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In the Linux kernel, the following vulnerability has been resolved:
drm/gma500: Fix BUG: sleeping function called from invalid context errors
gma_crtc_page_flip() was holding the event_lock spinlock while calling crtc_funcs->mode_set_base() which takes ww_mutex.
The only reason to hold event_lock is to clear gma_crtc->page_flip_event on mode_set_base() errors.
Instead unlock it after setting gma_crtc->page_flip_event and on errors re-take the lock and clear gma_crtc->page_flip_event it it is still set.
This fixes the following WARN/stacktrace:
[ 512.122953] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:870 [ 512.123004] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 1253, name: gnome-shell [ 512.123031] preempt_count: 1, expected: 0 [ 512.123048] RCU nest depth: 0, expected: 0 [ 512.123066] INFO: lockdep is turned off. [ 512.123080] irq event stamp: 0 [ 512.123094] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [ 512.123134] hardirqs last disabled at (0): [<ffffffff8d0ec28c>] copy_process+0x9fc/0x1de0 [ 512.123176] softirqs last enabled at (0): [<ffffffff8d0ec28c>] copy_process+0x9fc/0x1de0 [ 512.123207] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 512.123233] Preemption disabled at: [ 512.123241] [<0000000000000000>] 0x0 [ 512.123275] CPU: 3 PID: 1253 Comm: gnome-shell Tainted: G W 5.19.0+ #1 [ 512.123304] Hardware name: Packard Bell dot s/SJE01_CT, BIOS V1.10 07/23/2013 [ 512.123323] Call Trace: [ 512.123346] <TASK> [ 512.123370] dump_stack_lvl+0x5b/0x77 [ 512.123412] __might_resched.cold+0xff/0x13a [ 512.123458] ww_mutex_lock+0x1e/0xa0 [ 512.123495] psb_gem_pin+0x2c/0x150 [gma500_gfx] [ 512.123601] gma_pipe_set_base+0x76/0x240 [gma500_gfx] [ 512.123708] gma_crtc_page_flip+0x95/0x130 [gma500_gfx] [ 512.123808] drm_mode_page_flip_ioctl+0x57d/0x5d0 [ 512.123897] ? drm_mode_cursor2_ioctl+0x10/0x10 [ 512.123936] drm_ioctl_kernel+0xa1/0x150 [ 512.123984] drm_ioctl+0x21f/0x420 [ 512.124025] ? drm_mode_cursor2_ioctl+0x10/0x10 [ 512.124070] ? rcu_read_lock_bh_held+0xb/0x60 [ 512.124104] ? lock_release+0x1ef/0x2d0 [ 512.124161] __x64_sys_ioctl+0x8d/0xd0 [ 512.124203] do_syscall_64+0x58/0x80 [ 512.124239] ? do_syscall_64+0x67/0x80 [ 512.124267] ? trace_hardirqs_on_prepare+0x55/0xe0 [ 512.124300] ? do_syscall_64+0x67/0x80 [ 512.124340] ? rcu_read_lock_sched_held+0x10/0x80 [ 512.124377] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 512.124411] RIP: 0033:0x7fcc4a70740f [ 512.124442] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 18 48 8b 44 24 18 64 48 2b 04 25 28 00 00 [ 512.124470] RSP: 002b:00007ffda73f5390 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 512.124503] RAX: ffffffffffffffda RBX: 000055cc9e474500 RCX: 00007fcc4a70740f [ 512.124524] RDX: 00007ffda73f5420 RSI: 00000000c01864b0 RDI: 0000000000000009 [ 512.124544] RBP: 00007ffda73f5420 R08: 000055cc9c0b0cb0 R09: 0000000000000034 [ 512.124564] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000c01864b0 [ 512.124584] R13: 0000000000000009 R14: 000055cc9df484d0 R15: 000055cc9af5d0c0 [ 512.124647] </TASK>
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 30, 2024 | Apr 28, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Apr 28, 2024 |
| Suse | — | Upgrade dtb-alteraUpgrade kernel-azure-develUpgrade kernel-rt_debug-livepatch-develUpgrade dtb-allwinnerUpgrade kselftests-kmp-64kbUpgrade kernel-64kb-extraUpgrade dtb-amdUpgrade kernel-64kb-optionalUpgrade kernel-azure-extraUpgrade dtb-exynosUpgrade gfs2-kmp-rtUpgrade dtb-marvellUpgrade kernel-obs-buildUpgrade kernel-rt-optionalUpgrade reiserfs-kmp-64kbUpgrade cluster-md-kmp-azureUpgrade ocfs2-kmp-defaultUpgrade dtb-broadcomUpgrade kernel-debug-develUpgrade gfs2-kmp-azureUpgrade kernel-64kbUpgrade kernel-syms-azureUpgrade dtb-freescaleUpgrade kernel-devel-azureUpgrade kernel-azure-optionalUpgrade ocfs2-kmp-azureUpgrade dtb-sprdUpgrade dtb-lgUpgrade kernel-default-livepatchUpgrade kernel-zfcpdumpUpgrade ocfs2-kmp-64kbUpgrade kernel-64kb-livepatch-develUpgrade kselftests-kmp-azureUpgrade kernel-source-vanillaUpgrade kernel-source-rtUpgrade kernel-source-azureUpgrade dtb-amazonUpgrade kernel-default-develUpgrade dtb-caviumUpgrade dlm-kmp-64kbUpgrade kernel-rt_debugUpgrade kernel-docs-htmlUpgrade gfs2-kmp-64kbUpgrade dtb-appleUpgrade kernel-sourceUpgrade kernel-rt_debug-develUpgrade kernel-default-vdsoUpgrade kernel-rt-extraUpgrade kernel-rt-vdsoUpgrade gfs2-kmp-defaultUpgrade kernel-azureUpgrade dtb-hisiliconUpgrade kernel-debug-vdsoUpgrade kernel-kvmsmall-develUpgrade kernel-kvmsmall-vdsoUpgrade kernel-kvmsmall-livepatch-develUpgrade dtb-nvidiaUpgrade reiserfs-kmp-rtUpgrade kselftests-kmp-defaultUpgrade kernel-default-optionalUpgrade kernel-default-baseUpgrade cluster-md-kmp-defaultUpgrade kernel-default-extraUpgrade kernel-rtUpgrade dtb-renesasUpgrade kernel-develUpgrade kernel-debug-livepatch-develUpgrade kernel-debugUpgrade reiserfs-kmp-defaultUpgrade ocfs2-kmp-rtUpgrade kernel-docsUpgrade cluster-md-kmp-64kbUpgrade kernel-defaultUpgrade kernel-64kb-develUpgrade kernel-default-livepatch-develUpgrade kernel-rt-develUpgrade dlm-kmp-azureUpgrade kernel-macrosUpgrade dtb-qcomUpgrade kernel-obs-qaUpgrade kernel-kvmsmallUpgrade dtb-socionextUpgrade dtb-armUpgrade kernel-azure-vdsoUpgrade dlm-kmp-defaultUpgrade dtb-xilinxUpgrade reiserfs-kmp-azureUpgrade kernel-symsUpgrade kernel-azure-livepatch-develUpgrade kselftests-kmp-rtUpgrade kernel-devel-rtUpgrade dtb-rockchipUpgrade dtb-apmUpgrade cluster-md-kmp-rtUpgrade kernel-rt-livepatch-develUpgrade kernel-rt-livepatchUpgrade dtb-amlogicUpgrade kernel-rt_debug-vdsoUpgrade dlm-kmp-rtUpgrade kernel-default-base-rebuildUpgrade dtb-mediatekUpgrade kernel-syms-rt | Aug 9, 2024 | Apr 28, 2024 |
| Ubuntu | — | Upgrade linux-azureUpgrade linux-raspiUpgrade linux-lowlatencyUpgrade linux-gkeUpgrade linux-riscv-5.15Upgrade linuxUpgrade linux-intel-iotgUpgrade linux-nvidiaUpgrade linux-oracle-5.15Upgrade linux-aws-5.15Upgrade linux-realtimeUpgrade linux-gcp-5.15Upgrade linux-azure-fdeUpgrade linux-lowlatency-hwe-5.15Upgrade linux-hwe-5.15Upgrade linux-gkeopUpgrade linux-gkeop-5.15Upgrade linux-awsUpgrade linux-ibmUpgrade linux-oracleUpgrade linux-gcpUpgrade linux-intel-iotg-5.15Upgrade linux-kvmUpgrade linux-azure-5.15 | Nov 19, 2024 | Apr 28, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Apr 28, 2024 |
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