From: syzbot <syzbot+cae7809e9dc1459e4e63@syzkaller.appspotmail.com>
To: akpm@linux-foundation.org, catalin.marinas@arm.com,
chao@kernel.org, hao.li@linux.dev, harry.yoo@oracle.com,
jaegeuk@kernel.org, jannh@google.com, liam.howlett@oracle.com,
linkinjeon@kernel.org, linux-f2fs-devel@lists.sourceforge.net,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, lorenzo.stoakes@oracle.com,
pfalcato@suse.de, sj1557.seo@samsung.com,
syzkaller-bugs@googlegroups.com, vbabka@kernel.org,
vbabka@suse.cz, wangqing7171@gmail.com
Subject: Re: [f2fs-dev] [syzbot] [mm?] [f2fs?] [exfat?] memory leak in __kfree_rcu_sheaf
Date: Mon, 09 Mar 2026 20:54:03 -0700 [thread overview]
Message-ID: <69af95db.a00a0220.d013.0001.GAE@google.com> (raw)
In-Reply-To: <aa-SinLe2jrtO1pS@hyeyoo>
Hello,
syzbot has tested the proposed patch but the reproducer is still triggering an issue:
memory leak in __pcs_replace_empty_main
BUG: memory leak
unreferenced object 0xffff888100b60200 (size 512):
comm "kthreadd", pid 2, jiffies 4294937343
hex dump (first 32 bytes):
00 6c c3 09 81 88 ff ff 00 9a 9d 0a 81 88 ff ff .l..............
00 16 04 00 81 88 ff ff 00 00 00 00 00 00 00 00 ................
backtrace (crc 8a95531e):
kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
slab_post_alloc_hook mm/slub.c:4552 [inline]
slab_alloc_node mm/slub.c:4874 [inline]
__do_kmalloc_node mm/slub.c:5267 [inline]
__kmalloc_noprof+0x3bd/0x560 mm/slub.c:5280
kmalloc_noprof include/linux/slab.h:954 [inline]
kzalloc_noprof include/linux/slab.h:1188 [inline]
__alloc_empty_sheaf+0x35/0x50 mm/slub.c:2771
alloc_empty_sheaf mm/slub.c:2786 [inline]
alloc_full_sheaf mm/slub.c:2834 [inline]
__pcs_replace_empty_main+0x1d2/0x260 mm/slub.c:4634
alloc_from_pcs mm/slub.c:4725 [inline]
slab_alloc_node mm/slub.c:4859 [inline]
__do_kmalloc_node mm/slub.c:5267 [inline]
__kmalloc_node_noprof+0x57e/0x5d0 mm/slub.c:5274
kmalloc_node_noprof include/linux/slab.h:1081 [inline]
__vmalloc_area_node mm/vmalloc.c:3855 [inline]
__vmalloc_node_range_noprof+0x284/0xe50 mm/vmalloc.c:4064
__vmalloc_node_noprof+0x71/0x90 mm/vmalloc.c:4124
alloc_thread_stack_node kernel/fork.c:355 [inline]
dup_task_struct kernel/fork.c:924 [inline]
copy_process+0x3e5/0x28c0 kernel/fork.c:2050
kernel_clone+0xac/0x6e0 kernel/fork.c:2654
kernel_thread+0x80/0xb0 kernel/fork.c:2715
create_kthread kernel/kthread.c:459 [inline]
kthreadd+0x186/0x250 kernel/kthread.c:817
ret_from_fork+0x23c/0x4b0 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
BUG: memory leak
unreferenced object 0xffff88810438c200 (size 512):
comm "swapper/0", pid 1, jiffies 4294937794
hex dump (first 32 bytes):
00 02 10 0e 81 88 ff ff 00 56 c3 09 81 88 ff ff .........V......
00 17 04 00 81 88 ff ff 3c 00 00 00 00 00 00 00 ........<.......
backtrace (crc 3e1bb722):
kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
slab_post_alloc_hook mm/slub.c:4552 [inline]
slab_alloc_node mm/slub.c:4874 [inline]
__do_kmalloc_node mm/slub.c:5267 [inline]
__kmalloc_noprof+0x3bd/0x560 mm/slub.c:5280
kmalloc_noprof include/linux/slab.h:954 [inline]
kzalloc_noprof include/linux/slab.h:1188 [inline]
__alloc_empty_sheaf+0x35/0x50 mm/slub.c:2771
alloc_empty_sheaf mm/slub.c:2786 [inline]
__pcs_replace_full_main+0xe8/0x300 mm/slub.c:5730
free_to_pcs mm/slub.c:5783 [inline]
slab_free mm/slub.c:6185 [inline]
kfree+0x352/0x390 mm/slub.c:6498
v4l2_ctrl_handler_free drivers/media/v4l2-core/v4l2-ctrls-core.c:1756 [inline]
v4l2_ctrl_handler_free+0x92/0x290 drivers/media/v4l2-core/v4l2-ctrls-core.c:1736
vivid_dev_release+0x26/0x90 drivers/media/test-drivers/vivid/vivid-core.c:857
v4l2_device_release drivers/media/v4l2-core/v4l2-device.c:51 [inline]
kref_put include/linux/kref.h:65 [inline]
v4l2_device_put+0x6b/0xa0 drivers/media/v4l2-core/v4l2-device.c:56
vivid_create_instance drivers/media/test-drivers/vivid/vivid-core.c:2070 [inline]
vivid_probe.cold+0x55a/0x386d drivers/media/test-drivers/vivid/vivid-core.c:2095
platform_probe+0x86/0xf0 drivers/base/platform.c:1446
call_driver_probe drivers/base/dd.c:583 [inline]
really_probe+0x12f/0x3a0 drivers/base/dd.c:661
__driver_probe_device+0xc7/0x160 drivers/base/dd.c:803
driver_probe_device+0x2a/0x120 drivers/base/dd.c:833
__driver_attach drivers/base/dd.c:1227 [inline]
__driver_attach+0x10a/0x200 drivers/base/dd.c:1167
bus_for_each_dev+0xb8/0x120 drivers/base/bus.c:383
bus_add_driver+0x122/0x280 drivers/base/bus.c:715
driver_register+0xb1/0x140 drivers/base/driver.c:249
BUG: memory leak
unreferenced object 0xffff888109c35c00 (size 512):
comm "kworker/0:1", pid 10, jiffies 4294937868
hex dump (first 32 bytes):
00 68 d4 09 81 88 ff ff 00 9c de 09 81 88 ff ff .h..............
00 16 04 00 81 88 ff ff 00 00 00 00 00 00 00 00 ................
backtrace (crc 9ab54a7c):
kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
slab_post_alloc_hook mm/slub.c:4552 [inline]
slab_alloc_node mm/slub.c:4874 [inline]
__do_kmalloc_node mm/slub.c:5267 [inline]
__kmalloc_noprof+0x3bd/0x560 mm/slub.c:5280
kmalloc_noprof include/linux/slab.h:954 [inline]
kzalloc_noprof include/linux/slab.h:1188 [inline]
__alloc_empty_sheaf+0x35/0x50 mm/slub.c:2771
alloc_empty_sheaf mm/slub.c:2786 [inline]
__pcs_replace_full_main+0xe8/0x300 mm/slub.c:5730
free_to_pcs mm/slub.c:5783 [inline]
slab_free mm/slub.c:6185 [inline]
kfree+0x352/0x390 mm/slub.c:6498
vfree.part.0+0x1cd/0x4d0 mm/vmalloc.c:3484
vfree mm/vmalloc.c:3456 [inline]
delayed_vfree_work+0x5b/0x90 mm/vmalloc.c:3398
process_one_work+0x26c/0x5d0 kernel/workqueue.c:3275
process_scheduled_works kernel/workqueue.c:3358 [inline]
worker_thread+0x243/0x490 kernel/workqueue.c:3439
kthread+0x14e/0x1a0 kernel/kthread.c:436
ret_from_fork+0x23c/0x4b0 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
BUG: memory leak
unreferenced object 0xffff88810a9d9a00 (size 512):
comm "swapper/0", pid 1, jiffies 4294937887
hex dump (first 32 bytes):
00 02 b6 00 81 88 ff ff 00 98 9d 0a 81 88 ff ff ................
00 16 04 00 81 88 ff ff 00 00 00 00 00 00 00 00 ................
backtrace (crc 368f6316):
kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
slab_post_alloc_hook mm/slub.c:4552 [inline]
slab_alloc_node mm/slub.c:4874 [inline]
__do_kmalloc_node mm/slub.c:5267 [inline]
__kmalloc_noprof+0x3bd/0x560 mm/slub.c:5280
kmalloc_noprof include/linux/slab.h:954 [inline]
kzalloc_noprof include/linux/slab.h:1188 [inline]
__alloc_empty_sheaf+0x35/0x50 mm/slub.c:2771
alloc_empty_sheaf mm/slub.c:2786 [inline]
__pcs_replace_full_main+0xe8/0x300 mm/slub.c:5730
free_to_pcs mm/slub.c:5783 [inline]
slab_free mm/slub.c:6185 [inline]
kfree+0x352/0x390 mm/slub.c:6498
slab_sysfs_init+0xce/0xf0 mm/slub.c:9613
do_one_initcall+0x79/0x4c0 init/main.c:1382
do_initcall_level init/main.c:1444 [inline]
do_initcalls init/main.c:1460 [inline]
do_basic_setup init/main.c:1479 [inline]
kernel_init_freeable+0x2a4/0x340 init/main.c:1692
kernel_init+0x1b/0x1d0 init/main.c:1582
ret_from_fork+0x23c/0x4b0 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
BUG: memory leak
unreferenced object 0xffff88810a9d9600 (size 512):
comm "swapper/0", pid 1, jiffies 4294937887
hex dump (first 32 bytes):
00 b6 34 0a 81 88 ff ff 00 6c c3 09 81 88 ff ff ..4......l......
00 16 04 00 81 88 ff ff 00 00 00 00 00 00 00 00 ................
backtrace (crc d6fcd7dc):
kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
slab_post_alloc_hook mm/slub.c:4552 [inline]
slab_alloc_node mm/slub.c:4874 [inline]
__do_kmalloc_node mm/slub.c:5267 [inline]
__kmalloc_noprof+0x3bd/0x560 mm/slub.c:5280
kmalloc_noprof include/linux/slab.h:954 [inline]
kzalloc_noprof include/linux/slab.h:1188 [inline]
__alloc_empty_sheaf+0x35/0x50 mm/slub.c:2771
alloc_empty_sheaf mm/slub.c:2786 [inline]
__pcs_replace_full_main+0xe8/0x300 mm/slub.c:5730
free_to_pcs mm/slub.c:5783 [inline]
slab_free mm/slub.c:6185 [inline]
kfree+0x352/0x390 mm/slub.c:6498
slab_sysfs_init+0xce/0xf0 mm/slub.c:9613
do_one_initcall+0x79/0x4c0 init/main.c:1382
do_initcall_level init/main.c:1444 [inline]
do_initcalls init/main.c:1460 [inline]
do_basic_setup init/main.c:1479 [inline]
kernel_init_freeable+0x2a4/0x340 init/main.c:1692
kernel_init+0x1b/0x1d0 init/main.c:1582
ret_from_fork+0x23c/0x4b0 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
connection error: failed to recv *flatrpc.ExecutorMessageRawT: EOF
Tested on:
commit: 1f318b96 Linux 7.0-rc3
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=17bde806580000
kernel config: https://syzkaller.appspot.com/x/.config?x=2c6ad6fefffa76b1
dashboard link: https://syzkaller.appspot.com/bug?extid=cae7809e9dc1459e4e63
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
patch: https://syzkaller.appspot.com/x/patch.diff?x=1065375a580000
_______________________________________________
Linux-f2fs-devel mailing list
Linux-f2fs-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
WARNING: multiple messages have this Message-ID (diff)
From: syzbot <syzbot+cae7809e9dc1459e4e63@syzkaller.appspotmail.com>
To: akpm@linux-foundation.org, catalin.marinas@arm.com,
chao@kernel.org, hao.li@linux.dev, harry.yoo@oracle.com,
jaegeuk@kernel.org, jannh@google.com, liam.howlett@oracle.com,
linkinjeon@kernel.org, linux-f2fs-devel@lists.sourceforge.net,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, lorenzo.stoakes@oracle.com,
pfalcato@suse.de, sj1557.seo@samsung.com,
syzkaller-bugs@googlegroups.com, vbabka@kernel.org,
vbabka@suse.cz, wangqing7171@gmail.com
Subject: Re: [syzbot] [mm?] [f2fs?] [exfat?] memory leak in __kfree_rcu_sheaf
Date: Mon, 09 Mar 2026 20:54:03 -0700 [thread overview]
Message-ID: <69af95db.a00a0220.d013.0001.GAE@google.com> (raw)
In-Reply-To: <aa-SinLe2jrtO1pS@hyeyoo>
Hello,
syzbot has tested the proposed patch but the reproducer is still triggering an issue:
memory leak in __pcs_replace_empty_main
BUG: memory leak
unreferenced object 0xffff888100b60200 (size 512):
comm "kthreadd", pid 2, jiffies 4294937343
hex dump (first 32 bytes):
00 6c c3 09 81 88 ff ff 00 9a 9d 0a 81 88 ff ff .l..............
00 16 04 00 81 88 ff ff 00 00 00 00 00 00 00 00 ................
backtrace (crc 8a95531e):
kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
slab_post_alloc_hook mm/slub.c:4552 [inline]
slab_alloc_node mm/slub.c:4874 [inline]
__do_kmalloc_node mm/slub.c:5267 [inline]
__kmalloc_noprof+0x3bd/0x560 mm/slub.c:5280
kmalloc_noprof include/linux/slab.h:954 [inline]
kzalloc_noprof include/linux/slab.h:1188 [inline]
__alloc_empty_sheaf+0x35/0x50 mm/slub.c:2771
alloc_empty_sheaf mm/slub.c:2786 [inline]
alloc_full_sheaf mm/slub.c:2834 [inline]
__pcs_replace_empty_main+0x1d2/0x260 mm/slub.c:4634
alloc_from_pcs mm/slub.c:4725 [inline]
slab_alloc_node mm/slub.c:4859 [inline]
__do_kmalloc_node mm/slub.c:5267 [inline]
__kmalloc_node_noprof+0x57e/0x5d0 mm/slub.c:5274
kmalloc_node_noprof include/linux/slab.h:1081 [inline]
__vmalloc_area_node mm/vmalloc.c:3855 [inline]
__vmalloc_node_range_noprof+0x284/0xe50 mm/vmalloc.c:4064
__vmalloc_node_noprof+0x71/0x90 mm/vmalloc.c:4124
alloc_thread_stack_node kernel/fork.c:355 [inline]
dup_task_struct kernel/fork.c:924 [inline]
copy_process+0x3e5/0x28c0 kernel/fork.c:2050
kernel_clone+0xac/0x6e0 kernel/fork.c:2654
kernel_thread+0x80/0xb0 kernel/fork.c:2715
create_kthread kernel/kthread.c:459 [inline]
kthreadd+0x186/0x250 kernel/kthread.c:817
ret_from_fork+0x23c/0x4b0 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
BUG: memory leak
unreferenced object 0xffff88810438c200 (size 512):
comm "swapper/0", pid 1, jiffies 4294937794
hex dump (first 32 bytes):
00 02 10 0e 81 88 ff ff 00 56 c3 09 81 88 ff ff .........V......
00 17 04 00 81 88 ff ff 3c 00 00 00 00 00 00 00 ........<.......
backtrace (crc 3e1bb722):
kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
slab_post_alloc_hook mm/slub.c:4552 [inline]
slab_alloc_node mm/slub.c:4874 [inline]
__do_kmalloc_node mm/slub.c:5267 [inline]
__kmalloc_noprof+0x3bd/0x560 mm/slub.c:5280
kmalloc_noprof include/linux/slab.h:954 [inline]
kzalloc_noprof include/linux/slab.h:1188 [inline]
__alloc_empty_sheaf+0x35/0x50 mm/slub.c:2771
alloc_empty_sheaf mm/slub.c:2786 [inline]
__pcs_replace_full_main+0xe8/0x300 mm/slub.c:5730
free_to_pcs mm/slub.c:5783 [inline]
slab_free mm/slub.c:6185 [inline]
kfree+0x352/0x390 mm/slub.c:6498
v4l2_ctrl_handler_free drivers/media/v4l2-core/v4l2-ctrls-core.c:1756 [inline]
v4l2_ctrl_handler_free+0x92/0x290 drivers/media/v4l2-core/v4l2-ctrls-core.c:1736
vivid_dev_release+0x26/0x90 drivers/media/test-drivers/vivid/vivid-core.c:857
v4l2_device_release drivers/media/v4l2-core/v4l2-device.c:51 [inline]
kref_put include/linux/kref.h:65 [inline]
v4l2_device_put+0x6b/0xa0 drivers/media/v4l2-core/v4l2-device.c:56
vivid_create_instance drivers/media/test-drivers/vivid/vivid-core.c:2070 [inline]
vivid_probe.cold+0x55a/0x386d drivers/media/test-drivers/vivid/vivid-core.c:2095
platform_probe+0x86/0xf0 drivers/base/platform.c:1446
call_driver_probe drivers/base/dd.c:583 [inline]
really_probe+0x12f/0x3a0 drivers/base/dd.c:661
__driver_probe_device+0xc7/0x160 drivers/base/dd.c:803
driver_probe_device+0x2a/0x120 drivers/base/dd.c:833
__driver_attach drivers/base/dd.c:1227 [inline]
__driver_attach+0x10a/0x200 drivers/base/dd.c:1167
bus_for_each_dev+0xb8/0x120 drivers/base/bus.c:383
bus_add_driver+0x122/0x280 drivers/base/bus.c:715
driver_register+0xb1/0x140 drivers/base/driver.c:249
BUG: memory leak
unreferenced object 0xffff888109c35c00 (size 512):
comm "kworker/0:1", pid 10, jiffies 4294937868
hex dump (first 32 bytes):
00 68 d4 09 81 88 ff ff 00 9c de 09 81 88 ff ff .h..............
00 16 04 00 81 88 ff ff 00 00 00 00 00 00 00 00 ................
backtrace (crc 9ab54a7c):
kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
slab_post_alloc_hook mm/slub.c:4552 [inline]
slab_alloc_node mm/slub.c:4874 [inline]
__do_kmalloc_node mm/slub.c:5267 [inline]
__kmalloc_noprof+0x3bd/0x560 mm/slub.c:5280
kmalloc_noprof include/linux/slab.h:954 [inline]
kzalloc_noprof include/linux/slab.h:1188 [inline]
__alloc_empty_sheaf+0x35/0x50 mm/slub.c:2771
alloc_empty_sheaf mm/slub.c:2786 [inline]
__pcs_replace_full_main+0xe8/0x300 mm/slub.c:5730
free_to_pcs mm/slub.c:5783 [inline]
slab_free mm/slub.c:6185 [inline]
kfree+0x352/0x390 mm/slub.c:6498
vfree.part.0+0x1cd/0x4d0 mm/vmalloc.c:3484
vfree mm/vmalloc.c:3456 [inline]
delayed_vfree_work+0x5b/0x90 mm/vmalloc.c:3398
process_one_work+0x26c/0x5d0 kernel/workqueue.c:3275
process_scheduled_works kernel/workqueue.c:3358 [inline]
worker_thread+0x243/0x490 kernel/workqueue.c:3439
kthread+0x14e/0x1a0 kernel/kthread.c:436
ret_from_fork+0x23c/0x4b0 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
BUG: memory leak
unreferenced object 0xffff88810a9d9a00 (size 512):
comm "swapper/0", pid 1, jiffies 4294937887
hex dump (first 32 bytes):
00 02 b6 00 81 88 ff ff 00 98 9d 0a 81 88 ff ff ................
00 16 04 00 81 88 ff ff 00 00 00 00 00 00 00 00 ................
backtrace (crc 368f6316):
kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
slab_post_alloc_hook mm/slub.c:4552 [inline]
slab_alloc_node mm/slub.c:4874 [inline]
__do_kmalloc_node mm/slub.c:5267 [inline]
__kmalloc_noprof+0x3bd/0x560 mm/slub.c:5280
kmalloc_noprof include/linux/slab.h:954 [inline]
kzalloc_noprof include/linux/slab.h:1188 [inline]
__alloc_empty_sheaf+0x35/0x50 mm/slub.c:2771
alloc_empty_sheaf mm/slub.c:2786 [inline]
__pcs_replace_full_main+0xe8/0x300 mm/slub.c:5730
free_to_pcs mm/slub.c:5783 [inline]
slab_free mm/slub.c:6185 [inline]
kfree+0x352/0x390 mm/slub.c:6498
slab_sysfs_init+0xce/0xf0 mm/slub.c:9613
do_one_initcall+0x79/0x4c0 init/main.c:1382
do_initcall_level init/main.c:1444 [inline]
do_initcalls init/main.c:1460 [inline]
do_basic_setup init/main.c:1479 [inline]
kernel_init_freeable+0x2a4/0x340 init/main.c:1692
kernel_init+0x1b/0x1d0 init/main.c:1582
ret_from_fork+0x23c/0x4b0 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
BUG: memory leak
unreferenced object 0xffff88810a9d9600 (size 512):
comm "swapper/0", pid 1, jiffies 4294937887
hex dump (first 32 bytes):
00 b6 34 0a 81 88 ff ff 00 6c c3 09 81 88 ff ff ..4......l......
00 16 04 00 81 88 ff ff 00 00 00 00 00 00 00 00 ................
backtrace (crc d6fcd7dc):
kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
slab_post_alloc_hook mm/slub.c:4552 [inline]
slab_alloc_node mm/slub.c:4874 [inline]
__do_kmalloc_node mm/slub.c:5267 [inline]
__kmalloc_noprof+0x3bd/0x560 mm/slub.c:5280
kmalloc_noprof include/linux/slab.h:954 [inline]
kzalloc_noprof include/linux/slab.h:1188 [inline]
__alloc_empty_sheaf+0x35/0x50 mm/slub.c:2771
alloc_empty_sheaf mm/slub.c:2786 [inline]
__pcs_replace_full_main+0xe8/0x300 mm/slub.c:5730
free_to_pcs mm/slub.c:5783 [inline]
slab_free mm/slub.c:6185 [inline]
kfree+0x352/0x390 mm/slub.c:6498
slab_sysfs_init+0xce/0xf0 mm/slub.c:9613
do_one_initcall+0x79/0x4c0 init/main.c:1382
do_initcall_level init/main.c:1444 [inline]
do_initcalls init/main.c:1460 [inline]
do_basic_setup init/main.c:1479 [inline]
kernel_init_freeable+0x2a4/0x340 init/main.c:1692
kernel_init+0x1b/0x1d0 init/main.c:1582
ret_from_fork+0x23c/0x4b0 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
connection error: failed to recv *flatrpc.ExecutorMessageRawT: EOF
Tested on:
commit: 1f318b96 Linux 7.0-rc3
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=17bde806580000
kernel config: https://syzkaller.appspot.com/x/.config?x=2c6ad6fefffa76b1
dashboard link: https://syzkaller.appspot.com/bug?extid=cae7809e9dc1459e4e63
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
patch: https://syzkaller.appspot.com/x/patch.diff?x=1065375a580000
next prev parent reply other threads:[~2026-03-10 3:54 UTC|newest]
Thread overview: 85+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-09 18:26 [f2fs-dev] [syzbot] [mm?] [f2fs?] [exfat?] memory leak in __kfree_rcu_sheaf syzbot
2026-02-09 18:26 ` syzbot
2026-03-02 3:41 ` [f2fs-dev] " Qing Wang
2026-03-02 3:41 ` Qing Wang
2026-03-02 3:57 ` [f2fs-dev] " syzbot
2026-03-02 3:57 ` syzbot
2026-03-02 8:39 ` [f2fs-dev] " Vlastimil Babka (SUSE) via Linux-f2fs-devel
2026-03-02 8:39 ` Vlastimil Babka (SUSE)
2026-03-04 1:30 ` [f2fs-dev] " Harry Yoo via Linux-f2fs-devel
2026-03-04 1:30 ` Harry Yoo
2026-03-04 13:39 ` [f2fs-dev] " Vlastimil Babka (SUSE) via Linux-f2fs-devel
2026-03-04 13:39 ` Vlastimil Babka (SUSE)
2026-03-06 19:35 ` [f2fs-dev] " Catalin Marinas
2026-03-06 19:35 ` Catalin Marinas
2026-03-08 11:02 ` [f2fs-dev] " Catalin Marinas
2026-03-08 11:02 ` Catalin Marinas
2026-03-08 12:31 ` [f2fs-dev] " syzbot
2026-03-08 12:31 ` syzbot
2026-03-08 11:04 ` [f2fs-dev] " Catalin Marinas
2026-03-08 11:04 ` Catalin Marinas
2026-03-08 12:42 ` [f2fs-dev] " syzbot
2026-03-08 12:42 ` syzbot
2026-03-09 10:46 ` [f2fs-dev] " Harry Yoo via Linux-f2fs-devel
2026-03-09 10:46 ` Harry Yoo
2026-03-09 11:11 ` [f2fs-dev] " syzbot
2026-03-09 11:11 ` syzbot
2026-03-09 12:17 ` [f2fs-dev] " Harry Yoo via Linux-f2fs-devel
2026-03-09 12:17 ` Harry Yoo
2026-03-09 20:31 ` [f2fs-dev] " Catalin Marinas
2026-03-09 20:31 ` Catalin Marinas
2026-03-11 3:04 ` [f2fs-dev] " Harry Yoo via Linux-f2fs-devel
2026-03-11 3:04 ` Harry Yoo
2026-03-11 3:20 ` [f2fs-dev] " Harry Yoo via Linux-f2fs-devel
2026-03-11 3:20 ` Harry Yoo
2026-03-10 3:39 ` [f2fs-dev] " Harry Yoo via Linux-f2fs-devel
2026-03-10 3:39 ` Harry Yoo
2026-03-10 3:54 ` syzbot [this message]
2026-03-10 3:54 ` syzbot
2026-03-10 6:11 ` [f2fs-dev] " Harry Yoo via Linux-f2fs-devel
2026-03-10 6:11 ` Harry Yoo
2026-03-10 6:29 ` [f2fs-dev] " syzbot
2026-03-10 6:29 ` syzbot
2026-03-10 8:10 ` [f2fs-dev] " Harry Yoo via Linux-f2fs-devel
2026-03-10 8:10 ` Harry Yoo
2026-03-10 9:40 ` [f2fs-dev] " syzbot
2026-03-10 9:40 ` syzbot
2026-03-18 2:34 ` [f2fs-dev] " Harry Yoo via Linux-f2fs-devel
2026-03-18 2:34 ` Harry Yoo
2026-03-18 3:08 ` [f2fs-dev] " syzbot
2026-03-18 3:08 ` syzbot
2026-03-18 4:10 ` [f2fs-dev] " Harry Yoo via Linux-f2fs-devel
2026-03-18 4:10 ` Harry Yoo
2026-03-18 5:02 ` [f2fs-dev] " syzbot
2026-03-18 5:02 ` syzbot
2026-03-11 9:57 ` [f2fs-dev] " Qing Wang
2026-03-11 9:57 ` Qing Wang
2026-03-11 10:17 ` [f2fs-dev] " syzbot
2026-03-11 10:17 ` syzbot
2026-03-11 10:48 ` [f2fs-dev] " Qing Wang
2026-03-11 10:48 ` Qing Wang
2026-03-11 11:03 ` [f2fs-dev] " syzbot
2026-03-11 11:03 ` syzbot
2026-03-11 11:23 ` [f2fs-dev] " Harry Yoo via Linux-f2fs-devel
2026-03-11 11:23 ` Harry Yoo
2026-03-20 0:06 ` [f2fs-dev] " Harry Yoo via Linux-f2fs-devel
2026-03-20 0:06 ` Harry Yoo
2026-03-20 10:34 ` [f2fs-dev] " syzbot
2026-03-20 10:34 ` syzbot
2026-03-20 11:20 ` [f2fs-dev] " Harry Yoo via Linux-f2fs-devel
2026-03-20 11:20 ` Harry Yoo
2026-05-02 10:09 ` David Timber
2026-05-03 6:00 ` David Timber
2026-05-03 7:17 ` [f2fs-dev] [syzbot] [mm?] [exfat?] [f2fs?] " syzbot
2026-05-03 7:17 ` syzbot
2026-05-03 6:05 ` [syzbot] [mm?] [f2fs?] [exfat?] " David Timber
2026-05-03 7:27 ` [f2fs-dev] [syzbot] [mm?] [exfat?] [f2fs?] " syzbot
2026-05-03 7:27 ` syzbot
2026-05-03 7:41 ` [f2fs-dev] " David Timber via Linux-f2fs-devel
2026-05-03 7:41 ` David Timber
2026-05-04 20:17 ` [syzbot] [mm?] [f2fs?] [exfat?] " David Timber
2026-05-04 20:51 ` [f2fs-dev] [syzbot] [mm?] [exfat?] [f2fs?] " syzbot
2026-05-04 20:51 ` syzbot
2026-05-04 20:26 ` [syzbot] [mm?] [f2fs?] [exfat?] " David Timber
2026-05-04 21:12 ` [f2fs-dev] [syzbot] [mm?] [exfat?] [f2fs?] " syzbot
2026-05-04 21:12 ` syzbot
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=69af95db.a00a0220.d013.0001.GAE@google.com \
--to=syzbot+cae7809e9dc1459e4e63@syzkaller.appspotmail.com \
--cc=akpm@linux-foundation.org \
--cc=catalin.marinas@arm.com \
--cc=chao@kernel.org \
--cc=hao.li@linux.dev \
--cc=harry.yoo@oracle.com \
--cc=jaegeuk@kernel.org \
--cc=jannh@google.com \
--cc=liam.howlett@oracle.com \
--cc=linkinjeon@kernel.org \
--cc=linux-f2fs-devel@lists.sourceforge.net \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=lorenzo.stoakes@oracle.com \
--cc=pfalcato@suse.de \
--cc=sj1557.seo@samsung.com \
--cc=syzkaller-bugs@googlegroups.com \
--cc=vbabka@kernel.org \
--cc=vbabka@suse.cz \
--cc=wangqing7171@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.