In the Linux kernel, the following vulnerability has been resolved:
ASoC: fsl: Fix refcount leak in imx_sgtl5000_probe
of_find_i2c_device_by_node() takes a reference,
In error paths, we should call put_device() to drop
the reference to aviod refount leak.
In the Linux kernel, the following vulnerability has been resolved:
rtw89: cfo: check mac_id to avoid out-of-bounds
Somehow, hardware reports incorrect mac_id and pollute memory. Check index
before we access the array.
UBSAN: array-index-out-of-bounds in rtw89/phy.c:2517:23
index 188 is out of range for type 's32 [64]'
CPU: 1 PID: 51550 Comm: irq/35-rtw89_pc Tainted: G OE
Call Trace:
<IRQ>
show_stack+0x52/0x58
dump_stack_lvl+0x4c/0x63
dump_stack+0x10/0x12
ubsan_epilogue+0x9/0x45
__ubsan_handle_out_of_bounds.cold+0x44/0x49
? __alloc_skb+0x92/0x1d0
rtw89_phy_cfo_parse+0x44/0x7f [rtw89_core]
rtw89_core_rx+0x261/0x871 [rtw89_core]
? __alloc_skb+0xee/0x1d0
rtw89_pci_napi_poll+0x3fa/0x4ea [rtw89_pci]
__napi_poll+0x33/0x1a0
net_rx_action+0x126/0x260
? __queue_work+0x217/0x4c0
__do_softirq+0xd9/0x315
? disable_irq_nosync+0x10/0x10
do_softirq.part.0+0x6d/0x90
</IRQ>
<TASK>
__local_bh_enable_ip+0x62/0x70
rtw89_pci_interrupt_threadfn+0x182/0x1a6 [rtw89_pci]
irq_thread_fn+0x28/0x60
irq_thread+0xc8/0x190
? irq_thread_fn+0x60/0x60
kthread+0x16b/0x190
? irq_thread_check_affinity+0xe0/0xe0
? set_kthread_struct+0x50/0x50
ret_from_fork+0x22/0x30
</TASK>
In the Linux kernel, the following vulnerability has been resolved:
net: phy: micrel: Allow probing without .driver_data
Currently, if the .probe element is present in the phy_driver structure
and the .driver_data is not, a NULL pointer dereference happens.
Allow passing .probe without .driver_data by inserting NULL checks
for priv->type.
In the Linux kernel, the following vulnerability has been resolved:
ARM: versatile: Add missing of_node_put in dcscb_init
The device_node pointer is returned by of_find_compatible_node
with refcount incremented. We should use of_node_put() to avoid
the refcount leak.
In the Linux kernel, the following vulnerability has been resolved:
blk-throttle: Set BIO_THROTTLED when bio has been throttled
1.In current process, all bio will set the BIO_THROTTLED flag
after __blk_throtl_bio().
2.If bio needs to be throttled, it will start the timer and
stop submit bio directly. Bio will submit in
blk_throtl_dispatch_work_fn() when the timer expires.But in
the current process, if bio is throttled. The BIO_THROTTLED
will be set to bio after timer start. If the bio has been
completed, it may cause use-after-free blow.
BUG: KASAN: use-after-free in blk_throtl_bio+0x12f0/0x2c70
Read of size 2 at addr ffff88801b8902d4 by task fio/26380
dump_stack+0x9b/0xce
print_address_description.constprop.6+0x3e/0x60
kasan_report.cold.9+0x22/0x3a
blk_throtl_bio+0x12f0/0x2c70
submit_bio_checks+0x701/0x1550
submit_bio_noacct+0x83/0xc80
submit_bio+0xa7/0x330
mpage_readahead+0x380/0x500
read_pages+0x1c1/0xbf0
page_cache_ra_unbounded+0x471/0x6f0
do_page_cache_ra+0xda/0x110
ondemand_readahead+0x442/0xae0
page_cache_async_ra+0x210/0x300
generic_file_buffered_read+0x4d9/0x2130
generic_file_read_iter+0x315/0x490
blkdev_read_iter+0x113/0x1b0
aio_read+0x2ad/0x450
io_submit_one+0xc8e/0x1d60
__se_sys_io_submit+0x125/0x350
do_syscall_64+0x2d/0x40
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Allocated by task 26380:
kasan_save_stack+0x19/0x40
__kasan_kmalloc.constprop.2+0xc1/0xd0
kmem_cache_alloc+0x146/0x440
mempool_alloc+0x125/0x2f0
bio_alloc_bioset+0x353/0x590
mpage_alloc+0x3b/0x240
do_mpage_readpage+0xddf/0x1ef0
mpage_readahead+0x264/0x500
read_pages+0x1c1/0xbf0
page_cache_ra_unbounded+0x471/0x6f0
do_page_cache_ra+0xda/0x110
ondemand_readahead+0x442/0xae0
page_cache_async_ra+0x210/0x300
generic_file_buffered_read+0x4d9/0x2130
generic_file_read_iter+0x315/0x490
blkdev_read_iter+0x113/0x1b0
aio_read+0x2ad/0x450
io_submit_one+0xc8e/0x1d60
__se_sys_io_submit+0x125/0x350
do_syscall_64+0x2d/0x40
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Freed by task 0:
kasan_save_stack+0x19/0x40
kasan_set_track+0x1c/0x30
kasan_set_free_info+0x1b/0x30
__kasan_slab_free+0x111/0x160
kmem_cache_free+0x94/0x460
mempool_free+0xd6/0x320
bio_free+0xe0/0x130
bio_put+0xab/0xe0
bio_endio+0x3a6/0x5d0
blk_update_request+0x590/0x1370
scsi_end_request+0x7d/0x400
scsi_io_completion+0x1aa/0xe50
scsi_softirq_done+0x11b/0x240
blk_mq_complete_request+0xd4/0x120
scsi_mq_done+0xf0/0x200
virtscsi_vq_done+0xbc/0x150
vring_interrupt+0x179/0x390
__handle_irq_event_percpu+0xf7/0x490
handle_irq_event_percpu+0x7b/0x160
handle_irq_event+0xcc/0x170
handle_edge_irq+0x215/0xb20
common_interrupt+0x60/0x120
asm_common_interrupt+0x1e/0x40
Fix this by move BIO_THROTTLED set into the queue_lock.
In the Linux kernel, the following vulnerability has been resolved:
drm: msm: fix possible memory leak in mdp5_crtc_cursor_set()
drm_gem_object_lookup will call drm_gem_object_get inside. So cursor_bo
needs to be put when msm_gem_get_and_pin_iova fails.
In the Linux kernel, the following vulnerability has been resolved:
ARM: hisi: Add missing of_node_put after of_find_compatible_node
of_find_compatible_node will increment the refcount of the returned
device_node. Calling of_node_put() to avoid the refcount leak
In the Linux kernel, the following vulnerability has been resolved:
pinctrl: renesas: rzn1: Fix possible null-ptr-deref in sh_pfc_map_resources()
It will cause null-ptr-deref when using 'res', if platform_get_resource()
returns NULL, so move using 'res' after devm_ioremap_resource() that
will check it to avoid null-ptr-deref.
And use devm_platform_get_and_ioremap_resource() to simplify code.
In the Linux kernel, the following vulnerability has been resolved:
rxrpc: Fix listen() setting the bar too high for the prealloc rings
AF_RXRPC's listen() handler lets you set the backlog up to 32 (if you bump
up the sysctl), but whilst the preallocation circular buffers have 32 slots
in them, one of them has to be a dead slot because we're using CIRC_CNT().
This means that listen(rxrpc_sock, 32) will cause an oops when the socket
is closed because rxrpc_service_prealloc_one() allocated one too many calls
and rxrpc_discard_prealloc() won't then be able to get rid of them because
it'll think the ring is empty. rxrpc_release_calls_on_socket() then tries
to abort them, but oopses because call->peer isn't yet set.
Fix this by setting the maximum backlog to RXRPC_BACKLOG_MAX - 1 to match
the ring capacity.
BUG: kernel NULL pointer dereference, address: 0000000000000086
...
RIP: 0010:rxrpc_send_abort_packet+0x73/0x240 [rxrpc]
Call Trace:
<TASK>
? __wake_up_common_lock+0x7a/0x90
? rxrpc_notify_socket+0x8e/0x140 [rxrpc]
? rxrpc_abort_call+0x4c/0x60 [rxrpc]
rxrpc_release_calls_on_socket+0x107/0x1a0 [rxrpc]
rxrpc_release+0xc9/0x1c0 [rxrpc]
__sock_release+0x37/0xa0
sock_close+0x11/0x20
__fput+0x89/0x240
task_work_run+0x59/0x90
do_exit+0x319/0xaa0