+0x54/0x320\n vfs_write+0x6ba/0x750\n ? __pfx_vfs_write+0x10/0x10\n ? __fget_light+0x1ca/0x1f0\n ? __rcu_read_unlock+0x5b/0x280\n ksys_write+0x143/0x170\n ? __pfx_ksys_write+0x10/0x10\n ? __kasan_check_read+0x15/0x20\n ? fpregs_assert_state_consistent+0x62/0x70\n __x64_sys_write+0x47/0x60\n do_syscall_64+0x60/0x90\n ? do_syscall_64+0x6d/0x90\n ? irqentry_exit+0x3f/0x50\n ? exc_page_fault+0x79/0xf0\n entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n\n Allocated by task 348:\n kasan_save_stack+0x2a/0x50\n kasan_set_track+0x29/0x40\n kasan_save_alloc_info+0x1f/0x30\n __kasan_kmalloc+0xb5/0xc0\n __kmalloc_node_track_caller+0x67/0x160\n j1939_sk_setsockopt+0x284/0x450 [can_j1939]\n __sys_setsockopt+0x15c/0x2f0\n __x64_sys_setsockopt+0x6b/0x80\n do_syscall_64+0x60/0x90\n entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n\n Freed by task 349:\n kasan_save_stack+0x2a/0x50\n kasan_set_track+0x29/0x40\n kasan_save_free_info+0x2f/0x50\n __kasan_slab_free+0x12e/0x1c0\n __kmem_cache_free+0x1b9/0x380\n kfree+0x7a/0x120\n j1939_sk_setsockopt+0x3b2/0x450 [can_j1939]\n __sys_setsockopt+0x15c/0x2f0\n __x64_sys_setsockopt+0x6b/0x80\n do_syscall_64+0x60/0x90\n entry_SYSCALL_64_after_hwframe+0x6e/0xd8"
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The UAF free of jsk-\u003efilters occurs only in local setsockopt(SO_J1939_FILTER) (or socket close); a remote CAN/J1939 peer can drive receive-side matching but cannot free the filter array, so the attack requires local syscall access.\nAC:L - The attacker fully controls both sides of the race\u2014concurrent SO_J1939_FILTER setsockopt threads to free/replace filters, plus AF_CAN raw sendmsg loopback (or bus traffic) to hit j1939_sk_match_filter in softirq\u2014so success does not depend on external conditions.\nPR:L - can_create()/j1939_sk_bind()/SO_J1939_FILTER impose no capability checks; on systems with an UP CAN/vcan device any unprivileged user can bind, and CAP_NET_ADMIN to create vcan is obtainable via unshare -Urn without real init-namespace root.\nUI:N - The attacker opens J1939/raw sockets, sets filters, and injects frames themselves; no separate victim action is required.\nS:U - Impact is a kernel slab use-after-free within the same host kernel authority (local privilege escalation), with no VM, IOMMU, or sandbox boundary crossed.\nC:H - This is a slab UAF of the attacker-sized j1939_filter array (up to 512 entries); reclaiming the freed object enables reading reclaimed kernel heap contents and arbitrary-read primitives.\nI:H - The same UAF is exploitable via heap spray of the freed filter allocation to obtain arbitrary write / control-flow hijacking primitives in the kernel.\nA:H - Triggering the race reliably produces slab-use-after-free reads in softirq (as shown by the KASAN report in j1939_sk_recv_match_one), causing kernel oops/panic even when not fully exploited."
}
]
}
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"url": "https://git.kernel.org/stable/c/978e50ef8c38dc71bd14d1b0143d554ff5d188ba"
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{
"url": "https://git.kernel.org/stable/c/efe7cf828039aedb297c1f9920b638fffee6aabc"
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],
"title": "can: j1939: Fix UAF in j1939_sk_match_filter during setsockopt(SO_J1939_FILTER)",
"x_generator": {
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"cveId": "CVE-2023-52637",
"datePublished": "2024-04-03T14:54:40.262Z",
"dateReserved": "2024-03-06T09:52:12.093Z",
"dateUpdated": "2026-08-05T09:10:50.061Z",
"state": "PUBLISHED"
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"date": "2026-09-18",
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: j1939: Fix UAF in j1939_sk_match_filter during setsockopt(SO_J1939_FILTER)\n\nLock jsk-\u003esk to prevent UAF when setsockopt(..., SO_J1939_FILTER, ...)\nmodifies jsk-\u003efilters while receiving packets.\n\nFollowing trace was seen on affected system:\n ==================================================================\n BUG: KASAN: slab-use-after-free in j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939]\n Read of size 4 at addr ffff888012144014 by task j1939/350\n\n CPU: 0 PID: 350 Comm: j1939 Tainted: G W OE 6.5.0-rc5 #1\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014\n Call Trace:\n print_report+0xd3/0x620\n ? kasan_complete_mode_report_info+0x7d/0x200\n ? j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939]\n kasan_report+0xc2/0x100\n ? j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939]\n __asan_load4+0x84/0xb0\n j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939]\n j1939_sk_recv+0x20b/0x320 [can_j1939]\n ? __kasan_check_write+0x18/0x20\n ? __pfx_j1939_sk_recv+0x10/0x10 [can_j1939]\n ? j1939_simple_recv+0x69/0x280 [can_j1939]\n ? j1939_ac_recv+0x5e/0x310 [can_j1939]\n j1939_can_recv+0x43f/0x580 [can_j1939]\n ? __pfx_j1939_can_recv+0x10/0x10 [can_j1939]\n ? raw_rcv+0x42/0x3c0 [can_raw]\n ? __pfx_j1939_can_recv+0x10/0x10 [can_j1939]\n can_rcv_filter+0x11f/0x350 [can]\n can_receive+0x12f/0x190 [can]\n ? __pfx_can_rcv+0x10/0x10 [can]\n can_rcv+0xdd/0x130 [can]\n ? __pfx_can_rcv+0x10/0x10 [can]\n __netif_receive_skb_one_core+0x13d/0x150\n ? __pfx___netif_receive_skb_one_core+0x10/0x10\n ? __kasan_check_write+0x18/0x20\n ? _raw_spin_lock_irq+0x8c/0xe0\n __netif_receive_skb+0x23/0xb0\n process_backlog+0x107/0x260\n __napi_poll+0x69/0x310\n net_rx_action+0x2a1/0x580\n ? __pfx_net_rx_action+0x10/0x10\n ? __pfx__raw_spin_lock+0x10/0x10\n ? handle_irq_event+0x7d/0xa0\n __do_softirq+0xf3/0x3f8\n do_softirq+0x53/0x80\n \u003c/IRQ\u003e\n \u003cTASK\u003e\n __local_bh_enable_ip+0x6e/0x70\n netif_rx+0x16b/0x180\n can_send+0x32b/0x520 [can]\n ? __pfx_can_send+0x10/0x10 [can]\n ? __check_object_size+0x299/0x410\n raw_sendmsg+0x572/0x6d0 [can_raw]\n ? __pfx_raw_sendmsg+0x10/0x10 [can_raw]\n ? apparmor_socket_sendmsg+0x2f/0x40\n ? __pfx_raw_sendmsg+0x10/0x10 [can_raw]\n sock_sendmsg+0xef/0x100\n sock_write_iter+0x162/0x220\n ? __pfx_sock_write_iter+0x10/0x10\n ? __rtnl_unlock+0x47/0x80\n ? security_file_permission+0x54/0x320\n vfs_write+0x6ba/0x750\n ? __pfx_vfs_write+0x10/0x10\n ? __fget_light+0x1ca/0x1f0\n ? __rcu_read_unlock+0x5b/0x280\n ksys_write+0x143/0x170\n ? __pfx_ksys_write+0x10/0x10\n ? __kasan_check_read+0x15/0x20\n ? fpregs_assert_state_consistent+0x62/0x70\n __x64_sys_write+0x47/0x60\n do_syscall_64+0x60/0x90\n ? do_syscall_64+0x6d/0x90\n ? irqentry_exit+0x3f/0x50\n ? exc_page_fault+0x79/0xf0\n entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n\n Allocated by task 348:\n kasan_save_stack+0x2a/0x50\n kasan_set_track+0x29/0x40\n kasan_save_alloc_info+0x1f/0x30\n __kasan_kmalloc+0xb5/0xc0\n __kmalloc_node_track_caller+0x67/0x160\n j1939_sk_setsockopt+0x284/0x450 [can_j1939]\n __sys_setsockopt+0x15c/0x2f0\n __x64_sys_setsockopt+0x6b/0x80\n do_syscall_64+0x60/0x90\n entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n\n Freed by task 349:\n kasan_save_stack+0x2a/0x50\n kasan_set_track+0x29/0x40\n kasan_save_free_info+0x2f/0x50\n __kasan_slab_free+0x12e/0x1c0\n __kmem_cache_free+0x1b9/0x380\n kfree+0x7a/0x120\n j1939_sk_setsockopt+0x3b2/0x450 [can_j1939]\n __sys_setsockopt+0x15c/0x2f0\n __x64_sys_setsockopt+0x6b/0x80\n do_syscall_64+0x60/0x90\n entry_SYSCALL_64_after_hwframe+0x6e/0xd8"
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: can: j1939: Reparar UAF en j1939_sk_match_filter durante setsockopt(SO_J1939_FILTER) Bloquear jsk-\u0026gt;sk para evitar UAF cuando setsockopt(..., SO_J1939_FILTER, ...) modifica jsk-\u0026gt; filtros mientras recibe paquetes. Se vio el siguiente rastro en el sistema afectado: ============================================ ======================== ERROR: KASAN: slab-use-after-free en j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939] Lectura de tama\u00f1o 4 en direcci\u00f3n ffff888012144014 por tarea j1939/350 CPU: 0 PID: 350 Comm: j1939 Contaminado: GW OE 6.5.0-rc5 #1 Nombre de hardware: PC est\u00e1ndar QEMU (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/ 01/2014 Seguimiento de llamadas: print_report+0xd3/0x620 ? kasan_complete_mode_report_info+0x7d/0x200 ? j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939] kasan_report+0xc2/0x100 ? j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939] __asan_load4+0x84/0xb0 j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939] j1939_sk_recv+0x20b/0x320 [can_j1939] ? __kasan_check_write+0x18/0x20? __pfx_j1939_sk_recv+0x10/0x10 [can_j1939] ? j1939_simple_recv+0x69/0x280 [can_j1939] ? j1939_ac_recv+0x5e/0x310 [can_j1939] j1939_can_recv+0x43f/0x580 [can_j1939] ? __pfx_j1939_can_recv+0x10/0x10 [can_j1939] ? raw_rcv+0x42/0x3c0 [puede_raw]? __pfx_j1939_can_recv+0x10/0x10 [can_j1939] can_rcv_filter+0x11f/0x350 [puede] can_receive+0x12f/0x190 [puede]? __pfx_can_rcv+0x10/0x10 [puede] can_rcv+0xdd/0x130 [puede] ? __pfx_can_rcv+0x10/0x10 [puede] __netif_receive_skb_one_core+0x13d/0x150 ? __pfx___netif_receive_skb_one_core+0x10/0x10 ? __kasan_check_write+0x18/0x20? _raw_spin_lock_irq+0x8c/0xe0 __netif_receive_skb+0x23/0xb0 Process_backlog+0x107/0x260 __napi_poll+0x69/0x310 net_rx_action+0x2a1/0x580 ? __pfx_net_rx_action+0x10/0x10 ? __pfx__raw_spin_lock+0x10/0x10? handle_irq_event+0x7d/0xa0 __do_softirq+0xf3/0x3f8 do_softirq+0x53/0x80 __local_bh_enable_ip+0x6e/0x70 netif_rx+0x16b/0x180 can_send+0x32b/0x520 [can] ? __pfx_can_send+0x10/0x10 [puede]? __check_object_size+0x299/0x410 raw_sendmsg+0x572/0x6d0 [can_raw]? __pfx_raw_sendmsg+0x10/0x10 [can_raw]? apparmor_socket_sendmsg+0x2f/0x40? __pfx_raw_sendmsg+0x10/0x10 [can_raw] sock_sendmsg+0xef/0x100 sock_write_iter+0x162/0x220 ? __pfx_sock_write_iter+0x10/0x10? __rtnl_unlock+0x47/0x80? permiso_archivo_seguridad+0x54/0x320 vfs_write+0x6ba/0x750 ? __pfx_vfs_write+0x10/0x10? __fget_light+0x1ca/0x1f0 ? __rcu_read_unlock+0x5b/0x280 ksys_write+0x143/0x170 ? __pfx_ksys_write+0x10/0x10? __kasan_check_read+0x15/0x20 ? fpregs_assert_state_consistent+0x62/0x70 __x64_sys_write+0x47/0x60 do_syscall_64+0x60/0x90 ? do_syscall_64+0x6d/0x90? irqentry_exit+0x3f/0x50? exc_page_fault+0x79/0xf0 Entry_SYSCALL_64_after_hwframe+0x6e/0xd8 Asignado por la tarea 348: kasan_save_stack+0x2a/0x50 kasan_set_track+0x29/0x40 kasan_save_alloc_info+0x1f/0x30 __kasan_kmalloc+0xb5/0xc0 __kmalloc_node_track_caller+0x67/0x160 j1939_sk_setsockopt+0x284/0x450 [can_j1939] __sys_setsockopt+ 0x15c/0x2f0 __x64_sys_setsockopt+0x6b/0x80 do_syscall_64+0x60/0x90 Entry_SYSCALL_64_after_hwframe+0x6e/0xd8 Liberado por la tarea 349: kasan_save_stack+0x2a/0x50 kasan_set_track+0x29/0x40 ka san_save_free_info+0x2f/0x50 __kasan_slab_free+0x12e/0x1c0 __kmem_cache_free+0x1b9/0x380 kfree+ 0x7a/0x120 j1939_sk_setsockopt+0x3b2/0x450 [can_j1939] __sys_setsockopt+0x15c/0x2f0 __x64_sys_setsockopt+0x6b/0x80 do_syscall_64+0x60/0x90 Entry_SYSCALL_64_after_h wframe+0x6e/0xd8"
}
],
"id": "CVE-2023-52637",
"lastModified": "2025-01-07T17:22:33.383",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2024-04-03T15:15:51.347",
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"tags": [
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"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-416"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
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]
},
"nvd": {
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"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
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"net/can/j1939/socket.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
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"status": "affected",
"version": "9d71dd0c70099914fcd063135da3c580865e924c",
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{
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{
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]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/can/j1939/j1939-priv.h",
"net/can/j1939/socket.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
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"version": "5.4"
},
{
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"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.269",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.210",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.149",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.79",
"versionType": "semver"
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{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: j1939: Fix UAF in j1939_sk_match_filter during setsockopt(SO_J1939_FILTER)\n\nLock jsk-\u003esk to prevent UAF when setsockopt(..., SO_J1939_FILTER, ...)\nmodifies jsk-\u003efilters while receiving packets.\n\nFollowing trace was seen on affected system:\n ==================================================================\n BUG: KASAN: slab-use-after-free in j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939]\n Read of size 4 at addr ffff888012144014 by task j1939/350\n\n CPU: 0 PID: 350 Comm: j1939 Tainted: G W OE 6.5.0-rc5 #1\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014\n Call Trace:\n print_report+0xd3/0x620\n ? kasan_complete_mode_report_info+0x7d/0x200\n ? j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939]\n kasan_report+0xc2/0x100\n ? j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939]\n __asan_load4+0x84/0xb0\n j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939]\n j1939_sk_recv+0x20b/0x320 [can_j1939]\n ? __kasan_check_write+0x18/0x20\n ? __pfx_j1939_sk_recv+0x10/0x10 [can_j1939]\n ? j1939_simple_recv+0x69/0x280 [can_j1939]\n ? j1939_ac_recv+0x5e/0x310 [can_j1939]\n j1939_can_recv+0x43f/0x580 [can_j1939]\n ? __pfx_j1939_can_recv+0x10/0x10 [can_j1939]\n ? raw_rcv+0x42/0x3c0 [can_raw]\n ? __pfx_j1939_can_recv+0x10/0x10 [can_j1939]\n can_rcv_filter+0x11f/0x350 [can]\n can_receive+0x12f/0x190 [can]\n ? __pfx_can_rcv+0x10/0x10 [can]\n can_rcv+0xdd/0x130 [can]\n ? __pfx_can_rcv+0x10/0x10 [can]\n __netif_receive_skb_one_core+0x13d/0x150\n ? __pfx___netif_receive_skb_one_core+0x10/0x10\n ? __kasan_check_write+0x18/0x20\n ? _raw_spin_lock_irq+0x8c/0xe0\n __netif_receive_skb+0x23/0xb0\n process_backlog+0x107/0x260\n __napi_poll+0x69/0x310\n net_rx_action+0x2a1/0x580\n ? __pfx_net_rx_action+0x10/0x10\n ? __pfx__raw_spin_lock+0x10/0x10\n ? handle_irq_event+0x7d/0xa0\n __do_softirq+0xf3/0x3f8\n do_softirq+0x53/0x80\n \u003c/IRQ\u003e\n \u003cTASK\u003e\n __local_bh_enable_ip+0x6e/0x70\n netif_rx+0x16b/0x180\n can_send+0x32b/0x520 [can]\n ? __pfx_can_send+0x10/0x10 [can]\n ? __check_object_size+0x299/0x410\n raw_sendmsg+0x572/0x6d0 [can_raw]\n ? __pfx_raw_sendmsg+0x10/0x10 [can_raw]\n ? apparmor_socket_sendmsg+0x2f/0x40\n ? __pfx_raw_sendmsg+0x10/0x10 [can_raw]\n sock_sendmsg+0xef/0x100\n sock_write_iter+0x162/0x220\n ? __pfx_sock_write_iter+0x10/0x10\n ? __rtnl_unlock+0x47/0x80\n ? security_file_permission+0x54/0x320\n vfs_write+0x6ba/0x750\n ? __pfx_vfs_write+0x10/0x10\n ? __fget_light+0x1ca/0x1f0\n ? __rcu_read_unlock+0x5b/0x280\n ksys_write+0x143/0x170\n ? __pfx_ksys_write+0x10/0x10\n ? __kasan_check_read+0x15/0x20\n ? fpregs_assert_state_consistent+0x62/0x70\n __x64_sys_write+0x47/0x60\n do_syscall_64+0x60/0x90\n ? do_syscall_64+0x6d/0x90\n ? irqentry_exit+0x3f/0x50\n ? exc_page_fault+0x79/0xf0\n entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n\n Allocated by task 348:\n kasan_save_stack+0x2a/0x50\n kasan_set_track+0x29/0x40\n kasan_save_alloc_info+0x1f/0x30\n __kasan_kmalloc+0xb5/0xc0\n __kmalloc_node_track_caller+0x67/0x160\n j1939_sk_setsockopt+0x284/0x450 [can_j1939]\n __sys_setsockopt+0x15c/0x2f0\n __x64_sys_setsockopt+0x6b/0x80\n do_syscall_64+0x60/0x90\n entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n\n Freed by task 349:\n kasan_save_stack+0x2a/0x50\n kasan_set_track+0x29/0x40\n kasan_save_free_info+0x2f/0x50\n __kasan_slab_free+0x12e/0x1c0\n __kmem_cache_free+0x1b9/0x380\n kfree+0x7a/0x120\n j1939_sk_setsockopt+0x3b2/0x450 [can_j1939]\n __sys_setsockopt+0x15c/0x2f0\n __x64_sys_setsockopt+0x6b/0x80\n do_syscall_64+0x60/0x90\n entry_SYSCALL_64_after_hwframe+0x6e/0xd8"
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: can: j1939: Reparar UAF en j1939_sk_match_filter durante setsockopt(SO_J1939_FILTER) Bloquear jsk-\u0026gt;sk para evitar UAF cuando setsockopt(..., SO_J1939_FILTER, ...) modifica jsk-\u0026gt; filtros mientras recibe paquetes. Se vio el siguiente rastro en el sistema afectado: ============================================ ======================== ERROR: KASAN: slab-use-after-free en j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939] Lectura de tama\u00f1o 4 en direcci\u00f3n ffff888012144014 por tarea j1939/350 CPU: 0 PID: 350 Comm: j1939 Contaminado: GW OE 6.5.0-rc5 #1 Nombre de hardware: PC est\u00e1ndar QEMU (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/ 01/2014 Seguimiento de llamadas: print_report+0xd3/0x620 ? kasan_complete_mode_report_info+0x7d/0x200 ? j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939] kasan_report+0xc2/0x100 ? j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939] __asan_load4+0x84/0xb0 j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939] j1939_sk_recv+0x20b/0x320 [can_j1939] ? __kasan_check_write+0x18/0x20? __pfx_j1939_sk_recv+0x10/0x10 [can_j1939] ? j1939_simple_recv+0x69/0x280 [can_j1939] ? j1939_ac_recv+0x5e/0x310 [can_j1939] j1939_can_recv+0x43f/0x580 [can_j1939] ? __pfx_j1939_can_recv+0x10/0x10 [can_j1939] ? raw_rcv+0x42/0x3c0 [puede_raw]? __pfx_j1939_can_recv+0x10/0x10 [can_j1939] can_rcv_filter+0x11f/0x350 [puede] can_receive+0x12f/0x190 [puede]? __pfx_can_rcv+0x10/0x10 [puede] can_rcv+0xdd/0x130 [puede] ? __pfx_can_rcv+0x10/0x10 [puede] __netif_receive_skb_one_core+0x13d/0x150 ? __pfx___netif_receive_skb_one_core+0x10/0x10 ? __kasan_check_write+0x18/0x20? _raw_spin_lock_irq+0x8c/0xe0 __netif_receive_skb+0x23/0xb0 Process_backlog+0x107/0x260 __napi_poll+0x69/0x310 net_rx_action+0x2a1/0x580 ? __pfx_net_rx_action+0x10/0x10 ? __pfx__raw_spin_lock+0x10/0x10? handle_irq_event+0x7d/0xa0 __do_softirq+0xf3/0x3f8 do_softirq+0x53/0x80 __local_bh_enable_ip+0x6e/0x70 netif_rx+0x16b/0x180 can_send+0x32b/0x520 [can] ? __pfx_can_send+0x10/0x10 [puede]? __check_object_size+0x299/0x410 raw_sendmsg+0x572/0x6d0 [can_raw]? __pfx_raw_sendmsg+0x10/0x10 [can_raw]? apparmor_socket_sendmsg+0x2f/0x40? __pfx_raw_sendmsg+0x10/0x10 [can_raw] sock_sendmsg+0xef/0x100 sock_write_iter+0x162/0x220 ? __pfx_sock_write_iter+0x10/0x10? __rtnl_unlock+0x47/0x80? permiso_archivo_seguridad+0x54/0x320 vfs_write+0x6ba/0x750 ? __pfx_vfs_write+0x10/0x10? __fget_light+0x1ca/0x1f0 ? __rcu_read_unlock+0x5b/0x280 ksys_write+0x143/0x170 ? __pfx_ksys_write+0x10/0x10? __kasan_check_read+0x15/0x20 ? fpregs_assert_state_consistent+0x62/0x70 __x64_sys_write+0x47/0x60 do_syscall_64+0x60/0x90 ? do_syscall_64+0x6d/0x90? irqentry_exit+0x3f/0x50? exc_page_fault+0x79/0xf0 Entry_SYSCALL_64_after_hwframe+0x6e/0xd8 Asignado por la tarea 348: kasan_save_stack+0x2a/0x50 kasan_set_track+0x29/0x40 kasan_save_alloc_info+0x1f/0x30 __kasan_kmalloc+0xb5/0xc0 __kmalloc_node_track_caller+0x67/0x160 j1939_sk_setsockopt+0x284/0x450 [can_j1939] __sys_setsockopt+ 0x15c/0x2f0 __x64_sys_setsockopt+0x6b/0x80 do_syscall_64+0x60/0x90 Entry_SYSCALL_64_after_hwframe+0x6e/0xd8 Liberado por la tarea 349: kasan_save_stack+0x2a/0x50 kasan_set_track+0x29/0x40 ka san_save_free_info+0x2f/0x50 __kasan_slab_free+0x12e/0x1c0 __kmem_cache_free+0x1b9/0x380 kfree+ 0x7a/0x120 j1939_sk_setsockopt+0x3b2/0x450 [can_j1939] __sys_setsockopt+0x15c/0x2f0 __x64_sys_setsockopt+0x6b/0x80 do_syscall_64+0x60/0x90 Entry_SYSCALL_64_after_h wframe+0x6e/0xd8"
}
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"id": "CVE-2023-52637",
"lastModified": "2026-08-04T10:18:36.063",
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"url": "https://git.kernel.org/stable/c/f84e7534457dcd7835be743517c35378bb4e7c50"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/fc74b9cb789cae061bbca7b203a3842e059f6b5d"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/efe7cf828039aedb297c1f9920b638fffee6aabc"
},
{
"tags": [
"x_transferred"
],
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-52637",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-04-03T17:45:26.968713Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-05-23T19:01:21.522Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/can/j1939/j1939-priv.h",
"net/can/j1939/socket.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "08de58abedf6e69396e1207e4f99ef8904b2b532",
"status": "affected",
"version": "9d71dd0c70099914fcd063135da3c580865e924c",
"versionType": "git"
},
{
"lessThan": "978e50ef8c38dc71bd14d1b0143d554ff5d188ba",
"status": "affected",
"version": "9d71dd0c70099914fcd063135da3c580865e924c",
"versionType": "git"
},
{
"lessThan": "41ccb5bcbf03f02d820bc6ea8390811859f558f8",
"status": "affected",
"version": "9d71dd0c70099914fcd063135da3c580865e924c",
"versionType": "git"
},
{
"lessThan": "4dd684d4bb3cd5454e0bf6e2a1bdfbd5c9c872ed",
"status": "affected",
"version": "9d71dd0c70099914fcd063135da3c580865e924c",
"versionType": "git"
},
{
"lessThan": "f84e7534457dcd7835be743517c35378bb4e7c50",
"status": "affected",
"version": "9d71dd0c70099914fcd063135da3c580865e924c",
"versionType": "git"
},
{
"lessThan": "fc74b9cb789cae061bbca7b203a3842e059f6b5d",
"status": "affected",
"version": "9d71dd0c70099914fcd063135da3c580865e924c",
"versionType": "git"
},
{
"lessThan": "efe7cf828039aedb297c1f9920b638fffee6aabc",
"status": "affected",
"version": "9d71dd0c70099914fcd063135da3c580865e924c",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/can/j1939/j1939-priv.h",
"net/can/j1939/socket.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.4"
},
{
"lessThan": "5.4",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.269",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.210",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.149",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.79",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.18",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.7.*",
"status": "unaffected",
"version": "6.7.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.8",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.269",
"versionStartIncluding": "5.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.210",
"versionStartIncluding": "5.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.149",
"versionStartIncluding": "5.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.79",
"versionStartIncluding": "5.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.18",
"versionStartIncluding": "5.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.7.6",
"versionStartIncluding": "5.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.8",
"versionStartIncluding": "5.4",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: j1939: Fix UAF in j1939_sk_match_filter during setsockopt(SO_J1939_FILTER)\n\nLock jsk-\u003esk to prevent UAF when setsockopt(..., SO_J1939_FILTER, ...)\nmodifies jsk-\u003efilters while receiving packets.\n\nFollowing trace was seen on affected system:\n ==================================================================\n BUG: KASAN: slab-use-after-free in j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939]\n Read of size 4 at addr ffff888012144014 by task j1939/350\n\n CPU: 0 PID: 350 Comm: j1939 Tainted: G W OE 6.5.0-rc5 #1\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014\n Call Trace:\n print_report+0xd3/0x620\n ? kasan_complete_mode_report_info+0x7d/0x200\n ? j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939]\n kasan_report+0xc2/0x100\n ? j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939]\n __asan_load4+0x84/0xb0\n j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939]\n j1939_sk_recv+0x20b/0x320 [can_j1939]\n ? __kasan_check_write+0x18/0x20\n ? __pfx_j1939_sk_recv+0x10/0x10 [can_j1939]\n ? j1939_simple_recv+0x69/0x280 [can_j1939]\n ? j1939_ac_recv+0x5e/0x310 [can_j1939]\n j1939_can_recv+0x43f/0x580 [can_j1939]\n ? __pfx_j1939_can_recv+0x10/0x10 [can_j1939]\n ? raw_rcv+0x42/0x3c0 [can_raw]\n ? __pfx_j1939_can_recv+0x10/0x10 [can_j1939]\n can_rcv_filter+0x11f/0x350 [can]\n can_receive+0x12f/0x190 [can]\n ? __pfx_can_rcv+0x10/0x10 [can]\n can_rcv+0xdd/0x130 [can]\n ? __pfx_can_rcv+0x10/0x10 [can]\n __netif_receive_skb_one_core+0x13d/0x150\n ? __pfx___netif_receive_skb_one_core+0x10/0x10\n ? __kasan_check_write+0x18/0x20\n ? _raw_spin_lock_irq+0x8c/0xe0\n __netif_receive_skb+0x23/0xb0\n process_backlog+0x107/0x260\n __napi_poll+0x69/0x310\n net_rx_action+0x2a1/0x580\n ? __pfx_net_rx_action+0x10/0x10\n ? __pfx__raw_spin_lock+0x10/0x10\n ? handle_irq_event+0x7d/0xa0\n __do_softirq+0xf3/0x3f8\n do_softirq+0x53/0x80\n \u003c/IRQ\u003e\n \u003cTASK\u003e\n __local_bh_enable_ip+0x6e/0x70\n netif_rx+0x16b/0x180\n can_send+0x32b/0x520 [can]\n ? __pfx_can_send+0x10/0x10 [can]\n ? __check_object_size+0x299/0x410\n raw_sendmsg+0x572/0x6d0 [can_raw]\n ? __pfx_raw_sendmsg+0x10/0x10 [can_raw]\n ? apparmor_socket_sendmsg+0x2f/0x40\n ? __pfx_raw_sendmsg+0x10/0x10 [can_raw]\n sock_sendmsg+0xef/0x100\n sock_write_iter+0x162/0x220\n ? __pfx_sock_write_iter+0x10/0x10\n ? __rtnl_unlock+0x47/0x80\n ? security_file_permission+0x54/0x320\n vfs_write+0x6ba/0x750\n ? __pfx_vfs_write+0x10/0x10\n ? __fget_light+0x1ca/0x1f0\n ? __rcu_read_unlock+0x5b/0x280\n ksys_write+0x143/0x170\n ? __pfx_ksys_write+0x10/0x10\n ? __kasan_check_read+0x15/0x20\n ? fpregs_assert_state_consistent+0x62/0x70\n __x64_sys_write+0x47/0x60\n do_syscall_64+0x60/0x90\n ? do_syscall_64+0x6d/0x90\n ? irqentry_exit+0x3f/0x50\n ? exc_page_fault+0x79/0xf0\n entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n\n Allocated by task 348:\n kasan_save_stack+0x2a/0x50\n kasan_set_track+0x29/0x40\n kasan_save_alloc_info+0x1f/0x30\n __kasan_kmalloc+0xb5/0xc0\n __kmalloc_node_track_caller+0x67/0x160\n j1939_sk_setsockopt+0x284/0x450 [can_j1939]\n __sys_setsockopt+0x15c/0x2f0\n __x64_sys_setsockopt+0x6b/0x80\n do_syscall_64+0x60/0x90\n entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n\n Freed by task 349:\n kasan_save_stack+0x2a/0x50\n kasan_set_track+0x29/0x40\n kasan_save_free_info+0x2f/0x50\n __kasan_slab_free+0x12e/0x1c0\n __kmem_cache_free+0x1b9/0x380\n kfree+0x7a/0x120\n j1939_sk_setsockopt+0x3b2/0x450 [can_j1939]\n __sys_setsockopt+0x15c/0x2f0\n __x64_sys_setsockopt+0x6b/0x80\n do_syscall_64+0x60/0x90\n entry_SYSCALL_64_after_hwframe+0x6e/0xd8"
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The UAF free of jsk-\u003efilters occurs only in local setsockopt(SO_J1939_FILTER) (or socket close); a remote CAN/J1939 peer can drive receive-side matching but cannot free the filter array, so the attack requires local syscall access.\nAC:L - The attacker fully controls both sides of the race\u2014concurrent SO_J1939_FILTER setsockopt threads to free/replace filters, plus AF_CAN raw sendmsg loopback (or bus traffic) to hit j1939_sk_match_filter in softirq\u2014so success does not depend on external conditions.\nPR:L - can_create()/j1939_sk_bind()/SO_J1939_FILTER impose no capability checks; on systems with an UP CAN/vcan device any unprivileged user can bind, and CAP_NET_ADMIN to create vcan is obtainable via unshare -Urn without real init-namespace root.\nUI:N - The attacker opens J1939/raw sockets, sets filters, and injects frames themselves; no separate victim action is required.\nS:U - Impact is a kernel slab use-after-free within the same host kernel authority (local privilege escalation), with no VM, IOMMU, or sandbox boundary crossed.\nC:H - This is a slab UAF of the attacker-sized j1939_filter array (up to 512 entries); reclaiming the freed object enables reading reclaimed kernel heap contents and arbitrary-read primitives.\nI:H - The same UAF is exploitable via heap spray of the freed filter allocation to obtain arbitrary write / control-flow hijacking primitives in the kernel.\nA:H - Triggering the race reliably produces slab-use-after-free reads in softirq (as shown by the KASAN report in j1939_sk_recv_match_one), causing kernel oops/panic even when not fully exploited."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T09:10:50.061Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/08de58abedf6e69396e1207e4f99ef8904b2b532"
},
{
"url": "https://git.kernel.org/stable/c/978e50ef8c38dc71bd14d1b0143d554ff5d188ba"
},
{
"url": "https://git.kernel.org/stable/c/41ccb5bcbf03f02d820bc6ea8390811859f558f8"
},
{
"url": "https://git.kernel.org/stable/c/4dd684d4bb3cd5454e0bf6e2a1bdfbd5c9c872ed"
},
{
"url": "https://git.kernel.org/stable/c/f84e7534457dcd7835be743517c35378bb4e7c50"
},
{
"url": "https://git.kernel.org/stable/c/fc74b9cb789cae061bbca7b203a3842e059f6b5d"
},
{
"url": "https://git.kernel.org/stable/c/efe7cf828039aedb297c1f9920b638fffee6aabc"
}
],
"title": "can: j1939: Fix UAF in j1939_sk_match_filter during setsockopt(SO_J1939_FILTER)",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2023-52637",
"datePublished": "2024-04-03T14:54:40.262Z",
"dateReserved": "2024-03-06T09:52:12.093Z",
"dateUpdated": "2026-08-05T09:10:50.061Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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