Security Vulnerabilities - CVEs Published In October 2024
In the Linux kernel, the following vulnerability has been resolved:
wifi: cfg80211: Set correct chandef when starting CAC
When starting CAC in a mode other than AP mode, it return a
"WARNING: CPU: 0 PID: 63 at cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]"
caused by the chandef.chan being null at the end of CAC.
Solution: Ensure the channel definition is set for the different modes
when starting CAC to avoid getting a NULL 'chan' at the end of CAC.
Call Trace:
? show_regs.part.0+0x14/0x16
? __warn+0x67/0xc0
? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]
? report_bug+0xa7/0x130
? exc_overflow+0x30/0x30
? handle_bug+0x27/0x50
? exc_invalid_op+0x18/0x60
? handle_exception+0xf6/0xf6
? exc_overflow+0x30/0x30
? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]
? exc_overflow+0x30/0x30
? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]
? regulatory_propagate_dfs_state.cold+0x1b/0x4c [cfg80211]
? cfg80211_propagate_cac_done_wk+0x1a/0x30 [cfg80211]
? process_one_work+0x165/0x280
? worker_thread+0x120/0x3f0
? kthread+0xc2/0xf0
? process_one_work+0x280/0x280
? kthread_complete_and_exit+0x20/0x20
? ret_from_fork+0x19/0x24
[shorten subject, remove OCB, reorder cases to match previous list]
CVSS Score
5.5
EPSS Score
0.0
Published
2024-10-21
In the Linux kernel, the following vulnerability has been resolved:
wifi: ath9k_htc: Use __skb_set_length() for resetting urb before resubmit
Syzbot points out that skb_trim() has a sanity check on the existing length of
the skb, which can be uninitialised in some error paths. The intent here is
clearly just to reset the length to zero before resubmitting, so switch to
calling __skb_set_length(skb, 0) directly. In addition, __skb_set_length()
already contains a call to skb_reset_tail_pointer(), so remove the redundant
call.
The syzbot report came from ath9k_hif_usb_reg_in_cb(), but there's a similar
usage of skb_trim() in ath9k_hif_usb_rx_cb(), change both while we're at it.
CVSS Score
5.5
EPSS Score
0.0
Published
2024-10-21
In the Linux kernel, the following vulnerability has been resolved:
wifi: rtw89: avoid to add interface to list twice when SER
If SER L2 occurs during the WoWLAN resume flow, the add interface flow
is triggered by ieee80211_reconfig(). However, due to
rtw89_wow_resume() return failure, it will cause the add interface flow
to be executed again, resulting in a double add list and causing a kernel
panic. Therefore, we have added a check to prevent double adding of the
list.
list_add double add: new=ffff99d6992e2010, prev=ffff99d6992e2010, next=ffff99d695302628.
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:37!
invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
CPU: 0 PID: 9 Comm: kworker/0:1 Tainted: G W O 6.6.30-02659-gc18865c4dfbd #1 770df2933251a0e3c888ba69d1053a817a6376a7
Hardware name: HP Grunt/Grunt, BIOS Google_Grunt.11031.169.0 06/24/2021
Workqueue: events_freezable ieee80211_restart_work [mac80211]
RIP: 0010:__list_add_valid_or_report+0x5e/0xb0
Code: c7 74 18 48 39 ce 74 13 b0 01 59 5a 5e 5f 41 58 41 59 41 5a 5d e9 e2 d6 03 00 cc 48 c7 c7 8d 4f 17 83 48 89 c2 e8 02 c0 00 00 <0f> 0b 48 c7 c7 aa 8c 1c 83 e8 f4 bf 00 00 0f 0b 48 c7 c7 c8 bc 12
RSP: 0018:ffffa91b8007bc50 EFLAGS: 00010246
RAX: 0000000000000058 RBX: ffff99d6992e0900 RCX: a014d76c70ef3900
RDX: ffffa91b8007bae8 RSI: 00000000ffffdfff RDI: 0000000000000001
RBP: ffffa91b8007bc88 R08: 0000000000000000 R09: ffffa91b8007bae0
R10: 00000000ffffdfff R11: ffffffff83a79800 R12: ffff99d695302060
R13: ffff99d695300900 R14: ffff99d6992e1be0 R15: ffff99d6992e2010
FS: 0000000000000000(0000) GS:ffff99d6aac00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000078fbdba43480 CR3: 000000010e464000 CR4: 00000000001506f0
Call Trace:
<TASK>
? __die_body+0x1f/0x70
? die+0x3d/0x60
? do_trap+0xa4/0x110
? __list_add_valid_or_report+0x5e/0xb0
? do_error_trap+0x6d/0x90
? __list_add_valid_or_report+0x5e/0xb0
? handle_invalid_op+0x30/0x40
? __list_add_valid_or_report+0x5e/0xb0
? exc_invalid_op+0x3c/0x50
? asm_exc_invalid_op+0x16/0x20
? __list_add_valid_or_report+0x5e/0xb0
rtw89_ops_add_interface+0x309/0x310 [rtw89_core 7c32b1ee6854761c0321027c8a58c5160e41f48f]
drv_add_interface+0x5c/0x130 [mac80211 83e989e6e616bd5b4b8a2b0a9f9352a2c385a3bc]
ieee80211_reconfig+0x241/0x13d0 [mac80211 83e989e6e616bd5b4b8a2b0a9f9352a2c385a3bc]
? finish_wait+0x3e/0x90
? synchronize_rcu_expedited+0x174/0x260
? sync_rcu_exp_done_unlocked+0x50/0x50
? wake_bit_function+0x40/0x40
ieee80211_restart_work+0xf0/0x140 [mac80211 83e989e6e616bd5b4b8a2b0a9f9352a2c385a3bc]
process_scheduled_works+0x1e5/0x480
worker_thread+0xea/0x1e0
kthread+0xdb/0x110
? move_linked_works+0x90/0x90
? kthread_associate_blkcg+0xa0/0xa0
ret_from_fork+0x3b/0x50
? kthread_associate_blkcg+0xa0/0xa0
ret_from_fork_asm+0x11/0x20
</TASK>
Modules linked in: dm_integrity async_xor xor async_tx lz4 lz4_compress zstd zstd_compress zram zsmalloc rfcomm cmac uinput algif_hash algif_skcipher af_alg btusb btrtl iio_trig_hrtimer industrialio_sw_trigger btmtk industrialio_configfs btbcm btintel uvcvideo videobuf2_vmalloc iio_trig_sysfs videobuf2_memops videobuf2_v4l2 videobuf2_common uvc snd_hda_codec_hdmi veth snd_hda_intel snd_intel_dspcfg acpi_als snd_hda_codec industrialio_triggered_buffer kfifo_buf snd_hwdep industrialio i2c_piix4 snd_hda_core designware_i2s ip6table_nat snd_soc_max98357a xt_MASQUERADE xt_cgroup snd_soc_acp_rt5682_mach fuse rtw89_8922ae(O) rtw89_8922a(O) rtw89_pci(O) rtw89_core(O) 8021q mac80211(O) bluetooth ecdh_generic ecc cfg80211 r8152 mii joydev
gsmi: Log Shutdown Reason 0x03
---[ end trace 0000000000000000 ]---
CVSS Score
5.5
EPSS Score
0.0
Published
2024-10-21
In the Linux kernel, the following vulnerability has been resolved:
l2tp: prevent possible tunnel refcount underflow
When a session is created, it sets a backpointer to its tunnel. When
the session refcount drops to 0, l2tp_session_free drops the tunnel
refcount if session->tunnel is non-NULL. However, session->tunnel is
set in l2tp_session_create, before the tunnel refcount is incremented
by l2tp_session_register, which leaves a small window where
session->tunnel is non-NULL when the tunnel refcount hasn't been
bumped.
Moving the assignment to l2tp_session_register is trivial but
l2tp_session_create calls l2tp_session_set_header_len which uses
session->tunnel to get the tunnel's encap. Add an encap arg to
l2tp_session_set_header_len to avoid using session->tunnel.
If l2tpv3 sessions have colliding IDs, it is possible for
l2tp_v3_session_get to race with l2tp_session_register and fetch a
session which doesn't yet have session->tunnel set. Add a check for
this case.
CVSS Score
5.5
EPSS Score
0.0
Published
2024-10-21
In the Linux kernel, the following vulnerability has been resolved:
gpiolib: Fix potential NULL pointer dereference in gpiod_get_label()
In `gpiod_get_label()`, it is possible that `srcu_dereference_check()` may
return a NULL pointer, leading to a scenario where `label->str` is accessed
without verifying if `label` itself is NULL.
This patch adds a proper NULL check for `label` before accessing
`label->str`. The check for `label->str != NULL` is removed because
`label->str` can never be NULL if `label` is not NULL.
This fixes the issue where the label name was being printed as `(efault)`
when dumping the sysfs GPIO file when `label == NULL`.
CVSS Score
5.5
EPSS Score
0.0
Published
2024-10-21
In the Linux kernel, the following vulnerability has been resolved:
drm/xe: Prevent null pointer access in xe_migrate_copy
xe_migrate_copy designed to copy content of TTM resources. When source
resource is null, it will trigger a NULL pointer dereference in
xe_migrate_copy. To avoid this situation, update lacks source flag to
true for this case, the flag will trigger xe_migrate_clear rather than
xe_migrate_copy.
Issue trace:
<7> [317.089847] xe 0000:00:02.0: [drm:xe_migrate_copy [xe]] Pass 14,
sizes: 4194304 & 4194304
<7> [317.089945] xe 0000:00:02.0: [drm:xe_migrate_copy [xe]] Pass 15,
sizes: 4194304 & 4194304
<1> [317.128055] BUG: kernel NULL pointer dereference, address:
0000000000000010
<1> [317.128064] #PF: supervisor read access in kernel mode
<1> [317.128066] #PF: error_code(0x0000) - not-present page
<6> [317.128069] PGD 0 P4D 0
<4> [317.128071] Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI
<4> [317.128074] CPU: 1 UID: 0 PID: 1440 Comm: kunit_try_catch Tainted:
G U N 6.11.0-rc7-xe #1
<4> [317.128078] Tainted: [U]=USER, [N]=TEST
<4> [317.128080] Hardware name: Intel Corporation Lunar Lake Client
Platform/LNL-M LP5 RVP1, BIOS LNLMFWI1.R00.3221.D80.2407291239 07/29/2024
<4> [317.128082] RIP: 0010:xe_migrate_copy+0x66/0x13e0 [xe]
<4> [317.128158] Code: 00 00 48 89 8d e0 fe ff ff 48 8b 40 10 4c 89 85 c8
fe ff ff 44 88 8d bd fe ff ff 65 48 8b 3c 25 28 00 00 00 48 89 7d d0 31
ff <8b> 79 10 48 89 85 a0 fe ff ff 48 8b 00 48 89 b5 d8 fe ff ff 83 ff
<4> [317.128162] RSP: 0018:ffffc9000167f9f0 EFLAGS: 00010246
<4> [317.128164] RAX: ffff8881120d8028 RBX: ffff88814d070428 RCX:
0000000000000000
<4> [317.128166] RDX: ffff88813cb99c00 RSI: 0000000004000000 RDI:
0000000000000000
<4> [317.128168] RBP: ffffc9000167fbb8 R08: ffff88814e7b1f08 R09:
0000000000000001
<4> [317.128170] R10: 0000000000000001 R11: 0000000000000001 R12:
ffff88814e7b1f08
<4> [317.128172] R13: ffff88814e7b1f08 R14: ffff88813cb99c00 R15:
0000000000000001
<4> [317.128174] FS: 0000000000000000(0000) GS:ffff88846f280000(0000)
knlGS:0000000000000000
<4> [317.128176] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4> [317.128178] CR2: 0000000000000010 CR3: 000000011f676004 CR4:
0000000000770ef0
<4> [317.128180] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
<4> [317.128182] DR3: 0000000000000000 DR6: 00000000ffff07f0 DR7:
0000000000000400
<4> [317.128184] PKRU: 55555554
<4> [317.128185] Call Trace:
<4> [317.128187] <TASK>
<4> [317.128189] ? show_regs+0x67/0x70
<4> [317.128194] ? __die_body+0x20/0x70
<4> [317.128196] ? __die+0x2b/0x40
<4> [317.128198] ? page_fault_oops+0x15f/0x4e0
<4> [317.128203] ? do_user_addr_fault+0x3fb/0x970
<4> [317.128205] ? lock_acquire+0xc7/0x2e0
<4> [317.128209] ? exc_page_fault+0x87/0x2b0
<4> [317.128212] ? asm_exc_page_fault+0x27/0x30
<4> [317.128216] ? xe_migrate_copy+0x66/0x13e0 [xe]
<4> [317.128263] ? __lock_acquire+0xb9d/0x26f0
<4> [317.128265] ? __lock_acquire+0xb9d/0x26f0
<4> [317.128267] ? sg_free_append_table+0x20/0x80
<4> [317.128271] ? lock_acquire+0xc7/0x2e0
<4> [317.128273] ? mark_held_locks+0x4d/0x80
<4> [317.128275] ? trace_hardirqs_on+0x1e/0xd0
<4> [317.128278] ? _raw_spin_unlock_irqrestore+0x31/0x60
<4> [317.128281] ? __pm_runtime_resume+0x60/0xa0
<4> [317.128284] xe_bo_move+0x682/0xc50 [xe]
<4> [317.128315] ? lock_is_held_type+0xaa/0x120
<4> [317.128318] ttm_bo_handle_move_mem+0xe5/0x1a0 [ttm]
<4> [317.128324] ttm_bo_validate+0xd1/0x1a0 [ttm]
<4> [317.128328] shrink_test_run_device+0x721/0xc10 [xe]
<4> [317.128360] ? find_held_lock+0x31/0x90
<4> [317.128363] ? lock_release+0xd1/0x2a0
<4> [317.128365] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[kunit]
<4> [317.128370] xe_bo_shrink_kunit+0x11/0x20 [xe]
<4> [317.128397] kunit_try_run_case+0x6e/0x150 [kunit]
<4> [317.128400] ? trace_hardirqs_on+0x1e/0xd0
<4> [317.128402] ? _raw_spin_unlock_irqrestore+0x31/0x60
<4> [317.128404] kunit_generic_run_threadfn_adapter+0x1e/0x40 [ku
---truncated---
CVSS Score
5.5
EPSS Score
0.001
Published
2024-10-21
In the Linux kernel, the following vulnerability has been resolved:
drm/xe/guc_submit: add missing locking in wedged_fini
Any non-wedged queue can have a zero refcount here and can be running
concurrently with an async queue destroy, therefore dereferencing the
queue ptr to check wedge status after the lookup can trigger UAF if
queue is not wedged. Fix this by keeping the submission_state lock held
around the check to postpone the free and make the check safe, before
dropping again around the put() to avoid the deadlock.
(cherry picked from commit d28af0b6b9580b9f90c265a7da0315b0ad20bbfd)
CVSS Score
5.5
EPSS Score
0.0
Published
2024-10-21
In the Linux kernel, the following vulnerability has been resolved:
sctp: set sk_state back to CLOSED if autobind fails in sctp_listen_start
In sctp_listen_start() invoked by sctp_inet_listen(), it should set the
sk_state back to CLOSED if sctp_autobind() fails due to whatever reason.
Otherwise, next time when calling sctp_inet_listen(), if sctp_sk(sk)->reuse
is already set via setsockopt(SCTP_REUSE_PORT), sctp_sk(sk)->bind_hash will
be dereferenced as sk_state is LISTENING, which causes a crash as bind_hash
is NULL.
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
RIP: 0010:sctp_inet_listen+0x7f0/0xa20 net/sctp/socket.c:8617
Call Trace:
<TASK>
__sys_listen_socket net/socket.c:1883 [inline]
__sys_listen+0x1b7/0x230 net/socket.c:1894
__do_sys_listen net/socket.c:1902 [inline]
CVSS Score
5.5
EPSS Score
0.0
Published
2024-10-21
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Add null check for head_pipe in dcn32_acquire_idle_pipe_for_head_pipe_in_layer
This commit addresses a potential null pointer dereference issue in the
`dcn32_acquire_idle_pipe_for_head_pipe_in_layer` function. The issue
could occur when `head_pipe` is null.
The fix adds a check to ensure `head_pipe` is not null before asserting
it. If `head_pipe` is null, the function returns NULL to prevent a
potential null pointer dereference.
Reported by smatch:
drivers/gpu/drm/amd/amdgpu/../display/dc/resource/dcn32/dcn32_resource.c:2690 dcn32_acquire_idle_pipe_for_head_pipe_in_layer() error: we previously assumed 'head_pipe' could be null (see line 2681)
CVSS Score
5.5
EPSS Score
0.0
Published
2024-10-21
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Add null check for head_pipe in dcn201_acquire_free_pipe_for_layer
This commit addresses a potential null pointer dereference issue in the
`dcn201_acquire_free_pipe_for_layer` function. The issue could occur
when `head_pipe` is null.
The fix adds a check to ensure `head_pipe` is not null before asserting
it. If `head_pipe` is null, the function returns NULL to prevent a
potential null pointer dereference.
Reported by smatch:
drivers/gpu/drm/amd/amdgpu/../display/dc/resource/dcn201/dcn201_resource.c:1016 dcn201_acquire_free_pipe_for_layer() error: we previously assumed 'head_pipe' could be null (see line 1010)
CVSS Score
5.5
EPSS Score
0.0
Published
2024-10-21