| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| In the Linux kernel, the following vulnerability has been resolved:
of: overlay: Call of_changeset_init() early
When of_overlay_fdt_apply() fails, the changeset may be partially
applied, and the caller is still expected to call of_overlay_remove() to
clean up this partial state.
However, of_overlay_apply() calls of_resolve_phandles() before
init_overlay_changeset(). Hence if the overlay fails to apply due to an
unresolved symbol, the overlay_changeset.cset.entries list is still
uninitialized, and cleanup will crash with a NULL-pointer dereference in
overlay_removal_is_ok().
Fix this by moving the call to of_changeset_init() from
init_overlay_changeset() to of_overlay_fdt_apply(), where all other
early initialization is done. |
| In the Linux kernel, the following vulnerability has been resolved:
net: Fix load-tearing on sk->sk_stamp in sock_recv_cmsgs().
KCSAN found a data race in sock_recv_cmsgs() where the read access
to sk->sk_stamp needs READ_ONCE().
BUG: KCSAN: data-race in packet_recvmsg / packet_recvmsg
write (marked) to 0xffff88803c81f258 of 8 bytes by task 19171 on cpu 0:
sock_write_timestamp include/net/sock.h:2670 [inline]
sock_recv_cmsgs include/net/sock.h:2722 [inline]
packet_recvmsg+0xb97/0xd00 net/packet/af_packet.c:3489
sock_recvmsg_nosec net/socket.c:1019 [inline]
sock_recvmsg+0x11a/0x130 net/socket.c:1040
sock_read_iter+0x176/0x220 net/socket.c:1118
call_read_iter include/linux/fs.h:1845 [inline]
new_sync_read fs/read_write.c:389 [inline]
vfs_read+0x5e0/0x630 fs/read_write.c:470
ksys_read+0x163/0x1a0 fs/read_write.c:613
__do_sys_read fs/read_write.c:623 [inline]
__se_sys_read fs/read_write.c:621 [inline]
__x64_sys_read+0x41/0x50 fs/read_write.c:621
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x72/0xdc
read to 0xffff88803c81f258 of 8 bytes by task 19183 on cpu 1:
sock_recv_cmsgs include/net/sock.h:2721 [inline]
packet_recvmsg+0xb64/0xd00 net/packet/af_packet.c:3489
sock_recvmsg_nosec net/socket.c:1019 [inline]
sock_recvmsg+0x11a/0x130 net/socket.c:1040
sock_read_iter+0x176/0x220 net/socket.c:1118
call_read_iter include/linux/fs.h:1845 [inline]
new_sync_read fs/read_write.c:389 [inline]
vfs_read+0x5e0/0x630 fs/read_write.c:470
ksys_read+0x163/0x1a0 fs/read_write.c:613
__do_sys_read fs/read_write.c:623 [inline]
__se_sys_read fs/read_write.c:621 [inline]
__x64_sys_read+0x41/0x50 fs/read_write.c:621
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x72/0xdc
value changed: 0xffffffffc4653600 -> 0x0000000000000000
Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 19183 Comm: syz-executor.5 Not tainted 6.3.0-rc7-02330-gca6270c12e20 #2
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014 |
| NULL Pointer Dereference vulnerability in Avast Antivirus on MacOS, Avast Anitvirus on Linux when scanning a malformed Windows PE file causes the antivirus process to crash.This issue affects Antivirus: 16.0.0; Anitvirus: 3.0.3. |
| In the Linux kernel, the following vulnerability has been resolved:
erofs: fix crafted invalid cases for encoded extents
Robert recently reported two corrupted images that can cause system
crashes, which are related to the new encoded extents introduced
in Linux 6.15:
- The first one [1] has plen != 0 (e.g. plen == 0x2000000) but
(plen & Z_EROFS_EXTENT_PLEN_MASK) == 0. It is used to represent
special extents such as sparse extents (!EROFS_MAP_MAPPED), but
previously only plen == 0 was handled;
- The second one [2] has pa 0xffffffffffdcffed and plen 0xb4000,
then "cur [0xfffffffffffff000] += bvec.bv_len [0x1000]" in
"} while ((cur += bvec.bv_len) < end);" wraps around, causing an
out-of-bound access of pcl->compressed_bvecs[] in
z_erofs_submit_queue(). EROFS only supports 48-bit physical block
addresses (up to 1EiB for 4k blocks), so add a sanity check to
enforce this. |
| Integer overflow or wraparound in the Linux kernel-mode driver for some Intel(R) 800 Series Ethernet before version 1.17.2 may allow an authenticated user to potentially enable escalation of privilege via local access. |
| In the Linux kernel, the following vulnerability has been resolved:
mm/damon/sysfs: catch commit test ctx alloc failure
Patch series "mm/damon/sysfs: fix commit test damon_ctx [de]allocation".
DAMON sysfs interface dynamically allocates and uses a damon_ctx object
for testing if given inputs for online DAMON parameters update is valid.
The object is being used without an allocation failure check, and leaked
when the test succeeds. Fix the two bugs.
This patch (of 2):
The damon_ctx for testing online DAMON parameters commit inputs is used
without its allocation failure check. This could result in an invalid
memory access. Fix it by directly returning an error when the allocation
failed. |
| In the Linux kernel, the following vulnerability has been resolved:
media: dvb-usb: fix memory leak in dvb_usb_adapter_init()
Syzbot reports a memory leak in "dvb_usb_adapter_init()".
The leak is due to not accounting for and freeing current iteration's
adapter->priv in case of an error. Currently if an error occurs,
it will exit before incrementing "num_adapters_initalized",
which is used as a reference counter to free all adap->priv
in "dvb_usb_adapter_exit()". There are multiple error paths that
can exit from before incrementing the counter. Including the
error handling paths for "dvb_usb_adapter_stream_init()",
"dvb_usb_adapter_dvb_init()" and "dvb_usb_adapter_frontend_init()"
within "dvb_usb_adapter_init()".
This means that in case of an error in any of these functions the
current iteration is not accounted for and the current iteration's
adap->priv is not freed.
Fix this by freeing the current iteration's adap->priv in the
"stream_init_err:" label in the error path. The rest of the
(accounted for) adap->priv objects are freed in dvb_usb_adapter_exit()
as expected using the num_adapters_initalized variable.
Syzbot report:
BUG: memory leak
unreferenced object 0xffff8881172f1a00 (size 512):
comm "kworker/0:2", pid 139, jiffies 4294994873 (age 10.960s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff844af012>] dvb_usb_adapter_init drivers/media/usb/dvb-usb/dvb-usb-init.c:75 [inline]
[<ffffffff844af012>] dvb_usb_init drivers/media/usb/dvb-usb/dvb-usb-init.c:184 [inline]
[<ffffffff844af012>] dvb_usb_device_init.cold+0x4e5/0x79e drivers/media/usb/dvb-usb/dvb-usb-init.c:308
[<ffffffff830db21d>] dib0700_probe+0x8d/0x1b0 drivers/media/usb/dvb-usb/dib0700_core.c:883
[<ffffffff82d3fdc7>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396
[<ffffffff8274ab37>] call_driver_probe drivers/base/dd.c:542 [inline]
[<ffffffff8274ab37>] really_probe.part.0+0xe7/0x310 drivers/base/dd.c:621
[<ffffffff8274ae6c>] really_probe drivers/base/dd.c:583 [inline]
[<ffffffff8274ae6c>] __driver_probe_device+0x10c/0x1e0 drivers/base/dd.c:752
[<ffffffff8274af6a>] driver_probe_device+0x2a/0x120 drivers/base/dd.c:782
[<ffffffff8274b786>] __device_attach_driver+0xf6/0x140 drivers/base/dd.c:899
[<ffffffff82747c87>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:427
[<ffffffff8274b352>] __device_attach+0x122/0x260 drivers/base/dd.c:970
[<ffffffff827498f6>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:487
[<ffffffff82745cdb>] device_add+0x5fb/0xdf0 drivers/base/core.c:3405
[<ffffffff82d3d202>] usb_set_configuration+0x8f2/0xb80 drivers/usb/core/message.c:2170
[<ffffffff82d4dbfc>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238
[<ffffffff82d3f49c>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293
[<ffffffff8274ab37>] call_driver_probe drivers/base/dd.c:542 [inline]
[<ffffffff8274ab37>] really_probe.part.0+0xe7/0x310 drivers/base/dd.c:621
[<ffffffff8274ae6c>] really_probe drivers/base/dd.c:583 [inline]
[<ffffffff8274ae6c>] __driver_probe_device+0x10c/0x1e0 drivers/base/dd.c:752 |
| In the Linux kernel, the following vulnerability has been resolved:
ppp: associate skb with a device at tx
Syzkaller triggered flow dissector warning with the following:
r0 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000000), 0xc0802, 0x0)
ioctl$PPPIOCNEWUNIT(r0, 0xc004743e, &(0x7f00000000c0))
ioctl$PPPIOCSACTIVE(r0, 0x40107446, &(0x7f0000000240)={0x2, &(0x7f0000000180)=[{0x20, 0x0, 0x0, 0xfffff034}, {0x6}]})
pwritev(r0, &(0x7f0000000040)=[{&(0x7f0000000140)='\x00!', 0x2}], 0x1, 0x0, 0x0)
[ 9.485814] WARNING: CPU: 3 PID: 329 at net/core/flow_dissector.c:1016 __skb_flow_dissect+0x1ee0/0x1fa0
[ 9.485929] skb_get_poff+0x53/0xa0
[ 9.485937] bpf_skb_get_pay_offset+0xe/0x20
[ 9.485944] ? ppp_send_frame+0xc2/0x5b0
[ 9.485949] ? _raw_spin_unlock_irqrestore+0x40/0x60
[ 9.485958] ? __ppp_xmit_process+0x7a/0xe0
[ 9.485968] ? ppp_xmit_process+0x5b/0xb0
[ 9.485974] ? ppp_write+0x12a/0x190
[ 9.485981] ? do_iter_write+0x18e/0x2d0
[ 9.485987] ? __import_iovec+0x30/0x130
[ 9.485997] ? do_pwritev+0x1b6/0x240
[ 9.486016] ? trace_hardirqs_on+0x47/0x50
[ 9.486023] ? __x64_sys_pwritev+0x24/0x30
[ 9.486026] ? do_syscall_64+0x3d/0x80
[ 9.486031] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd
Flow dissector tries to find skb net namespace either via device
or via socket. Neigher is set in ppp_send_frame, so let's manually
use ppp->dev. |
| In the Linux kernel, the following vulnerability has been resolved:
netlink: annotate accesses to nlk->cb_running
Both netlink_recvmsg() and netlink_native_seq_show() read
nlk->cb_running locklessly. Use READ_ONCE() there.
Add corresponding WRITE_ONCE() to netlink_dump() and
__netlink_dump_start()
syzbot reported:
BUG: KCSAN: data-race in __netlink_dump_start / netlink_recvmsg
write to 0xffff88813ea4db59 of 1 bytes by task 28219 on cpu 0:
__netlink_dump_start+0x3af/0x4d0 net/netlink/af_netlink.c:2399
netlink_dump_start include/linux/netlink.h:308 [inline]
rtnetlink_rcv_msg+0x70f/0x8c0 net/core/rtnetlink.c:6130
netlink_rcv_skb+0x126/0x220 net/netlink/af_netlink.c:2577
rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:6192
netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
netlink_unicast+0x56f/0x640 net/netlink/af_netlink.c:1365
netlink_sendmsg+0x665/0x770 net/netlink/af_netlink.c:1942
sock_sendmsg_nosec net/socket.c:724 [inline]
sock_sendmsg net/socket.c:747 [inline]
sock_write_iter+0x1aa/0x230 net/socket.c:1138
call_write_iter include/linux/fs.h:1851 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x463/0x760 fs/read_write.c:584
ksys_write+0xeb/0x1a0 fs/read_write.c:637
__do_sys_write fs/read_write.c:649 [inline]
__se_sys_write fs/read_write.c:646 [inline]
__x64_sys_write+0x42/0x50 fs/read_write.c:646
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 0xffff88813ea4db59 of 1 bytes by task 28222 on cpu 1:
netlink_recvmsg+0x3b4/0x730 net/netlink/af_netlink.c:2022
sock_recvmsg_nosec+0x4c/0x80 net/socket.c:1017
____sys_recvmsg+0x2db/0x310 net/socket.c:2718
___sys_recvmsg net/socket.c:2762 [inline]
do_recvmmsg+0x2e5/0x710 net/socket.c:2856
__sys_recvmmsg net/socket.c:2935 [inline]
__do_sys_recvmmsg net/socket.c:2958 [inline]
__se_sys_recvmmsg net/socket.c:2951 [inline]
__x64_sys_recvmmsg+0xe2/0x160 net/socket.c:2951
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: 0x00 -> 0x01 |
| In the Linux kernel, the following vulnerability has been resolved:
RDMA/bnxt_re: Prevent handling any completions after qp destroy
HW may generate completions that indicates QP is destroyed.
Driver should not be scheduling any more completion handlers
for this QP, after the QP is destroyed. Since CQs are active
during the QP destroy, driver may still schedule completion
handlers. This can cause a race where the destroy_cq and poll_cq
running simultaneously.
Snippet of kernel panic while doing bnxt_re driver load unload in loop.
This indicates a poll after the CQ is freed.
[77786.481636] Call Trace:
[77786.481640] <TASK>
[77786.481644] bnxt_re_poll_cq+0x14a/0x620 [bnxt_re]
[77786.481658] ? kvm_clock_read+0x14/0x30
[77786.481693] __ib_process_cq+0x57/0x190 [ib_core]
[77786.481728] ib_cq_poll_work+0x26/0x80 [ib_core]
[77786.481761] process_one_work+0x1e5/0x3f0
[77786.481768] worker_thread+0x50/0x3a0
[77786.481785] ? __pfx_worker_thread+0x10/0x10
[77786.481790] kthread+0xe2/0x110
[77786.481794] ? __pfx_kthread+0x10/0x10
[77786.481797] ret_from_fork+0x2c/0x50
To avoid this, complete all completion handlers before returning the
destroy QP. If free_cq is called soon after destroy_qp, IB stack
will cancel the CQ work before invoking the destroy_cq verb and
this will prevent any race mentioned. |
| In the Linux kernel, the following vulnerability has been resolved:
exfat: use kvmalloc_array/kvfree instead of kmalloc_array/kfree
The call stack shown below is a scenario in the Linux 4.19 kernel.
Allocating memory failed where exfat fs use kmalloc_array due to
system memory fragmentation, while the u-disk was inserted without
recognition.
Devices such as u-disk using the exfat file system are pluggable and
may be insert into the system at any time.
However, long-term running systems cannot guarantee the continuity of
physical memory. Therefore, it's necessary to address this issue.
Binder:2632_6: page allocation failure: order:4,
mode:0x6040c0(GFP_KERNEL|__GFP_COMP), nodemask=(null)
Call trace:
[242178.097582] dump_backtrace+0x0/0x4
[242178.097589] dump_stack+0xf4/0x134
[242178.097598] warn_alloc+0xd8/0x144
[242178.097603] __alloc_pages_nodemask+0x1364/0x1384
[242178.097608] kmalloc_order+0x2c/0x510
[242178.097612] kmalloc_order_trace+0x40/0x16c
[242178.097618] __kmalloc+0x360/0x408
[242178.097624] load_alloc_bitmap+0x160/0x284
[242178.097628] exfat_fill_super+0xa3c/0xe7c
[242178.097635] mount_bdev+0x2e8/0x3a0
[242178.097638] exfat_fs_mount+0x40/0x50
[242178.097643] mount_fs+0x138/0x2e8
[242178.097649] vfs_kern_mount+0x90/0x270
[242178.097655] do_mount+0x798/0x173c
[242178.097659] ksys_mount+0x114/0x1ac
[242178.097665] __arm64_sys_mount+0x24/0x34
[242178.097671] el0_svc_common+0xb8/0x1b8
[242178.097676] el0_svc_handler+0x74/0x90
[242178.097681] el0_svc+0x8/0x340
By analyzing the exfat code,we found that continuous physical memory
is not required here,so kvmalloc_array is used can solve this problem. |
| 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:
refscale: Fix uninitalized use of wait_queue_head_t
Running the refscale test occasionally crashes the kernel with the
following error:
[ 8569.952896] BUG: unable to handle page fault for address: ffffffffffffffe8
[ 8569.952900] #PF: supervisor read access in kernel mode
[ 8569.952902] #PF: error_code(0x0000) - not-present page
[ 8569.952904] PGD c4b048067 P4D c4b049067 PUD c4b04b067 PMD 0
[ 8569.952910] Oops: 0000 [#1] PREEMPT_RT SMP NOPTI
[ 8569.952916] Hardware name: Dell Inc. PowerEdge R750/0WMWCR, BIOS 1.2.4 05/28/2021
[ 8569.952917] RIP: 0010:prepare_to_wait_event+0x101/0x190
:
[ 8569.952940] Call Trace:
[ 8569.952941] <TASK>
[ 8569.952944] ref_scale_reader+0x380/0x4a0 [refscale]
[ 8569.952959] kthread+0x10e/0x130
[ 8569.952966] ret_from_fork+0x1f/0x30
[ 8569.952973] </TASK>
The likely cause is that init_waitqueue_head() is called after the call to
the torture_create_kthread() function that creates the ref_scale_reader
kthread. Although this init_waitqueue_head() call will very likely
complete before this kthread is created and starts running, it is
possible that the calling kthread will be delayed between the calls to
torture_create_kthread() and init_waitqueue_head(). In this case, the
new kthread will use the waitqueue head before it is properly initialized,
which is not good for the kernel's health and well-being.
The above crash happened here:
static inline void __add_wait_queue(...)
{
:
if (!(wq->flags & WQ_FLAG_PRIORITY)) <=== Crash here
The offset of flags from list_head entry in wait_queue_entry is
-0x18. If reader_tasks[i].wq.head.next is NULL as allocated reader_task
structure is zero initialized, the instruction will try to access address
0xffffffffffffffe8, which is exactly the fault address listed above.
This commit therefore invokes init_waitqueue_head() before creating
the kthread. |
| In the Linux kernel, the following vulnerability has been resolved:
usb: gadget: f_acm: Refactor bind path to use __free()
After an bind/unbind cycle, the acm->notify_req is left stale. If a
subsequent bind fails, the unified error label attempts to free this
stale request, leading to a NULL pointer dereference when accessing
ep->ops->free_request.
Refactor the error handling in the bind path to use the __free()
automatic cleanup mechanism.
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000020
Call trace:
usb_ep_free_request+0x2c/0xec
gs_free_req+0x30/0x44
acm_bind+0x1b8/0x1f4
usb_add_function+0xcc/0x1f0
configfs_composite_bind+0x468/0x588
gadget_bind_driver+0x104/0x270
really_probe+0x190/0x374
__driver_probe_device+0xa0/0x12c
driver_probe_device+0x3c/0x218
__device_attach_driver+0x14c/0x188
bus_for_each_drv+0x10c/0x168
__device_attach+0xfc/0x198
device_initial_probe+0x14/0x24
bus_probe_device+0x94/0x11c
device_add+0x268/0x48c
usb_add_gadget+0x198/0x28c
dwc3_gadget_init+0x700/0x858
__dwc3_set_mode+0x3cc/0x664
process_scheduled_works+0x1d8/0x488
worker_thread+0x244/0x334
kthread+0x114/0x1bc
ret_from_fork+0x10/0x20 |
| In the Linux kernel, the following vulnerability has been resolved:
scsi: pm80xx: Fix array-index-out-of-of-bounds on rmmod
Since commit f7b705c238d1 ("scsi: pm80xx: Set phy_attached to zero when
device is gone") UBSAN reports:
UBSAN: array-index-out-of-bounds in drivers/scsi/pm8001/pm8001_sas.c:786:17
index 28 is out of range for type 'pm8001_phy [16]'
on rmmod when using an expander.
For a direct attached device, attached_phy contains the local phy id.
For a device behind an expander, attached_phy contains the remote phy
id, not the local phy id.
I.e. while pm8001_ha will have pm8001_ha->chip->n_phy local phys, for a
device behind an expander, attached_phy can be much larger than
pm8001_ha->chip->n_phy (depending on the amount of phys of the
expander).
E.g. on my system pm8001_ha has 8 phys with phy ids 0-7. One of the
ports has an expander connected. The expander has 31 phys with phy ids
0-30.
The pm8001_ha->phy array only contains the phys of the HBA. It does not
contain the phys of the expander. Thus, it is wrong to use attached_phy
to index the pm8001_ha->phy array for a device behind an expander.
Thus, we can only clear phy_attached for devices that are directly
attached. |
| In the Linux kernel, the following vulnerability has been resolved:
LoongArch: BPF: No support of struct argument in trampoline programs
The current implementation does not support struct argument. This causes
a oops when running bpf selftest:
$ ./test_progs -a tracing_struct
Oops[#1]:
CPU -1 Unable to handle kernel paging request at virtual address 0000000000000018, era == 9000000085bef268, ra == 90000000844f3938
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...0: (19 ticks this GP) idle=1094/1/0x4000000000000000 softirq=1380/1382 fqs=801
rcu: (detected by 0, t=5252 jiffies, g=1197, q=52 ncpus=4)
Sending NMI from CPU 0 to CPUs 1:
rcu: rcu_preempt kthread starved for 2495 jiffies! g1197 f0x0 RCU_GP_DOING_FQS(6) ->state=0x0 ->cpu=2
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:I stack:0 pid:15 tgid:15 ppid:2 task_flags:0x208040 flags:0x00000800
Stack : 9000000100423e80 0000000000000402 0000000000000010 90000001003b0680
9000000085d88000 0000000000000000 0000000000000040 9000000087159350
9000000085c2b9b0 0000000000000001 900000008704a000 0000000000000005
00000000ffff355b 00000000ffff355b 0000000000000000 0000000000000004
9000000085d90510 0000000000000000 0000000000000002 7b5d998f8281e86e
00000000ffff355c 7b5d998f8281e86e 000000000000003f 9000000087159350
900000008715bf98 0000000000000005 9000000087036000 900000008704a000
9000000100407c98 90000001003aff80 900000008715c4c0 9000000085c2b9b0
00000000ffff355b 9000000085c33d3c 00000000000000b4 0000000000000000
9000000007002150 00000000ffff355b 9000000084615480 0000000007000002
...
Call Trace:
[<9000000085c2a868>] __schedule+0x410/0x1520
[<9000000085c2b9ac>] schedule+0x34/0x190
[<9000000085c33d38>] schedule_timeout+0x98/0x140
[<90000000845e9120>] rcu_gp_fqs_loop+0x5f8/0x868
[<90000000845ed538>] rcu_gp_kthread+0x260/0x2e0
[<900000008454e8a4>] kthread+0x144/0x238
[<9000000085c26b60>] ret_from_kernel_thread+0x28/0xc8
[<90000000844f20e4>] ret_from_kernel_thread_asm+0xc/0x88
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 2:
NMI backtrace for cpu 2 skipped: idling at idle_exit+0x0/0x4
Reject it for now. |
| In the Linux kernel, the following vulnerability has been resolved:
media: iris: fix module removal if firmware download failed
Fix remove if firmware failed to load:
qcom-iris aa00000.video-codec: Direct firmware load for qcom/vpu/vpu33_p4.mbn failed with error -2
qcom-iris aa00000.video-codec: firmware download failed
qcom-iris aa00000.video-codec: core init failed
then:
$ echo aa00000.video-codec > /sys/bus/platform/drivers/qcom-iris/unbind
Triggers:
genpd genpd:1:aa00000.video-codec: Runtime PM usage count underflow!
------------[ cut here ]------------
video_cc_mvs0_clk already disabled
WARNING: drivers/clk/clk.c:1206 at clk_core_disable+0xa4/0xac, CPU#1: sh/542
<snip>
pc : clk_core_disable+0xa4/0xac
lr : clk_core_disable+0xa4/0xac
<snip>
Call trace:
clk_core_disable+0xa4/0xac (P)
clk_disable+0x30/0x4c
iris_disable_unprepare_clock+0x20/0x48 [qcom_iris]
iris_vpu_power_off_hw+0x48/0x58 [qcom_iris]
iris_vpu33_power_off_hardware+0x44/0x230 [qcom_iris]
iris_vpu_power_off+0x34/0x84 [qcom_iris]
iris_core_deinit+0x44/0xc8 [qcom_iris]
iris_remove+0x20/0x48 [qcom_iris]
platform_remove+0x20/0x30
device_remove+0x4c/0x80
<snip>
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
video_cc_mvs0_clk already unprepared
WARNING: drivers/clk/clk.c:1065 at clk_core_unprepare+0xf0/0x110, CPU#2: sh/542
<snip>
pc : clk_core_unprepare+0xf0/0x110
lr : clk_core_unprepare+0xf0/0x110
<snip>
Call trace:
clk_core_unprepare+0xf0/0x110 (P)
clk_unprepare+0x2c/0x44
iris_disable_unprepare_clock+0x28/0x48 [qcom_iris]
iris_vpu_power_off_hw+0x48/0x58 [qcom_iris]
iris_vpu33_power_off_hardware+0x44/0x230 [qcom_iris]
iris_vpu_power_off+0x34/0x84 [qcom_iris]
iris_core_deinit+0x44/0xc8 [qcom_iris]
iris_remove+0x20/0x48 [qcom_iris]
platform_remove+0x20/0x30
device_remove+0x4c/0x80
<snip>
---[ end trace 0000000000000000 ]---
genpd genpd:0:aa00000.video-codec: Runtime PM usage count underflow!
------------[ cut here ]------------
gcc_video_axi0_clk already disabled
WARNING: drivers/clk/clk.c:1206 at clk_core_disable+0xa4/0xac, CPU#4: sh/542
<snip>
pc : clk_core_disable+0xa4/0xac
lr : clk_core_disable+0xa4/0xac
<snip>
Call trace:
clk_core_disable+0xa4/0xac (P)
clk_disable+0x30/0x4c
iris_disable_unprepare_clock+0x20/0x48 [qcom_iris]
iris_vpu33_power_off_controller+0x17c/0x428 [qcom_iris]
iris_vpu_power_off+0x48/0x84 [qcom_iris]
iris_core_deinit+0x44/0xc8 [qcom_iris]
iris_remove+0x20/0x48 [qcom_iris]
platform_remove+0x20/0x30
device_remove+0x4c/0x80
<snip>
------------[ cut here ]------------
gcc_video_axi0_clk already unprepared
WARNING: drivers/clk/clk.c:1065 at clk_core_unprepare+0xf0/0x110, CPU#4: sh/542
<snip>
pc : clk_core_unprepare+0xf0/0x110
lr : clk_core_unprepare+0xf0/0x110
<snip>
Call trace:
clk_core_unprepare+0xf0/0x110 (P)
clk_unprepare+0x2c/0x44
iris_disable_unprepare_clock+0x28/0x48 [qcom_iris]
iris_vpu33_power_off_controller+0x17c/0x428 [qcom_iris]
iris_vpu_power_off+0x48/0x84 [qcom_iris]
iris_core_deinit+0x44/0xc8 [qcom_iris]
iris_remove+0x20/0x48 [qcom_iris]
platform_remove+0x20/0x30
device_remove+0x4c/0x80
<snip>
---[ end trace 0000000000000000 ]---
Skip deinit if initialization never succeeded. |
| In the Linux kernel, the following vulnerability has been resolved:
xfrm: also call xfrm_state_delete_tunnel at destroy time for states that were never added
In commit b441cf3f8c4b ("xfrm: delete x->tunnel as we delete x"), I
missed the case where state creation fails between full
initialization (->init_state has been called) and being inserted on
the lists.
In this situation, ->init_state has been called, so for IPcomp
tunnels, the fallback tunnel has been created and added onto the
lists, but the user state never gets added, because we fail before
that. The user state doesn't go through __xfrm_state_delete, so we
don't call xfrm_state_delete_tunnel for those states, and we end up
leaking the FB tunnel.
There are several codepaths affected by this: the add/update paths, in
both net/key and xfrm, and the migrate code (xfrm_migrate,
xfrm_state_migrate). A "proper" rollback of the init_state work would
probably be doable in the add/update code, but for migrate it gets
more complicated as multiple states may be involved.
At some point, the new (not-inserted) state will be destroyed, so call
xfrm_state_delete_tunnel during xfrm_state_gc_destroy. Most states
will have their fallback tunnel cleaned up during __xfrm_state_delete,
which solves the issue that b441cf3f8c4b (and other patches before it)
aimed at. All states (including FB tunnels) will be removed from the
lists once xfrm_state_fini has called flush_work(&xfrm_state_gc_work). |
| In the Linux kernel, the following vulnerability has been resolved:
NFSD: Define actions for the new time_deleg FATTR4 attributes
NFSv4 clients won't send legitimate GETATTR requests for these new
attributes because they are intended to be used only with CB_GETATTR
and SETATTR. But NFSD has to do something besides crashing if it
ever sees a GETATTR request that queries these attributes.
RFC 8881 Section 18.7.3 states:
> The server MUST return a value for each attribute that the client
> requests if the attribute is supported by the server for the
> target file system. If the server does not support a particular
> attribute on the target file system, then it MUST NOT return the
> attribute value and MUST NOT set the attribute bit in the result
> bitmap. The server MUST return an error if it supports an
> attribute on the target but cannot obtain its value. In that case,
> no attribute values will be returned.
Further, RFC 9754 Section 5 states:
> These new attributes are invalid to be used with GETATTR, VERIFY,
> and NVERIFY, and they can only be used with CB_GETATTR and SETATTR
> by a client holding an appropriate delegation.
Thus there does not appear to be a specific server response mandated
by specification. Taking the guidance that querying these attributes
via GETATTR is "invalid", NFSD will return nfserr_inval, failing the
request entirely. |
| In the Linux kernel, the following vulnerability has been resolved:
net: usb: qmi_wwan: initialize MAC header offset in qmimux_rx_fixup
Raw IP packets have no MAC header, leaving skb->mac_header uninitialized.
This can trigger kernel panics on ARM64 when xfrm or other subsystems
access the offset due to strict alignment checks.
Initialize the MAC header to prevent such crashes.
This can trigger kernel panics on ARM when running IPsec over the
qmimux0 interface.
Example trace:
Internal error: Oops: 000000009600004f [#1] SMP
CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.34-gbe78e49cb433 #1
Hardware name: LS1028A RDB Board (DT)
pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : xfrm_input+0xde8/0x1318
lr : xfrm_input+0x61c/0x1318
sp : ffff800080003b20
Call trace:
xfrm_input+0xde8/0x1318
xfrm6_rcv+0x38/0x44
xfrm6_esp_rcv+0x48/0xa8
ip6_protocol_deliver_rcu+0x94/0x4b0
ip6_input_finish+0x44/0x70
ip6_input+0x44/0xc0
ipv6_rcv+0x6c/0x114
__netif_receive_skb_one_core+0x5c/0x8c
__netif_receive_skb+0x18/0x60
process_backlog+0x78/0x17c
__napi_poll+0x38/0x180
net_rx_action+0x168/0x2f0 |
