| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| In the Linux kernel, the following vulnerability has been resolved:
tty: serial: imx: disable Ageing Timer interrupt request irq
There maybe pending USR interrupt before requesting irq, however
uart_add_one_port has not executed, so there will be kernel panic:
[ 0.795668] Unable to handle kernel NULL pointer dereference at virtual addre
ss 0000000000000080
[ 0.802701] Mem abort info:
[ 0.805367] ESR = 0x0000000096000004
[ 0.808950] EC = 0x25: DABT (current EL), IL = 32 bits
[ 0.814033] SET = 0, FnV = 0
[ 0.816950] EA = 0, S1PTW = 0
[ 0.819950] FSC = 0x04: level 0 translation fault
[ 0.824617] Data abort info:
[ 0.827367] ISV = 0, ISS = 0x00000004
[ 0.831033] CM = 0, WnR = 0
[ 0.833866] [0000000000000080] user address but active_mm is swapper
[ 0.839951] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP
[ 0.845953] Modules linked in:
[ 0.848869] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.1.1+g56321e101aca #1
[ 0.855617] Hardware name: Freescale i.MX8MP EVK (DT)
[ 0.860452] pstate: 000000c5 (nzcv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 0.867117] pc : __imx_uart_rxint.constprop.0+0x11c/0x2c0
[ 0.872283] lr : imx_uart_int+0xf8/0x1ec
The issue only happends in the inmate linux when Jailhouse hypervisor
enabled. The test procedure is:
while true; do
jailhouse enable imx8mp.cell
jailhouse cell linux xxxx
sleep 10
jailhouse cell destroy 1
jailhouse disable
sleep 5
done
And during the upper test, press keys to the 2nd linux console.
When `jailhouse cell destroy 1`, the 2nd linux has no chance to put
the uart to a quiese state, so USR1/2 may has pending interrupts. Then
when `jailhosue cell linux xx` to start 2nd linux again, the issue
trigger.
In order to disable irqs before requesting them, both UCR1 and UCR2 irqs
should be disabled, so here fix that, disable the Ageing Timer interrupt
in UCR2 as UCR1 does. |
| In the Linux kernel, the following vulnerability has been resolved:
wifi: iwlwifi: dvm: Fix memcpy: detected field-spanning write backtrace
A received TKIP key may be up to 32 bytes because it may contain
MIC rx/tx keys too. These are not used by iwl and copying these
over overflows the iwl_keyinfo.key field.
Add a check to not copy more data to iwl_keyinfo.key then will fit.
This fixes backtraces like this one:
memcpy: detected field-spanning write (size 32) of single field "sta_cmd.key.key" at drivers/net/wireless/intel/iwlwifi/dvm/sta.c:1103 (size 16)
WARNING: CPU: 1 PID: 946 at drivers/net/wireless/intel/iwlwifi/dvm/sta.c:1103 iwlagn_send_sta_key+0x375/0x390 [iwldvm]
<snip>
Hardware name: Dell Inc. Latitude E6430/0H3MT5, BIOS A21 05/08/2017
RIP: 0010:iwlagn_send_sta_key+0x375/0x390 [iwldvm]
<snip>
Call Trace:
<TASK>
iwl_set_dynamic_key+0x1f0/0x220 [iwldvm]
iwlagn_mac_set_key+0x1e4/0x280 [iwldvm]
drv_set_key+0xa4/0x1b0 [mac80211]
ieee80211_key_enable_hw_accel+0xa8/0x2d0 [mac80211]
ieee80211_key_replace+0x22d/0x8e0 [mac80211]
<snip> |
| In the Linux kernel, the following vulnerability has been resolved:
media: av7110: prevent underflow in write_ts_to_decoder()
The buf[4] value comes from the user via ts_play(). It is a value in
the u8 range. The final length we pass to av7110_ipack_instant_repack()
is "len - (buf[4] + 1) - 4" so add a check to ensure that the length is
not negative. It's not clear that passing a negative len value does
anything bad necessarily, but it's not best practice.
With the new bounds checking the "if (!len)" condition is no longer
possible or required so remove that. |
| In the Linux kernel, the following vulnerability has been resolved:
bpf: Address KCSAN report on bpf_lru_list
KCSAN reported a data-race when accessing node->ref.
Although node->ref does not have to be accurate,
take this chance to use a more common READ_ONCE() and WRITE_ONCE()
pattern instead of data_race().
There is an existing bpf_lru_node_is_ref() and bpf_lru_node_set_ref().
This patch also adds bpf_lru_node_clear_ref() to do the
WRITE_ONCE(node->ref, 0) also.
==================================================================
BUG: KCSAN: data-race in __bpf_lru_list_rotate / __htab_lru_percpu_map_update_elem
write to 0xffff888137038deb of 1 bytes by task 11240 on cpu 1:
__bpf_lru_node_move kernel/bpf/bpf_lru_list.c:113 [inline]
__bpf_lru_list_rotate_active kernel/bpf/bpf_lru_list.c:149 [inline]
__bpf_lru_list_rotate+0x1bf/0x750 kernel/bpf/bpf_lru_list.c:240
bpf_lru_list_pop_free_to_local kernel/bpf/bpf_lru_list.c:329 [inline]
bpf_common_lru_pop_free kernel/bpf/bpf_lru_list.c:447 [inline]
bpf_lru_pop_free+0x638/0xe20 kernel/bpf/bpf_lru_list.c:499
prealloc_lru_pop kernel/bpf/hashtab.c:290 [inline]
__htab_lru_percpu_map_update_elem+0xe7/0x820 kernel/bpf/hashtab.c:1316
bpf_percpu_hash_update+0x5e/0x90 kernel/bpf/hashtab.c:2313
bpf_map_update_value+0x2a9/0x370 kernel/bpf/syscall.c:200
generic_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1687
bpf_map_do_batch+0x2d9/0x3d0 kernel/bpf/syscall.c:4534
__sys_bpf+0x338/0x810
__do_sys_bpf kernel/bpf/syscall.c:5096 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5094 [inline]
__x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5094
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
read to 0xffff888137038deb of 1 bytes by task 11241 on cpu 0:
bpf_lru_node_set_ref kernel/bpf/bpf_lru_list.h:70 [inline]
__htab_lru_percpu_map_update_elem+0x2f1/0x820 kernel/bpf/hashtab.c:1332
bpf_percpu_hash_update+0x5e/0x90 kernel/bpf/hashtab.c:2313
bpf_map_update_value+0x2a9/0x370 kernel/bpf/syscall.c:200
generic_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1687
bpf_map_do_batch+0x2d9/0x3d0 kernel/bpf/syscall.c:4534
__sys_bpf+0x338/0x810
__do_sys_bpf kernel/bpf/syscall.c:5096 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5094 [inline]
__x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5094
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
value changed: 0x01 -> 0x00
Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 11241 Comm: syz-executor.3 Not tainted 6.3.0-rc7-syzkaller-00136-g6a66fdd29ea1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
================================================================== |
| In the Linux kernel, the following vulnerability has been resolved:
cifs: fix potential race when tree connecting ipc
Protect access of TCP_Server_Info::hostname when building the ipc tree
name as it might get freed in cifsd thread and thus causing an
use-after-free bug in __tree_connect_dfs_target(). Also, while at it,
update status of IPC tcon on success and then avoid any extra tree
connects. |
| In the Linux kernel, the following vulnerability has been resolved:
MIPS: fw: Allow firmware to pass a empty env
fw_getenv will use env entry to determine style of env,
however it is legal for firmware to just pass a empty list.
Check if first entry exist before running strchr to avoid
null pointer dereference. |
| In the Linux kernel, the following vulnerability has been resolved:
s390/vmem: split pages when debug pagealloc is enabled
Since commit bb1520d581a3 ("s390/mm: start kernel with DAT enabled")
the kernel crashes early during boot when debug pagealloc is enabled:
mem auto-init: stack:off, heap alloc:off, heap free:off
addressing exception: 0005 ilc:2 [#1] SMP DEBUG_PAGEALLOC
Modules linked in:
CPU: 0 PID: 0 Comm: swapper Not tainted 6.5.0-rc3-09759-gc5666c912155 #630
[..]
Krnl Code: 00000000001325f6: ec5600248064 cgrj %r5,%r6,8,000000000013263e
00000000001325fc: eb880002000c srlg %r8,%r8,2
#0000000000132602: b2210051 ipte %r5,%r1,%r0,0
>0000000000132606: b90400d1 lgr %r13,%r1
000000000013260a: 41605008 la %r6,8(%r5)
000000000013260e: a7db1000 aghi %r13,4096
0000000000132612: b221006d ipte %r6,%r13,%r0,0
0000000000132616: e3d0d0000171 lay %r13,4096(%r13)
Call Trace:
__kernel_map_pages+0x14e/0x320
__free_pages_ok+0x23a/0x5a8)
free_low_memory_core_early+0x214/0x2c8
memblock_free_all+0x28/0x58
mem_init+0xb6/0x228
mm_core_init+0xb6/0x3b0
start_kernel+0x1d2/0x5a8
startup_continue+0x36/0x40
Kernel panic - not syncing: Fatal exception: panic_on_oops
This is caused by using large mappings on machines with EDAT1/EDAT2. Add
the code to split the mappings into 4k pages if debug pagealloc is enabled
by CONFIG_DEBUG_PAGEALLOC_ENABLE_DEFAULT or the debug_pagealloc kernel
command line option. |
| In the Linux kernel, the following vulnerability has been resolved:
fbdev: udlfb: Fix endpoint check
The syzbot fuzzer detected a problem in the udlfb driver, caused by an
endpoint not having the expected type:
usb 1-1: Read EDID byte 0 failed: -71
usb 1-1: Unable to get valid EDID from device/display
------------[ cut here ]------------
usb 1-1: BOGUS urb xfer, pipe 3 != type 1
WARNING: CPU: 0 PID: 9 at drivers/usb/core/urb.c:504 usb_submit_urb+0xed6/0x1880
drivers/usb/core/urb.c:504
Modules linked in:
CPU: 0 PID: 9 Comm: kworker/0:1 Not tainted
6.4.0-rc1-syzkaller-00016-ga4422ff22142 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google
04/28/2023
Workqueue: usb_hub_wq hub_event
RIP: 0010:usb_submit_urb+0xed6/0x1880 drivers/usb/core/urb.c:504
...
Call Trace:
<TASK>
dlfb_submit_urb+0x92/0x180 drivers/video/fbdev/udlfb.c:1980
dlfb_set_video_mode+0x21f0/0x2950 drivers/video/fbdev/udlfb.c:315
dlfb_ops_set_par+0x2a7/0x8d0 drivers/video/fbdev/udlfb.c:1111
dlfb_usb_probe+0x149a/0x2710 drivers/video/fbdev/udlfb.c:1743
The current approach for this issue failed to catch the problem
because it only checks for the existence of a bulk-OUT endpoint; it
doesn't check whether this endpoint is the one that the driver will
actually use.
We can fix the problem by instead checking that the endpoint used by
the driver does exist and is bulk-OUT. |
| In the Linux kernel, the following vulnerability has been resolved:
nfsd: move init of percpu reply_cache_stats counters back to nfsd_init_net
Commit f5f9d4a314da ("nfsd: move reply cache initialization into nfsd
startup") moved the initialization of the reply cache into nfsd startup,
but didn't account for the stats counters, which can be accessed before
nfsd is ever started. The result can be a NULL pointer dereference when
someone accesses /proc/fs/nfsd/reply_cache_stats while nfsd is still
shut down.
This is a regression and a user-triggerable oops in the right situation:
- non-x86_64 arch
- /proc/fs/nfsd is mounted in the namespace
- nfsd is not started in the namespace
- unprivileged user calls "cat /proc/fs/nfsd/reply_cache_stats"
Although this is easy to trigger on some arches (like aarch64), on
x86_64, calling this_cpu_ptr(NULL) evidently returns a pointer to the
fixed_percpu_data. That struct looks just enough like a newly
initialized percpu var to allow nfsd_reply_cache_stats_show to access
it without Oopsing.
Move the initialization of the per-net+per-cpu reply-cache counters
back into nfsd_init_net, while leaving the rest of the reply cache
allocations to be done at nfsd startup time.
Kudos to Eirik who did most of the legwork to track this down. |
| In the Linux kernel, the following vulnerability has been resolved:
wifi: ath11k: Fix memory leak in ath11k_peer_rx_frag_setup
crypto_alloc_shash() allocates resources, which should be released by
crypto_free_shash(). When ath11k_peer_find() fails, there has memory
leak. Add missing crypto_free_shash() to fix this. |
| In the Linux kernel, the following vulnerability has been resolved:
RDMA/srpt: Add a check for valid 'mad_agent' pointer
When unregistering MAD agent, srpt module has a non-null check
for 'mad_agent' pointer before invoking ib_unregister_mad_agent().
This check can pass if 'mad_agent' variable holds an error value.
The 'mad_agent' can have an error value for a short window when
srpt_add_one() and srpt_remove_one() is executed simultaneously.
In srpt module, added a valid pointer check for 'sport->mad_agent'
before unregistering MAD agent.
This issue can hit when RoCE driver unregisters ib_device
Stack Trace:
------------
BUG: kernel NULL pointer dereference, address: 000000000000004d
PGD 145003067 P4D 145003067 PUD 2324fe067 PMD 0
Oops: 0002 [#1] PREEMPT SMP NOPTI
CPU: 10 PID: 4459 Comm: kworker/u80:0 Kdump: loaded Tainted: P
Hardware name: Dell Inc. PowerEdge R640/06NR82, BIOS 2.5.4 01/13/2020
Workqueue: bnxt_re bnxt_re_task [bnxt_re]
RIP: 0010:_raw_spin_lock_irqsave+0x19/0x40
Call Trace:
ib_unregister_mad_agent+0x46/0x2f0 [ib_core]
IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
? __schedule+0x20b/0x560
srpt_unregister_mad_agent+0x93/0xd0 [ib_srpt]
srpt_remove_one+0x20/0x150 [ib_srpt]
remove_client_context+0x88/0xd0 [ib_core]
bond0: (slave p2p1): link status definitely up, 100000 Mbps full duplex
disable_device+0x8a/0x160 [ib_core]
bond0: active interface up!
? kernfs_name_hash+0x12/0x80
(NULL device *): Bonding Info Received: rdev: 000000006c0b8247
__ib_unregister_device+0x42/0xb0 [ib_core]
(NULL device *): Master: mode: 4 num_slaves:2
ib_unregister_device+0x22/0x30 [ib_core]
(NULL device *): Slave: id: 105069936 name:p2p1 link:0 state:0
bnxt_re_stopqps_and_ib_uninit+0x83/0x90 [bnxt_re]
bnxt_re_alloc_lag+0x12e/0x4e0 [bnxt_re] |
| In the Linux kernel, the following vulnerability has been resolved:
xfrm: Fix leak of dev tracker
At the stage of direction checks, the netdev reference tracker is
already initialized, but released with wrong *_put() call. |
| In the Linux kernel, the following vulnerability has been resolved:
fs/ntfs3: Fix a possible null-pointer dereference in ni_clear()
In a previous commit c1006bd13146, ni->mi.mrec in ni_write_inode()
could be NULL, and thus a NULL check is added for this variable.
However, in the same call stack, ni->mi.mrec can be also dereferenced
in ni_clear():
ntfs_evict_inode(inode)
ni_write_inode(inode, ...)
ni = ntfs_i(inode);
is_rec_inuse(ni->mi.mrec) -> Add a NULL check by previous commit
ni_clear(ntfs_i(inode))
is_rec_inuse(ni->mi.mrec) -> No check
Thus, a possible null-pointer dereference may exist in ni_clear().
To fix it, a NULL check is added in this function. |
| In the Linux kernel, the following vulnerability has been resolved:
media: usb: siano: Fix use after free bugs caused by do_submit_urb
There are UAF bugs caused by do_submit_urb(). One of the KASan reports
is shown below:
[ 36.403605] BUG: KASAN: use-after-free in worker_thread+0x4a2/0x890
[ 36.406105] Read of size 8 at addr ffff8880059600e8 by task kworker/0:2/49
[ 36.408316]
[ 36.408867] CPU: 0 PID: 49 Comm: kworker/0:2 Not tainted 6.2.0-rc3-15798-g5a41237ad1d4-dir8
[ 36.411696] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g15584
[ 36.416157] Workqueue: 0x0 (events)
[ 36.417654] Call Trace:
[ 36.418546] <TASK>
[ 36.419320] dump_stack_lvl+0x96/0xd0
[ 36.420522] print_address_description+0x75/0x350
[ 36.421992] print_report+0x11b/0x250
[ 36.423174] ? _raw_spin_lock_irqsave+0x87/0xd0
[ 36.424806] ? __virt_addr_valid+0xcf/0x170
[ 36.426069] ? worker_thread+0x4a2/0x890
[ 36.427355] kasan_report+0x131/0x160
[ 36.428556] ? worker_thread+0x4a2/0x890
[ 36.430053] worker_thread+0x4a2/0x890
[ 36.431297] ? worker_clr_flags+0x90/0x90
[ 36.432479] kthread+0x166/0x190
[ 36.433493] ? kthread_blkcg+0x50/0x50
[ 36.434669] ret_from_fork+0x22/0x30
[ 36.435923] </TASK>
[ 36.436684]
[ 36.437215] Allocated by task 24:
[ 36.438289] kasan_set_track+0x50/0x80
[ 36.439436] __kasan_kmalloc+0x89/0xa0
[ 36.440566] smsusb_probe+0x374/0xc90
[ 36.441920] usb_probe_interface+0x2d1/0x4c0
[ 36.443253] really_probe+0x1d5/0x580
[ 36.444539] __driver_probe_device+0xe3/0x130
[ 36.446085] driver_probe_device+0x49/0x220
[ 36.447423] __device_attach_driver+0x19e/0x1b0
[ 36.448931] bus_for_each_drv+0xcb/0x110
[ 36.450217] __device_attach+0x132/0x1f0
[ 36.451470] bus_probe_device+0x59/0xf0
[ 36.452563] device_add+0x4ec/0x7b0
[ 36.453830] usb_set_configuration+0xc63/0xe10
[ 36.455230] usb_generic_driver_probe+0x3b/0x80
[ 36.456166] printk: console [ttyGS0] disabled
[ 36.456569] usb_probe_device+0x90/0x110
[ 36.459523] really_probe+0x1d5/0x580
[ 36.461027] __driver_probe_device+0xe3/0x130
[ 36.462465] driver_probe_device+0x49/0x220
[ 36.463847] __device_attach_driver+0x19e/0x1b0
[ 36.465229] bus_for_each_drv+0xcb/0x110
[ 36.466466] __device_attach+0x132/0x1f0
[ 36.467799] bus_probe_device+0x59/0xf0
[ 36.469010] device_add+0x4ec/0x7b0
[ 36.470125] usb_new_device+0x863/0xa00
[ 36.471374] hub_event+0x18c7/0x2220
[ 36.472746] process_one_work+0x34c/0x5b0
[ 36.474041] worker_thread+0x4b7/0x890
[ 36.475216] kthread+0x166/0x190
[ 36.476267] ret_from_fork+0x22/0x30
[ 36.477447]
[ 36.478160] Freed by task 24:
[ 36.479239] kasan_set_track+0x50/0x80
[ 36.480512] kasan_save_free_info+0x2b/0x40
[ 36.481808] ____kasan_slab_free+0x122/0x1a0
[ 36.483173] __kmem_cache_free+0xc4/0x200
[ 36.484563] smsusb_term_device+0xcd/0xf0
[ 36.485896] smsusb_probe+0xc85/0xc90
[ 36.486976] usb_probe_interface+0x2d1/0x4c0
[ 36.488303] really_probe+0x1d5/0x580
[ 36.489498] __driver_probe_device+0xe3/0x130
[ 36.491140] driver_probe_device+0x49/0x220
[ 36.492475] __device_attach_driver+0x19e/0x1b0
[ 36.493988] bus_for_each_drv+0xcb/0x110
[ 36.495171] __device_attach+0x132/0x1f0
[ 36.496617] bus_probe_device+0x59/0xf0
[ 36.497875] device_add+0x4ec/0x7b0
[ 36.498972] usb_set_configuration+0xc63/0xe10
[ 36.500264] usb_generic_driver_probe+0x3b/0x80
[ 36.501740] usb_probe_device+0x90/0x110
[ 36.503084] really_probe+0x1d5/0x580
[ 36.504241] __driver_probe_device+0xe3/0x130
[ 36.505548] driver_probe_device+0x49/0x220
[ 36.506766] __device_attach_driver+0x19e/0x1b0
[ 36.508368] bus_for_each_drv+0xcb/0x110
[ 36.509646] __device_attach+0x132/0x1f0
[ 36.510911] bus_probe_device+0x59/0xf0
[ 36.512103] device_add+0x4ec/0x7b0
[ 36.513215] usb_new_device+0x863/0xa00
[ 36.514736] hub_event+0x18c7/0x2220
[ 36.516130] process_one_work+
---truncated--- |
| In the Linux kernel, the following vulnerability has been resolved:
SUNRPC: double free xprt_ctxt while still in use
When an RPC request is deferred, the rq_xprt_ctxt pointer is moved out
of the svc_rqst into the svc_deferred_req.
When the deferred request is revisited, the pointer is copied into
the new svc_rqst - and also remains in the svc_deferred_req.
In the (rare?) case that the request is deferred a second time, the old
svc_deferred_req is reused - it still has all the correct content.
However in that case the rq_xprt_ctxt pointer is NOT cleared so that
when xpo_release_xprt is called, the ctxt is freed (UDP) or possible
added to a free list (RDMA).
When the deferred request is revisited for a second time, it will
reference this ctxt which may be invalid, and the free the object a
second time which is likely to oops.
So change svc_defer() to *always* clear rq_xprt_ctxt, and assert that
the value is now stored in the svc_deferred_req. |
| In the Linux kernel, the following vulnerability has been resolved:
debugobjects: Don't wake up kswapd from fill_pool()
syzbot is reporting a lockdep warning in fill_pool() because the allocation
from debugobjects is using GFP_ATOMIC, which is (__GFP_HIGH | __GFP_KSWAPD_RECLAIM)
and therefore tries to wake up kswapd, which acquires kswapd_wait::lock.
Since fill_pool() might be called with arbitrary locks held, fill_pool()
should not assume that acquiring kswapd_wait::lock is safe.
Use __GFP_HIGH instead and remove __GFP_NORETRY as it is pointless for
!__GFP_DIRECT_RECLAIM allocation. |
| In the Linux kernel, the following vulnerability has been resolved:
ipv6: Fix an uninit variable access bug in __ip6_make_skb()
Syzbot reported a bug as following:
=====================================================
BUG: KMSAN: uninit-value in arch_atomic64_inc arch/x86/include/asm/atomic64_64.h:88 [inline]
BUG: KMSAN: uninit-value in arch_atomic_long_inc include/linux/atomic/atomic-long.h:161 [inline]
BUG: KMSAN: uninit-value in atomic_long_inc include/linux/atomic/atomic-instrumented.h:1429 [inline]
BUG: KMSAN: uninit-value in __ip6_make_skb+0x2f37/0x30f0 net/ipv6/ip6_output.c:1956
arch_atomic64_inc arch/x86/include/asm/atomic64_64.h:88 [inline]
arch_atomic_long_inc include/linux/atomic/atomic-long.h:161 [inline]
atomic_long_inc include/linux/atomic/atomic-instrumented.h:1429 [inline]
__ip6_make_skb+0x2f37/0x30f0 net/ipv6/ip6_output.c:1956
ip6_finish_skb include/net/ipv6.h:1122 [inline]
ip6_push_pending_frames+0x10e/0x550 net/ipv6/ip6_output.c:1987
rawv6_push_pending_frames+0xb12/0xb90 net/ipv6/raw.c:579
rawv6_sendmsg+0x297e/0x2e60 net/ipv6/raw.c:922
inet_sendmsg+0x101/0x180 net/ipv4/af_inet.c:827
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg net/socket.c:734 [inline]
____sys_sendmsg+0xa8e/0xe70 net/socket.c:2476
___sys_sendmsg+0x2a1/0x3f0 net/socket.c:2530
__sys_sendmsg net/socket.c:2559 [inline]
__do_sys_sendmsg net/socket.c:2568 [inline]
__se_sys_sendmsg net/socket.c:2566 [inline]
__x64_sys_sendmsg+0x367/0x540 net/socket.c:2566
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
Uninit was created at:
slab_post_alloc_hook mm/slab.h:766 [inline]
slab_alloc_node mm/slub.c:3452 [inline]
__kmem_cache_alloc_node+0x71f/0xce0 mm/slub.c:3491
__do_kmalloc_node mm/slab_common.c:967 [inline]
__kmalloc_node_track_caller+0x114/0x3b0 mm/slab_common.c:988
kmalloc_reserve net/core/skbuff.c:492 [inline]
__alloc_skb+0x3af/0x8f0 net/core/skbuff.c:565
alloc_skb include/linux/skbuff.h:1270 [inline]
__ip6_append_data+0x51c1/0x6bb0 net/ipv6/ip6_output.c:1684
ip6_append_data+0x411/0x580 net/ipv6/ip6_output.c:1854
rawv6_sendmsg+0x2882/0x2e60 net/ipv6/raw.c:915
inet_sendmsg+0x101/0x180 net/ipv4/af_inet.c:827
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg net/socket.c:734 [inline]
____sys_sendmsg+0xa8e/0xe70 net/socket.c:2476
___sys_sendmsg+0x2a1/0x3f0 net/socket.c:2530
__sys_sendmsg net/socket.c:2559 [inline]
__do_sys_sendmsg net/socket.c:2568 [inline]
__se_sys_sendmsg net/socket.c:2566 [inline]
__x64_sys_sendmsg+0x367/0x540 net/socket.c:2566
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
It is because icmp6hdr does not in skb linear region under the scenario
of SOCK_RAW socket. Access icmp6_hdr(skb)->icmp6_type directly will
trigger the uninit variable access bug.
Use a local variable icmp6_type to carry the correct value in different
scenarios. |
| In the Linux kernel, the following vulnerability has been resolved:
fs/sysv: Null check to prevent null-ptr-deref bug
sb_getblk(inode->i_sb, parent) return a null ptr and taking lock on
that leads to the null-ptr-deref bug. |
| In the Linux kernel, the following vulnerability has been resolved:
drm/amdkfd: Add missing gfx11 MQD manager callbacks
mqd_stride function was introduced in commit 2f77b9a242a2
("drm/amdkfd: Update MQD management on multi XCC setup")
but not assigned for gfx11. Fixes a NULL dereference in debugfs. |
| In the Linux kernel, the following vulnerability has been resolved:
soundwire: bus: Fix unbalanced pm_runtime_put() causing usage count underflow
This reverts commit
443a98e649b4 ("soundwire: bus: use pm_runtime_resume_and_get()")
Change calls to pm_runtime_resume_and_get() back to pm_runtime_get_sync().
This fixes a usage count underrun caused by doing a pm_runtime_put() even
though pm_runtime_resume_and_get() returned an error.
The three affected functions ignore -EACCES error from trying to get
pm_runtime, and carry on, including a put at the end of the function.
But pm_runtime_resume_and_get() does not increment the usage count if it
returns an error. So in the -EACCES case you must not call
pm_runtime_put().
The documentation for pm_runtime_get_sync() says:
"Consider using pm_runtime_resume_and_get() ... as this is likely to
result in cleaner code."
In this case I don't think it results in cleaner code because the
pm_runtime_put() at the end of the function would have to be conditional on
the return value from pm_runtime_resume_and_get() at the top of the
function.
pm_runtime_get_sync() doesn't have this problem because it always
increments the count, so always needs a put. The code can just flow through
and do the pm_runtime_put() unconditionally. |
