| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| In the Linux kernel, the following vulnerability has been resolved:
clk: ti: dra7-atl: Fix reference leak in of_dra7_atl_clk_probe
pm_runtime_get_sync() will increment pm usage counter.
Forgetting to putting operation will result in reference leak.
Add missing pm_runtime_put_sync in some error paths. |
| In the Linux kernel, the following vulnerability has been resolved:
net: do not allow gso_size to be set to GSO_BY_FRAGS
One missing check in virtio_net_hdr_to_skb() allowed
syzbot to crash kernels again [1]
Do not allow gso_size to be set to GSO_BY_FRAGS (0xffff),
because this magic value is used by the kernel.
[1]
general protection fault, probably for non-canonical address 0xdffffc000000000e: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000070-0x0000000000000077]
CPU: 0 PID: 5039 Comm: syz-executor401 Not tainted 6.5.0-rc5-next-20230809-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:skb_segment+0x1a52/0x3ef0 net/core/skbuff.c:4500
Code: 00 00 00 e9 ab eb ff ff e8 6b 96 5d f9 48 8b 84 24 00 01 00 00 48 8d 78 70 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e ea 21 00 00 48 8b 84 24 00 01
RSP: 0018:ffffc90003d3f1c8 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 000000000001fffe RCX: 0000000000000000
RDX: 000000000000000e RSI: ffffffff882a3115 RDI: 0000000000000070
RBP: ffffc90003d3f378 R08: 0000000000000005 R09: 000000000000ffff
R10: 000000000000ffff R11: 5ee4a93e456187d6 R12: 000000000001ffc6
R13: dffffc0000000000 R14: 0000000000000008 R15: 000000000000ffff
FS: 00005555563f2380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020020000 CR3: 000000001626d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
udp6_ufo_fragment+0x9d2/0xd50 net/ipv6/udp_offload.c:109
ipv6_gso_segment+0x5c4/0x17b0 net/ipv6/ip6_offload.c:120
skb_mac_gso_segment+0x292/0x610 net/core/gso.c:53
__skb_gso_segment+0x339/0x710 net/core/gso.c:124
skb_gso_segment include/net/gso.h:83 [inline]
validate_xmit_skb+0x3a5/0xf10 net/core/dev.c:3625
__dev_queue_xmit+0x8f0/0x3d60 net/core/dev.c:4329
dev_queue_xmit include/linux/netdevice.h:3082 [inline]
packet_xmit+0x257/0x380 net/packet/af_packet.c:276
packet_snd net/packet/af_packet.c:3087 [inline]
packet_sendmsg+0x24c7/0x5570 net/packet/af_packet.c:3119
sock_sendmsg_nosec net/socket.c:727 [inline]
sock_sendmsg+0xd9/0x180 net/socket.c:750
____sys_sendmsg+0x6ac/0x940 net/socket.c:2496
___sys_sendmsg+0x135/0x1d0 net/socket.c:2550
__sys_sendmsg+0x117/0x1e0 net/socket.c:2579
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ff27cdb34d9 |
| In the Linux kernel, the following vulnerability has been resolved:
media: s5p-mfc: Clear workbit to handle error condition
During error on CLOSE_INSTANCE command, ctx_work_bits was not getting
cleared. During consequent mfc execution NULL pointer dereferencing of
this context led to kernel panic. This patch fixes this issue by making
sure to clear ctx_work_bits always. |
| In the Linux kernel, the following vulnerability has been resolved:
ipv6: ensure sane device mtu in tunnels
Another syzbot report [1] with no reproducer hints
at a bug in ip6_gre tunnel (dev:ip6gretap0)
Since ipv6 mcast code makes sure to read dev->mtu once
and applies a sanity check on it (see commit b9b312a7a451
"ipv6: mcast: better catch silly mtu values"), a remaining
possibility is that a layer is able to set dev->mtu to
an underflowed value (high order bit set).
This could happen indeed in ip6gre_tnl_link_config_route(),
ip6_tnl_link_config() and ipip6_tunnel_bind_dev()
Make sure to sanitize mtu value in a local variable before
it is written once on dev->mtu, as lockless readers could
catch wrong temporary value.
[1]
skbuff: skb_over_panic: text:ffff80000b7a2f38 len:40 put:40 head:ffff000149dcf200 data:ffff000149dcf2b0 tail:0xd8 end:0xc0 dev:ip6gretap0
------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:120
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 10241 Comm: kworker/1:1 Not tainted 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022
Workqueue: mld mld_ifc_work
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : skb_panic+0x4c/0x50 net/core/skbuff.c:116
lr : skb_panic+0x4c/0x50 net/core/skbuff.c:116
sp : ffff800020dd3b60
x29: ffff800020dd3b70 x28: 0000000000000000 x27: ffff00010df2a800
x26: 00000000000000c0 x25: 00000000000000b0 x24: ffff000149dcf200
x23: 00000000000000c0 x22: 00000000000000d8 x21: ffff80000b7a2f38
x20: ffff00014c2f7800 x19: 0000000000000028 x18: 00000000000001a9
x17: 0000000000000000 x16: ffff80000db49158 x15: ffff000113bf1a80
x14: 0000000000000000 x13: 00000000ffffffff x12: ffff000113bf1a80
x11: ff808000081c0d5c x10: 0000000000000000 x9 : 73f125dc5c63ba00
x8 : 73f125dc5c63ba00 x7 : ffff800008161d1c x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : ffff0001fefddcd0 x1 : 0000000100000000 x0 : 0000000000000089
Call trace:
skb_panic+0x4c/0x50 net/core/skbuff.c:116
skb_over_panic net/core/skbuff.c:125 [inline]
skb_put+0xd4/0xdc net/core/skbuff.c:2049
ip6_mc_hdr net/ipv6/mcast.c:1714 [inline]
mld_newpack+0x14c/0x270 net/ipv6/mcast.c:1765
add_grhead net/ipv6/mcast.c:1851 [inline]
add_grec+0xa20/0xae0 net/ipv6/mcast.c:1989
mld_send_cr+0x438/0x5a8 net/ipv6/mcast.c:2115
mld_ifc_work+0x38/0x290 net/ipv6/mcast.c:2653
process_one_work+0x2d8/0x504 kernel/workqueue.c:2289
worker_thread+0x340/0x610 kernel/workqueue.c:2436
kthread+0x12c/0x158 kernel/kthread.c:376
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860
Code: 91011400 aa0803e1 a90027ea 94373093 (d4210000) |
| In the Linux kernel, the following vulnerability has been resolved:
scsi: pm8001: Fix running_req for internal abort commands
Disabling the remote phy for a SATA disk causes a hang:
root@(none)$ more /sys/class/sas_phy/phy-0:0:8/target_port_protocols
sata
root@(none)$ echo 0 > sys/class/sas_phy/phy-0:0:8/enable
root@(none)$ [ 67.855950] sas: ex 500e004aaaaaaa1f phy08 change count has changed
[ 67.920585] sd 0:0:2:0: [sdc] Synchronizing SCSI cache
[ 67.925780] sd 0:0:2:0: [sdc] Synchronize Cache(10) failed: Result: hostbyte=0x04 driverbyte=DRIVER_OK
[ 67.935094] sd 0:0:2:0: [sdc] Stopping disk
[ 67.939305] sd 0:0:2:0: [sdc] Start/Stop Unit failed: Result: hostbyte=0x04 driverbyte=DRIVER_OK
...
[ 123.998998] INFO: task kworker/u192:1:642 blocked for more than 30 seconds.
[ 124.005960] Not tainted 6.0.0-rc1-205202-gf26f8f761e83 #218
[ 124.012049] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 124.019872] task:kworker/u192:1 state:D stack:0 pid: 642 ppid: 2 flags:0x00000008
[ 124.028223] Workqueue: 0000:04:00.0_event_q sas_port_event_worker
[ 124.034319] Call trace:
[ 124.036758] __switch_to+0x128/0x278
[ 124.040333] __schedule+0x434/0xa58
[ 124.043820] schedule+0x94/0x138
[ 124.047045] schedule_timeout+0x2fc/0x368
[ 124.051052] wait_for_completion+0xdc/0x200
[ 124.055234] __flush_workqueue+0x1a8/0x708
[ 124.059328] sas_porte_broadcast_rcvd+0xa8/0xc0
[ 124.063858] sas_port_event_worker+0x60/0x98
[ 124.068126] process_one_work+0x3f8/0x660
[ 124.072134] worker_thread+0x70/0x700
[ 124.075793] kthread+0x1a4/0x1b8
[ 124.079014] ret_from_fork+0x10/0x20
The issue is that the per-device running_req read in
pm8001_dev_gone_notify() never goes to zero and we never make progress.
This is caused by missing accounting for running_req for when an internal
abort command completes.
In commit 2cbbf489778e ("scsi: pm8001: Use libsas internal abort support")
we started to send internal abort commands as a proper sas_task. In this
when we deliver a sas_task to HW the per-device running_req is incremented
in pm8001_queue_command(). However it is never decremented for internal
abort commnds, so decrement in pm8001_mpi_task_abort_resp(). |
| In the Linux kernel, the following vulnerability has been resolved:
thermal: intel: quark_dts: fix error pointer dereference
If alloc_soc_dts() fails, then we can just return. Trying to free
"soc_dts" will lead to an Oops. |
| In the Linux kernel, the following vulnerability has been resolved:
firmware: meson_sm: fix to avoid potential NULL pointer dereference
of_match_device() may fail and returns a NULL pointer.
Fix this by checking the return value of of_match_device. |
| In the Linux kernel, the following vulnerability has been resolved:
fuse: missing copy_finish in fuse-over-io-uring argument copies
Fix a possible reference count leak of payload pages during
fuse argument copies.
[Joanne: simplified error cleanup] |
| 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:
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:
btrfs: release path before inode lookup during the ino lookup ioctl
During the ino lookup ioctl we can end up calling btrfs_iget() to get an
inode reference while we are holding on a root's btree. If btrfs_iget()
needs to lookup the inode from the root's btree, because it's not
currently loaded in memory, then it will need to lock another or the
same path in the same root btree. This may result in a deadlock and
trigger the following lockdep splat:
WARNING: possible circular locking dependency detected
6.5.0-rc7-syzkaller-00004-gf7757129e3de #0 Not tainted
------------------------------------------------------
syz-executor277/5012 is trying to acquire lock:
ffff88802df41710 (btrfs-tree-01){++++}-{3:3}, at: __btrfs_tree_read_lock+0x2f/0x220 fs/btrfs/locking.c:136
but task is already holding lock:
ffff88802df418e8 (btrfs-tree-00){++++}-{3:3}, at: __btrfs_tree_read_lock+0x2f/0x220 fs/btrfs/locking.c:136
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (btrfs-tree-00){++++}-{3:3}:
down_read_nested+0x49/0x2f0 kernel/locking/rwsem.c:1645
__btrfs_tree_read_lock+0x2f/0x220 fs/btrfs/locking.c:136
btrfs_search_slot+0x13a4/0x2f80 fs/btrfs/ctree.c:2302
btrfs_init_root_free_objectid+0x148/0x320 fs/btrfs/disk-io.c:4955
btrfs_init_fs_root fs/btrfs/disk-io.c:1128 [inline]
btrfs_get_root_ref+0x5ae/0xae0 fs/btrfs/disk-io.c:1338
btrfs_get_fs_root fs/btrfs/disk-io.c:1390 [inline]
open_ctree+0x29c8/0x3030 fs/btrfs/disk-io.c:3494
btrfs_fill_super+0x1c7/0x2f0 fs/btrfs/super.c:1154
btrfs_mount_root+0x7e0/0x910 fs/btrfs/super.c:1519
legacy_get_tree+0xef/0x190 fs/fs_context.c:611
vfs_get_tree+0x8c/0x270 fs/super.c:1519
fc_mount fs/namespace.c:1112 [inline]
vfs_kern_mount+0xbc/0x150 fs/namespace.c:1142
btrfs_mount+0x39f/0xb50 fs/btrfs/super.c:1579
legacy_get_tree+0xef/0x190 fs/fs_context.c:611
vfs_get_tree+0x8c/0x270 fs/super.c:1519
do_new_mount+0x28f/0xae0 fs/namespace.c:3335
do_mount fs/namespace.c:3675 [inline]
__do_sys_mount fs/namespace.c:3884 [inline]
__se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3861
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
-> #0 (btrfs-tree-01){++++}-{3:3}:
check_prev_add kernel/locking/lockdep.c:3142 [inline]
check_prevs_add kernel/locking/lockdep.c:3261 [inline]
validate_chain kernel/locking/lockdep.c:3876 [inline]
__lock_acquire+0x39ff/0x7f70 kernel/locking/lockdep.c:5144
lock_acquire+0x1e3/0x520 kernel/locking/lockdep.c:5761
down_read_nested+0x49/0x2f0 kernel/locking/rwsem.c:1645
__btrfs_tree_read_lock+0x2f/0x220 fs/btrfs/locking.c:136
btrfs_tree_read_lock fs/btrfs/locking.c:142 [inline]
btrfs_read_lock_root_node+0x292/0x3c0 fs/btrfs/locking.c:281
btrfs_search_slot_get_root fs/btrfs/ctree.c:1832 [inline]
btrfs_search_slot+0x4ff/0x2f80 fs/btrfs/ctree.c:2154
btrfs_lookup_inode+0xdc/0x480 fs/btrfs/inode-item.c:412
btrfs_read_locked_inode fs/btrfs/inode.c:3892 [inline]
btrfs_iget_path+0x2d9/0x1520 fs/btrfs/inode.c:5716
btrfs_search_path_in_tree_user fs/btrfs/ioctl.c:1961 [inline]
btrfs_ioctl_ino_lookup_user+0x77a/0xf50 fs/btrfs/ioctl.c:2105
btrfs_ioctl+0xb0b/0xd40 fs/btrfs/ioctl.c:4683
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xf8/0x170 fs/ioctl.c:856
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
other info
---truncated--- |
| In the Linux kernel, the following vulnerability has been resolved:
wifi: mac80211: fortify the spinlock against deadlock by interrupt
In the function ieee80211_tx_dequeue() there is a particular locking
sequence:
begin:
spin_lock(&local->queue_stop_reason_lock);
q_stopped = local->queue_stop_reasons[q];
spin_unlock(&local->queue_stop_reason_lock);
However small the chance (increased by ftracetest), an asynchronous
interrupt can occur in between of spin_lock() and spin_unlock(),
and the interrupt routine will attempt to lock the same
&local->queue_stop_reason_lock again.
This will cause a costly reset of the CPU and the wifi device or an
altogether hang in the single CPU and single core scenario.
The only remaining spin_lock(&local->queue_stop_reason_lock) that
did not disable interrupts was patched, which should prevent any
deadlocks on the same CPU/core and the same wifi device.
This is the probable trace of the deadlock:
kernel: ================================
kernel: WARNING: inconsistent lock state
kernel: 6.3.0-rc6-mt-20230401-00001-gf86822a1170f #4 Tainted: G W
kernel: --------------------------------
kernel: inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage.
kernel: kworker/5:0/25656 [HC0[0]:SC0[0]:HE1:SE1] takes:
kernel: ffff9d6190779478 (&local->queue_stop_reason_lock){+.?.}-{2:2}, at: return_to_handler+0x0/0x40
kernel: {IN-SOFTIRQ-W} state was registered at:
kernel: lock_acquire+0xc7/0x2d0
kernel: _raw_spin_lock+0x36/0x50
kernel: ieee80211_tx_dequeue+0xb4/0x1330 [mac80211]
kernel: iwl_mvm_mac_itxq_xmit+0xae/0x210 [iwlmvm]
kernel: iwl_mvm_mac_wake_tx_queue+0x2d/0xd0 [iwlmvm]
kernel: ieee80211_queue_skb+0x450/0x730 [mac80211]
kernel: __ieee80211_xmit_fast.constprop.66+0x834/0xa50 [mac80211]
kernel: __ieee80211_subif_start_xmit+0x217/0x530 [mac80211]
kernel: ieee80211_subif_start_xmit+0x60/0x580 [mac80211]
kernel: dev_hard_start_xmit+0xb5/0x260
kernel: __dev_queue_xmit+0xdbe/0x1200
kernel: neigh_resolve_output+0x166/0x260
kernel: ip_finish_output2+0x216/0xb80
kernel: __ip_finish_output+0x2a4/0x4d0
kernel: ip_finish_output+0x2d/0xd0
kernel: ip_output+0x82/0x2b0
kernel: ip_local_out+0xec/0x110
kernel: igmpv3_sendpack+0x5c/0x90
kernel: igmp_ifc_timer_expire+0x26e/0x4e0
kernel: call_timer_fn+0xa5/0x230
kernel: run_timer_softirq+0x27f/0x550
kernel: __do_softirq+0xb4/0x3a4
kernel: irq_exit_rcu+0x9b/0xc0
kernel: sysvec_apic_timer_interrupt+0x80/0xa0
kernel: asm_sysvec_apic_timer_interrupt+0x1f/0x30
kernel: _raw_spin_unlock_irqrestore+0x3f/0x70
kernel: free_to_partial_list+0x3d6/0x590
kernel: __slab_free+0x1b7/0x310
kernel: kmem_cache_free+0x52d/0x550
kernel: putname+0x5d/0x70
kernel: do_sys_openat2+0x1d7/0x310
kernel: do_sys_open+0x51/0x80
kernel: __x64_sys_openat+0x24/0x30
kernel: do_syscall_64+0x5c/0x90
kernel: entry_SYSCALL_64_after_hwframe+0x72/0xdc
kernel: irq event stamp: 5120729
kernel: hardirqs last enabled at (5120729): [<ffffffff9d149936>] trace_graph_return+0xd6/0x120
kernel: hardirqs last disabled at (5120728): [<ffffffff9d149950>] trace_graph_return+0xf0/0x120
kernel: softirqs last enabled at (5069900): [<ffffffff9cf65b60>] return_to_handler+0x0/0x40
kernel: softirqs last disabled at (5067555): [<ffffffff9cf65b60>] return_to_handler+0x0/0x40
kernel:
other info that might help us debug this:
kernel: Possible unsafe locking scenario:
kernel: CPU0
kernel: ----
kernel: lock(&local->queue_stop_reason_lock);
kernel: <Interrupt>
kernel: lock(&local->queue_stop_reason_lock);
kernel:
*** DEADLOCK ***
kernel: 8 locks held by kworker/5:0/25656:
kernel: #0: ffff9d618009d138 ((wq_completion)events_freezable){+.+.}-{0:0}, at: process_one_work+0x1ca/0x530
kernel: #1: ffffb1ef4637fe68 ((work_completion)(&local->restart_work)){+.+.}-{0:0}, at: process_one_work+0x1ce/0x530
kernel: #2: ffffffff9f166548 (rtnl_mutex){+.+.}-{3:3}, at: return_to_handler+0x0/0x40
kernel: #3: ffff9d619
---truncated--- |
| In the Linux kernel, the following vulnerability has been resolved:
ptp_qoriq: fix memory leak in probe()
Smatch complains that:
drivers/ptp/ptp_qoriq.c ptp_qoriq_probe()
warn: 'base' from ioremap() not released.
Fix this by revising the parameter from 'ptp_qoriq->base' to 'base'.
This is only a bug if ptp_qoriq_init() returns on the
first -ENODEV error path.
For other error paths ptp_qoriq->base and base are the same.
And this change makes the code more readable. |
| In the Linux kernel, the following vulnerability has been resolved:
ALSA: wavefront: Fix integer overflow in sample size validation
The wavefront_send_sample() function has an integer overflow issue
when validating sample size. The header->size field is u32 but gets
cast to int for comparison with dev->freemem
Fix by using unsigned comparison to avoid integer overflow. |
| In the Linux kernel, the following vulnerability has been resolved:
macintosh/mac_hid: fix race condition in mac_hid_toggle_emumouse
The following warning appears when running syzkaller, and this issue also
exists in the mainline code.
------------[ cut here ]------------
list_add double add: new=ffffffffa57eee28, prev=ffffffffa57eee28, next=ffffffffa5e63100.
WARNING: CPU: 0 PID: 1491 at lib/list_debug.c:35 __list_add_valid_or_report+0xf7/0x130
Modules linked in:
CPU: 0 PID: 1491 Comm: syz.1.28 Not tainted 6.6.0+ #3
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
RIP: 0010:__list_add_valid_or_report+0xf7/0x130
RSP: 0018:ff1100010dfb7b78 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffffffffa57eee18 RCX: ffffffff97fc9817
RDX: 0000000000040000 RSI: ffa0000002383000 RDI: 0000000000000001
RBP: ffffffffa57eee28 R08: 0000000000000001 R09: ffe21c0021bf6f2c
R10: 0000000000000001 R11: 6464615f7473696c R12: ffffffffa5e63100
R13: ffffffffa57eee28 R14: ffffffffa57eee28 R15: ff1100010dfb7d48
FS: 00007fb14398b640(0000) GS:ff11000119600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000010d096005 CR4: 0000000000773ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 80000000
Call Trace:
<TASK>
input_register_handler+0xb3/0x210
mac_hid_start_emulation+0x1c5/0x290
mac_hid_toggle_emumouse+0x20a/0x240
proc_sys_call_handler+0x4c2/0x6e0
new_sync_write+0x1b1/0x2d0
vfs_write+0x709/0x950
ksys_write+0x12a/0x250
do_syscall_64+0x5a/0x110
entry_SYSCALL_64_after_hwframe+0x78/0xe2
The WARNING occurs when two processes concurrently write to the mac-hid
emulation sysctl, causing a race condition in mac_hid_toggle_emumouse().
Both processes read old_val=0, then both try to register the input handler,
leading to a double list_add of the same handler.
CPU0 CPU1
------------------------- -------------------------
vfs_write() //write 1 vfs_write() //write 1
proc_sys_write() proc_sys_write()
mac_hid_toggle_emumouse() mac_hid_toggle_emumouse()
old_val = *valp // old_val=0
old_val = *valp // old_val=0
mutex_lock_killable()
proc_dointvec() // *valp=1
mac_hid_start_emulation()
input_register_handler()
mutex_unlock()
mutex_lock_killable()
proc_dointvec()
mac_hid_start_emulation()
input_register_handler() //Trigger Warning
mutex_unlock()
Fix this by moving the old_val read inside the mutex lock region. |
| In the Linux kernel, the following vulnerability has been resolved:
btrfs: don't log conflicting inode if it's a dir moved in the current transaction
We can't log a conflicting inode if it's a directory and it was moved
from one parent directory to another parent directory in the current
transaction, as this can result an attempt to have a directory with
two hard links during log replay, one for the old parent directory and
another for the new parent directory.
The following scenario triggers that issue:
1) We have directories "dir1" and "dir2" created in a past transaction.
Directory "dir1" has inode A as its parent directory;
2) We move "dir1" to some other directory;
3) We create a file with the name "dir1" in directory inode A;
4) We fsync the new file. This results in logging the inode of the new file
and the inode for the directory "dir1" that was previously moved in the
current transaction. So the log tree has the INODE_REF item for the
new location of "dir1";
5) We move the new file to some other directory. This results in updating
the log tree to included the new INODE_REF for the new location of the
file and removes the INODE_REF for the old location. This happens
during the rename when we call btrfs_log_new_name();
6) We fsync the file, and that persists the log tree changes done in the
previous step (btrfs_log_new_name() only updates the log tree in
memory);
7) We have a power failure;
8) Next time the fs is mounted, log replay happens and when processing
the inode for directory "dir1" we find a new INODE_REF and add that
link, but we don't remove the old link of the inode since we have
not logged the old parent directory of the directory inode "dir1".
As a result after log replay finishes when we trigger writeback of the
subvolume tree's extent buffers, the tree check will detect that we have
a directory a hard link count of 2 and we get a mount failure.
The errors and stack traces reported in dmesg/syslog are like this:
[ 3845.729764] BTRFS info (device dm-0): start tree-log replay
[ 3845.730304] page: refcount:3 mapcount:0 mapping:000000005c8a3027 index:0x1d00 pfn:0x11510c
[ 3845.731236] memcg:ffff9264c02f4e00
[ 3845.731751] aops:btree_aops [btrfs] ino:1
[ 3845.732300] flags: 0x17fffc00000400a(uptodate|private|writeback|node=0|zone=2|lastcpupid=0x1ffff)
[ 3845.733346] raw: 017fffc00000400a 0000000000000000 dead000000000122 ffff9264d978aea8
[ 3845.734265] raw: 0000000000001d00 ffff92650e6d4738 00000003ffffffff ffff9264c02f4e00
[ 3845.735305] page dumped because: eb page dump
[ 3845.735981] BTRFS critical (device dm-0): corrupt leaf: root=5 block=30408704 slot=6 ino=257, invalid nlink: has 2 expect no more than 1 for dir
[ 3845.737786] BTRFS info (device dm-0): leaf 30408704 gen 10 total ptrs 17 free space 14881 owner 5
[ 3845.737789] BTRFS info (device dm-0): refs 4 lock_owner 0 current 30701
[ 3845.737792] item 0 key (256 INODE_ITEM 0) itemoff 16123 itemsize 160
[ 3845.737794] inode generation 3 transid 9 size 16 nbytes 16384
[ 3845.737795] block group 0 mode 40755 links 1 uid 0 gid 0
[ 3845.737797] rdev 0 sequence 2 flags 0x0
[ 3845.737798] atime 1764259517.0
[ 3845.737800] ctime 1764259517.572889464
[ 3845.737801] mtime 1764259517.572889464
[ 3845.737802] otime 1764259517.0
[ 3845.737803] item 1 key (256 INODE_REF 256) itemoff 16111 itemsize 12
[ 3845.737805] index 0 name_len 2
[ 3845.737807] item 2 key (256 DIR_ITEM 2363071922) itemoff 16077 itemsize 34
[ 3845.737808] location key (257 1 0) type 2
[ 3845.737810] transid 9 data_len 0 name_len 4
[ 3845.737811] item 3 key (256 DIR_ITEM 2676584006) itemoff 16043 itemsize 34
[ 3845.737813] location key (258 1 0) type 2
[ 3845.737814] transid 9 data_len 0 name_len 4
[ 3845.737815] item 4 key (256 DIR_INDEX 2) itemoff 16009 itemsize 34
[ 3845.737816] location key (257 1 0) type 2
[
---truncated--- |
| In the Linux kernel, the following vulnerability has been resolved:
blk-mq: fix potential deadlock while nr_requests grown
Allocate and free sched_tags while queue is freezed can deadlock[1],
this is a long term problem, hence allocate memory before freezing
queue and free memory after queue is unfreezed.
[1] https://lore.kernel.org/all/0659ea8d-a463-47c8-9180-43c719e106eb@linux.ibm.com/ |
| In the Linux kernel, the following vulnerability has been resolved:
pwm: berlin: Fix wrong register in suspend/resume
The 'enable' register should be BERLIN_PWM_EN rather than
BERLIN_PWM_ENABLE, otherwise, the driver accesses wrong address, there
will be cpu exception then kernel panic during suspend/resume. |
| 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:
iommufd: Make sure to zero vfio_iommu_type1_info before copying to user
Missed a zero initialization here. Most of the struct is filled with
a copy_from_user(), however minsz for that copy is smaller than the
actual struct by 8 bytes, thus we don't fill the padding. |
