* [Bug 219595] New: Warning at fs/inode.c:1277
@ 2024-12-12 7:33 bugzilla-daemon
0 siblings, 0 replies; only message in thread
From: bugzilla-daemon @ 2024-12-12 7:33 UTC (permalink / raw)
To: linux-ext4
https://bugzilla.kernel.org/show_bug.cgi?id=219595
Bug ID: 219595
Summary: Warning at fs/inode.c:1277
Product: File System
Version: 2.5
Hardware: All
OS: Linux
Status: NEW
Severity: normal
Priority: P3
Component: ext4
Assignee: fs_ext4@kernel-bugs.osdl.org
Reporter: 0599jiangyc@gmail.com
Regression: No
PoC:
```
// autogenerated by syzkaller (https://github.com/google/syzkaller)
#define _GNU_SOURCE
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <setjmp.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>
#include <linux/loop.h>
#ifndef __NR_io_uring_setup
#define __NR_io_uring_setup 425
#endif
#ifndef __NR_memfd_create
#define __NR_memfd_create 319
#endif
static unsigned long long procid;
static bool write_file(const char* file, const char* what, ...)
{
char buf[1024];
va_list args;
va_start(args, what);
vsnprintf(buf, sizeof(buf), what, args);
va_end(args);
buf[sizeof(buf) - 1] = 0;
int len = strlen(buf);
int fd = open(file, O_WRONLY | O_CLOEXEC);
if (fd == -1)
return false;
if (write(fd, buf, len) != len) {
int err = errno;
close(fd);
errno = err;
return false;
}
close(fd);
return true;
}
#define SIZEOF_IO_URING_SQE 64
#define SIZEOF_IO_URING_CQE 16
#define SQ_HEAD_OFFSET 0
#define SQ_TAIL_OFFSET 64
#define SQ_RING_MASK_OFFSET 256
#define SQ_RING_ENTRIES_OFFSET 264
#define SQ_FLAGS_OFFSET 276
#define SQ_DROPPED_OFFSET 272
#define CQ_HEAD_OFFSET 128
#define CQ_TAIL_OFFSET 192
#define CQ_RING_MASK_OFFSET 260
#define CQ_RING_ENTRIES_OFFSET 268
#define CQ_RING_OVERFLOW_OFFSET 284
#define CQ_FLAGS_OFFSET 280
#define CQ_CQES_OFFSET 320
struct io_sqring_offsets {
uint32_t head;
uint32_t tail;
uint32_t ring_mask;
uint32_t ring_entries;
uint32_t flags;
uint32_t dropped;
uint32_t array;
uint32_t resv1;
uint64_t resv2;
};
struct io_cqring_offsets {
uint32_t head;
uint32_t tail;
uint32_t ring_mask;
uint32_t ring_entries;
uint32_t overflow;
uint32_t cqes;
uint64_t resv[2];
};
struct io_uring_params {
uint32_t sq_entries;
uint32_t cq_entries;
uint32_t flags;
uint32_t sq_thread_cpu;
uint32_t sq_thread_idle;
uint32_t features;
uint32_t resv[4];
struct io_sqring_offsets sq_off;
struct io_cqring_offsets cq_off;
};
#define IORING_OFF_SQ_RING 0
#define IORING_OFF_SQES 0x10000000ULL
#define IORING_SETUP_SQE128 (1U << 10)
#define IORING_SETUP_CQE32 (1U << 11)
static long syz_io_uring_setup(volatile long a0, volatile long a1,
volatile long a2, volatile long a3)
{
uint32_t entries = (uint32_t)a0;
struct io_uring_params* setup_params = (struct io_uring_params*)a1;
void** ring_ptr_out = (void**)a2;
void** sqes_ptr_out = (void**)a3;
setup_params->flags &= ~(IORING_SETUP_CQE32 | IORING_SETUP_SQE128);
uint32_t fd_io_uring = syscall(__NR_io_uring_setup, entries, setup_params);
uint32_t sq_ring_sz =
setup_params->sq_off.array + setup_params->sq_entries * sizeof(uint32_t);
uint32_t cq_ring_sz = setup_params->cq_off.cqes +
setup_params->cq_entries * SIZEOF_IO_URING_CQE;
uint32_t ring_sz = sq_ring_sz > cq_ring_sz ? sq_ring_sz : cq_ring_sz;
*ring_ptr_out =
mmap(0, ring_sz, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE,
fd_io_uring, IORING_OFF_SQ_RING);
uint32_t sqes_sz = setup_params->sq_entries * SIZEOF_IO_URING_SQE;
*sqes_ptr_out = mmap(0, sqes_sz, PROT_READ | PROT_WRITE,
MAP_SHARED | MAP_POPULATE, fd_io_uring,
IORING_OFF_SQES);
uint32_t* array =
(uint32_t*)((uintptr_t)*ring_ptr_out + setup_params->sq_off.array);
for (uint32_t index = 0; index < entries; index++)
array[index] = index;
return fd_io_uring;
}
//% This code is derived from puff.{c,h}, found in the zlib development. The
//% original files come with the following copyright notice:
//% Copyright (C) 2002-2013 Mark Adler, all rights reserved
//% version 2.3, 21 Jan 2013
//% This software is provided 'as-is', without any express or implied
//% warranty. In no event will the author be held liable for any damages
//% arising from the use of this software.
//% Permission is granted to anyone to use this software for any purpose,
//% including commercial applications, and to alter it and redistribute it
//% freely, subject to the following restrictions:
//% 1. The origin of this software must not be misrepresented; you must not
//% claim that you wrote the original software. If you use this software
//% in a product, an acknowledgment in the product documentation would be
//% appreciated but is not required.
//% 2. Altered source versions must be plainly marked as such, and must not be
//% misrepresented as being the original software.
//% 3. This notice may not be removed or altered from any source distribution.
//% Mark Adler madler@alumni.caltech.edu
//% BEGIN CODE DERIVED FROM puff.{c,h}
#define MAXBITS 15
#define MAXLCODES 286
#define MAXDCODES 30
#define MAXCODES (MAXLCODES + MAXDCODES)
#define FIXLCODES 288
struct puff_state {
unsigned char* out;
unsigned long outlen;
unsigned long outcnt;
const unsigned char* in;
unsigned long inlen;
unsigned long incnt;
int bitbuf;
int bitcnt;
jmp_buf env;
};
static int puff_bits(struct puff_state* s, int need)
{
long val = s->bitbuf;
while (s->bitcnt < need) {
if (s->incnt == s->inlen)
longjmp(s->env, 1);
val |= (long)(s->in[s->incnt++]) << s->bitcnt;
s->bitcnt += 8;
}
s->bitbuf = (int)(val >> need);
s->bitcnt -= need;
return (int)(val & ((1L << need) - 1));
}
static int puff_stored(struct puff_state* s)
{
s->bitbuf = 0;
s->bitcnt = 0;
if (s->incnt + 4 > s->inlen)
return 2;
unsigned len = s->in[s->incnt++];
len |= s->in[s->incnt++] << 8;
if (s->in[s->incnt++] != (~len & 0xff) ||
s->in[s->incnt++] != ((~len >> 8) & 0xff))
return -2;
if (s->incnt + len > s->inlen)
return 2;
if (s->outcnt + len > s->outlen)
return 1;
for (; len--; s->outcnt++, s->incnt++) {
if (s->in[s->incnt])
s->out[s->outcnt] = s->in[s->incnt];
}
return 0;
}
struct puff_huffman {
short* count;
short* symbol;
};
static int puff_decode(struct puff_state* s, const struct puff_huffman* h)
{
int first = 0;
int index = 0;
int bitbuf = s->bitbuf;
int left = s->bitcnt;
int code = first = index = 0;
int len = 1;
short* next = h->count + 1;
while (1) {
while (left--) {
code |= bitbuf & 1;
bitbuf >>= 1;
int count = *next++;
if (code - count < first) {
s->bitbuf = bitbuf;
s->bitcnt = (s->bitcnt - len) & 7;
return h->symbol[index + (code - first)];
}
index += count;
first += count;
first <<= 1;
code <<= 1;
len++;
}
left = (MAXBITS + 1) - len;
if (left == 0)
break;
if (s->incnt == s->inlen)
longjmp(s->env, 1);
bitbuf = s->in[s->incnt++];
if (left > 8)
left = 8;
}
return -10;
}
static int puff_construct(struct puff_huffman* h, const short* length, int n)
{
int len;
for (len = 0; len <= MAXBITS; len++)
h->count[len] = 0;
int symbol;
for (symbol = 0; symbol < n; symbol++)
(h->count[length[symbol]])++;
if (h->count[0] == n)
return 0;
int left = 1;
for (len = 1; len <= MAXBITS; len++) {
left <<= 1;
left -= h->count[len];
if (left < 0)
return left;
}
short offs[MAXBITS + 1];
offs[1] = 0;
for (len = 1; len < MAXBITS; len++)
offs[len + 1] = offs[len] + h->count[len];
for (symbol = 0; symbol < n; symbol++)
if (length[symbol] != 0)
h->symbol[offs[length[symbol]]++] = symbol;
return left;
}
static int puff_codes(struct puff_state* s, const struct puff_huffman* lencode,
const struct puff_huffman* distcode)
{
static const short lens[29] = {3, 4, 5, 6, 7, 8, 9, 10, 11, 13,
15, 17, 19, 23, 27, 31, 35, 43, 51, 59,
67, 83, 99, 115, 131, 163, 195, 227, 258};
static const short lext[29] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2,
2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0};
static const short dists[30] = {
1, 2, 3, 4, 5, 7, 9, 13, 17, 25,
33, 49, 65, 97, 129, 193, 257, 385, 513, 769,
1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577};
static const short dext[30] = {0, 0, 0, 0, 1, 1, 2, 2, 3, 3,
4, 4, 5, 5, 6, 6, 7, 7, 8, 8,
9, 9, 10, 10, 11, 11, 12, 12, 13, 13};
int symbol;
do {
symbol = puff_decode(s, lencode);
if (symbol < 0)
return symbol;
if (symbol < 256) {
if (s->outcnt == s->outlen)
return 1;
if (symbol)
s->out[s->outcnt] = symbol;
s->outcnt++;
} else if (symbol > 256) {
symbol -= 257;
if (symbol >= 29)
return -10;
int len = lens[symbol] + puff_bits(s, lext[symbol]);
symbol = puff_decode(s, distcode);
if (symbol < 0)
return symbol;
unsigned dist = dists[symbol] + puff_bits(s, dext[symbol]);
if (dist > s->outcnt)
return -11;
if (s->outcnt + len > s->outlen)
return 1;
while (len--) {
if (dist <= s->outcnt && s->out[s->outcnt - dist])
s->out[s->outcnt] = s->out[s->outcnt - dist];
s->outcnt++;
}
}
} while (symbol != 256);
return 0;
}
static int puff_fixed(struct puff_state* s)
{
static int virgin = 1;
static short lencnt[MAXBITS + 1], lensym[FIXLCODES];
static short distcnt[MAXBITS + 1], distsym[MAXDCODES];
static struct puff_huffman lencode, distcode;
if (virgin) {
lencode.count = lencnt;
lencode.symbol = lensym;
distcode.count = distcnt;
distcode.symbol = distsym;
short lengths[FIXLCODES];
int symbol;
for (symbol = 0; symbol < 144; symbol++)
lengths[symbol] = 8;
for (; symbol < 256; symbol++)
lengths[symbol] = 9;
for (; symbol < 280; symbol++)
lengths[symbol] = 7;
for (; symbol < FIXLCODES; symbol++)
lengths[symbol] = 8;
puff_construct(&lencode, lengths, FIXLCODES);
for (symbol = 0; symbol < MAXDCODES; symbol++)
lengths[symbol] = 5;
puff_construct(&distcode, lengths, MAXDCODES);
virgin = 0;
}
return puff_codes(s, &lencode, &distcode);
}
static int puff_dynamic(struct puff_state* s)
{
static const short order[19] = {16, 17, 18, 0, 8, 7, 9, 6, 10, 5,
11, 4, 12, 3, 13, 2, 14, 1, 15};
int nlen = puff_bits(s, 5) + 257;
int ndist = puff_bits(s, 5) + 1;
int ncode = puff_bits(s, 4) + 4;
if (nlen > MAXLCODES || ndist > MAXDCODES)
return -3;
short lengths[MAXCODES];
int index;
for (index = 0; index < ncode; index++)
lengths[order[index]] = puff_bits(s, 3);
for (; index < 19; index++)
lengths[order[index]] = 0;
short lencnt[MAXBITS + 1], lensym[MAXLCODES];
struct puff_huffman lencode = {lencnt, lensym};
int err = puff_construct(&lencode, lengths, 19);
if (err != 0)
return -4;
index = 0;
while (index < nlen + ndist) {
int symbol;
int len;
symbol = puff_decode(s, &lencode);
if (symbol < 0)
return symbol;
if (symbol < 16)
lengths[index++] = symbol;
else {
len = 0;
if (symbol == 16) {
if (index == 0)
return -5;
len = lengths[index - 1];
symbol = 3 + puff_bits(s, 2);
} else if (symbol == 17)
symbol = 3 + puff_bits(s, 3);
else
symbol = 11 + puff_bits(s, 7);
if (index + symbol > nlen + ndist)
return -6;
while (symbol--)
lengths[index++] = len;
}
}
if (lengths[256] == 0)
return -9;
err = puff_construct(&lencode, lengths, nlen);
if (err && (err < 0 || nlen != lencode.count[0] + lencode.count[1]))
return -7;
short distcnt[MAXBITS + 1], distsym[MAXDCODES];
struct puff_huffman distcode = {distcnt, distsym};
err = puff_construct(&distcode, lengths + nlen, ndist);
if (err && (err < 0 || ndist != distcode.count[0] + distcode.count[1]))
return -8;
return puff_codes(s, &lencode, &distcode);
}
static int puff(unsigned char* dest, unsigned long* destlen,
const unsigned char* source, unsigned long sourcelen)
{
struct puff_state s = {
.out = dest,
.outlen = *destlen,
.outcnt = 0,
.in = source,
.inlen = sourcelen,
.incnt = 0,
.bitbuf = 0,
.bitcnt = 0,
};
int err;
if (setjmp(s.env) != 0)
err = 2;
else {
int last;
do {
last = puff_bits(&s, 1);
int type = puff_bits(&s, 2);
err = type == 0 ? puff_stored(&s)
: (type == 1 ? puff_fixed(&s)
: (type == 2 ? puff_dynamic(&s) : -1));
if (err != 0)
break;
} while (!last);
}
*destlen = s.outcnt;
return err;
}
//% END CODE DERIVED FROM puff.{c,h}
#define ZLIB_HEADER_WIDTH 2
static int puff_zlib_to_file(const unsigned char* source,
unsigned long sourcelen, int dest_fd)
{
if (sourcelen < ZLIB_HEADER_WIDTH)
return 0;
source += ZLIB_HEADER_WIDTH;
sourcelen -= ZLIB_HEADER_WIDTH;
const unsigned long max_destlen = 132 << 20;
void* ret = mmap(0, max_destlen, PROT_WRITE | PROT_READ,
MAP_PRIVATE | MAP_ANON, -1, 0);
if (ret == MAP_FAILED)
return -1;
unsigned char* dest = (unsigned char*)ret;
unsigned long destlen = max_destlen;
int err = puff(dest, &destlen, source, sourcelen);
if (err) {
munmap(dest, max_destlen);
errno = -err;
return -1;
}
if (write(dest_fd, dest, destlen) != (ssize_t)destlen) {
munmap(dest, max_destlen);
return -1;
}
return munmap(dest, max_destlen);
}
static int setup_loop_device(unsigned char* data, unsigned long size,
const char* loopname, int* loopfd_p)
{
int err = 0, loopfd = -1;
int memfd = syscall(__NR_memfd_create, "syzkaller", 0);
if (memfd == -1) {
err = errno;
goto error;
}
if (puff_zlib_to_file(data, size, memfd)) {
err = errno;
goto error_close_memfd;
}
loopfd = open(loopname, O_RDWR);
if (loopfd == -1) {
err = errno;
goto error_close_memfd;
}
if (ioctl(loopfd, LOOP_SET_FD, memfd)) {
if (errno != EBUSY) {
err = errno;
goto error_close_loop;
}
ioctl(loopfd, LOOP_CLR_FD, 0);
usleep(1000);
if (ioctl(loopfd, LOOP_SET_FD, memfd)) {
err = errno;
goto error_close_loop;
}
}
close(memfd);
*loopfd_p = loopfd;
return 0;
error_close_loop:
close(loopfd);
error_close_memfd:
close(memfd);
error:
errno = err;
return -1;
}
static void reset_loop_device(const char* loopname)
{
int loopfd = open(loopname, O_RDWR);
if (loopfd == -1) {
return;
}
if (ioctl(loopfd, LOOP_CLR_FD, 0)) {
}
close(loopfd);
}
static long syz_mount_image(volatile long fsarg, volatile long dir,
volatile long flags, volatile long optsarg,
volatile long change_dir,
volatile unsigned long size, volatile long image)
{
unsigned char* data = (unsigned char*)image;
int res = -1, err = 0, need_loop_device = !!size;
char* mount_opts = (char*)optsarg;
char* target = (char*)dir;
char* fs = (char*)fsarg;
char* source = NULL;
char loopname[64];
if (need_loop_device) {
int loopfd;
memset(loopname, 0, sizeof(loopname));
snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid);
if (setup_loop_device(data, size, loopname, &loopfd) == -1)
return -1;
close(loopfd);
source = loopname;
}
mkdir(target, 0777);
char opts[256];
memset(opts, 0, sizeof(opts));
if (strlen(mount_opts) > (sizeof(opts) - 32)) {
}
strncpy(opts, mount_opts, sizeof(opts) - 32);
if (strcmp(fs, "iso9660") == 0) {
flags |= MS_RDONLY;
} else if (strncmp(fs, "ext", 3) == 0) {
bool has_remount_ro = false;
char* remount_ro_start = strstr(opts, "errors=remount-ro");
if (remount_ro_start != NULL) {
char after = *(remount_ro_start + strlen("errors=remount-ro"));
char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1);
has_remount_ro = ((before == '\0' || before == ',') &&
(after == '\0' || after == ','));
}
if (strstr(opts, "errors=panic") || !has_remount_ro)
strcat(opts, ",errors=continue");
} else if (strcmp(fs, "xfs") == 0) {
strcat(opts, ",nouuid");
}
res = mount(source, target, fs, flags, opts);
if (res == -1) {
err = errno;
goto error_clear_loop;
}
res = open(target, O_RDONLY | O_DIRECTORY);
if (res == -1) {
err = errno;
goto error_clear_loop;
}
if (change_dir) {
res = chdir(target);
if (res == -1) {
err = errno;
}
}
error_clear_loop:
if (need_loop_device)
reset_loop_device(loopname);
errno = err;
return res;
}
static int inject_fault(int nth)
{
int fd;
fd = open("/proc/thread-self/fail-nth", O_RDWR);
if (fd == -1)
exit(1);
char buf[16];
sprintf(buf, "%d", nth);
if (write(fd, buf, strlen(buf)) != (ssize_t)strlen(buf))
exit(1);
return fd;
}
static const char* setup_fault()
{
int fd = open("/proc/self/make-it-fail", O_WRONLY);
if (fd == -1)
return "CONFIG_FAULT_INJECTION is not enabled";
close(fd);
fd = open("/proc/thread-self/fail-nth", O_WRONLY);
if (fd == -1)
return "kernel does not have systematic fault injection support";
close(fd);
static struct {
const char* file;
const char* val;
bool fatal;
} files[] = {
{"/sys/kernel/debug/failslab/ignore-gfp-wait", "N", true},
{"/sys/kernel/debug/fail_futex/ignore-private", "N", false},
{"/sys/kernel/debug/fail_page_alloc/ignore-gfp-highmem", "N", false},
{"/sys/kernel/debug/fail_page_alloc/ignore-gfp-wait", "N", false},
{"/sys/kernel/debug/fail_page_alloc/min-order", "0", false},
};
unsigned i;
for (i = 0; i < sizeof(files) / sizeof(files[0]); i++) {
if (!write_file(files[i].file, files[i].val)) {
if (files[i].fatal)
return "failed to write fault injection file";
}
}
return NULL;
}
uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff};
int main(void)
{
syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
/*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
/*offset=*/0ul);
syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul,
/*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
/*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
/*offset=*/0ul);
syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
/*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
/*offset=*/0ul);
const char* reason;
(void)reason;
if ((reason = setup_fault()))
printf("the reproducer may not work as expected: fault injection setup "
"failed: %s\n",
reason);
intptr_t res = 0;
if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
}
memcpy((void*)0x20000080, "ext3\000", 5);
memcpy((void*)0x20000480, "./file0\000", 8);
memcpy((void*)0x20000140, "jqfmt=vfsold", 12);
*(uint8_t*)0x2000014c = 0x2c;
memcpy((void*)0x2000014d, "resgid", 6);
*(uint8_t*)0x20000153 = 0x3d;
sprintf((char*)0x20000154, "0x%016llx", (long long)0xee00);
*(uint8_t*)0x20000166 = 0x2c;
memcpy((void*)0x20000167, "bh", 2);
*(uint8_t*)0x20000169 = 0x2c;
memcpy((void*)0x2000016a, "noload", 6);
*(uint8_t*)0x20000170 = 0x2c;
memcpy((void*)0x20000171, "data_err=ignore", 15);
*(uint8_t*)0x20000180 = 0x2c;
memcpy((void*)0x20000181, "usrjquota=", 10);
*(uint8_t*)0x2000018b = 0x2c;
*(uint8_t*)0x2000018c = 0;
memcpy(
(void*)0x200004c0,
"\x78\x9c\xec\xdc\xcb\x6f\x1b\x45\x18\x00\xf0\x6f\xed\x24\x7d\x93\x50\xca"
"\xa3\xa5\x85\x40\x41\x44\x3c\x92\x26\x7d\xd0\x03\x17\x10\x48\x1c\x40\x42"
"\x82\x43\x11\xa7\x90\xa4\x55\xa8\xdb\xa0\x26\x48\xb4\x8a\x20\x70\x08\x47"
"\x54\x89\x3b\xe2\x88\xc4\x5f\xc0\x09\x2e\x08\x38\x21\x71\x85\x3b\xaa\x54"
"\xa1\x5c\x5a\x38\x19\xad\xbd\x9b\xba\x89\x9d\xc6\x89\x53\x97\xec\xef\x27"
"\x6d\x3b\xe3\x1d\x6b\xe6\xdb\xdd\xb1\x67\x67\xbc\x09\xa0\xb0\x06\xd3\x7f"
"\x92\x88\xbd\x11\xf1\x47\x44\xf4\xd7\xb3\xb7\x17\x18\xac\xff\x77\x73\x69"
"\x7e\xe2\x9f\xa5\xf9\x89\x24\xaa\xd5\xb7\xff\x4e\x6a\xe5\x6e\x2c\xcd\x4f"
"\xe4\x45\xf3\xf7\xed\xa9\x67\xaa\xd5\x2c\xbf\xa3\x49\xbd\x8b\xef\x45\x8c"
"\x57\x2a\x53\x97\xb2\xfc\xc8\xdc\x85\x0f\x47\x66\x2f\x5f\x79\x61\xfa\xc2"
"\xf8\xb9\xa9\x73\x53\x17\xc7\x4e\x9f\x3e\x71\xfc\x48\xdf\xa9\xb1\x93\x1d"
"\x89\x33\x8d\xeb\xc6\xa1\x4f\x66\x0e\x1f\x7c\xfd\xdd\xab\x6f\x4e\x9c\xb9"
"\xfa\xfe\x2f\xdf\xa5\xed\xdd\x9b\xed\x6f\x8c\xa3\x53\x06\xeb\x47\xb7\xa9"
"\xa7\x3b\x5d\x59\x97\xed\x6b\x48\x27\x3d\x5d\x6c\x08\x6d\x29\x47\x44\x7a"
"\xba\x7a\x6b\xfd\xbf\x3f\xca\xb1\x6b\x79\x5f\x7f\xbc\xf6\x79\x57\x1b\x07"
"\x6c\xa9\x6a\xb5\x5a\x6d\xf6\xfd\x9c\x59\xa8\x02\xdb\x58\x12\xdd\x6e\x01"
"\xd0\x1d\xf9\x17\x7d\x7a\xff\x9b\x6f\x77\x69\xe8\x71\x4f\xb8\xfe\x72\xfd"
"\x06\x28\x8d\xfb\x66\xb6\xd5\xf7\xf4\x44\x29\x2b\xd3\xbb\xe2\xfe\xb6\x93"
"\x06\x23\xe2\xcc\xc2\xbf\x5f\xa7\x5b\x6c\xd1\x3c\x04\x00\x40\xa3\x1f\xd2"
"\xf1\xcf\xf3\xcd\xc6\x7f\xa5\x78\xa8\xa1\xdc\x7d\xd9\x1a\xca\x40\x44\xdc"
"\x1f\x11\xfb\x23\xe2\x81\x88\x38\x10\x11\x0f\x46\xd4\xca\x3e\x1c\x11\x8f"
"\xb4\x59\xff\xca\x15\x92\xd5\xe3\x9f\xd2\xb5\x0d\x05\xb6\x4e\xe9\xf8\xef"
"\xa5\x6c\x6d\xeb\xf6\xf1\x5f\x3e\xfa\x8b\x81\x72\x96\xdb\x57\x8b\xbf\x37"
"\x39\x3b\x5d\x99\x3a\x96\x1d\x93\xa1\xe8\xdd\x91\xe6\x47\xd7\xa8\xe3\xc7"
"\x57\x7f\xff\xb2\xd5\xbe\xc6\xf1\x5f\xba\xa5\xf5\xe7\x63\xc1\xac\x1d\xd7"
"\x7a\x56\x4c\xd0\x4d\x8e\xcf\x8d\x6f\x26\xe6\x46\xd7\x3f\x8b\x38\xd4\xd3"
"\x2c\xfe\x24\xf2\x65\x9c\x24\x22\x0e\x46\xc4\xa1\x0d\xd6\x31\xfd\xec\xb7"
"\x87\x5b\xed\xbb\x73\xfc\x6b\xe8\xc0\x3a\x53\xf5\x9b\x88\x67\xea\xe7\x7f"
"\x21\x56\xc4\x9f\x4b\x5a\xae\x4f\x8e\xbe\x78\x6a\xec\xe4\xc8\xce\xa8\x4c"
"\x1d\x1b\xc9\xaf\x8a\xd5\x7e\xfd\x6d\xf1\xad\x56\xf5\x6f\x2a\xfe\x0e\x48"
"\xcf\xff\xee\xa6\xd7\xff\x72\xfc\x03\xc9\xce\x88\xd9\xcb\x57\xce\xd7\xd6"
"\x6b\x67\xdb\xaf\x63\xf1\xcf\x2f\x5a\xde\xd3\x6c\xf4\xfa\xef\x4b\xde\xa9"
"\xa5\xfb\xb2\xd7\x3e\x1e\x9f\x9b\xbb\x34\x1a\xd1\x97\xbc\xb1\xfa\xf5\xb1"
"\x5b\xef\xcd\xf3\x79\xf9\x34\xfe\xa1\xa3\xcd\xfb\xff\xfe\xb8\x75\x24\x1e"
"\x8d\x88\xf4\x22\x3e\x12\x11\x8f\x45\xc4\xe3\x59\xdb\x9f\x88\x88\x27\x23"
"\xe2\xe8\x1a\xf1\xff\xfc\xca\x53\x1f\xb4\x1f\xff\x1a\xb3\xf2\x1d\x94\xc6"
"\x3f\x79\xa7\xf3\x1f\x8d\xe7\xbf\xfd\x44\xf9\xfc\x4f\xdf\xb7\x1f\x7f\x2e"
"\x3d\xff\x27\x6a\xa9\xa1\xec\x95\xf5\x7c\xfe\xad\xb7\x81\x9b\x39\x76\x00"
"\x00\x00\xf0\x7f\x51\xaa\xfd\x06\x3e\x29\x0d\x2f\xa7\x4b\xa5\xe1\xe1\xfa"
"\x6f\xf8\x0f\xc4\xee\x52\x65\x66\x76\xee\xb9\xb3\x33\x1f\x5d\x9c\xac\xff"
"\x56\x7e\x20\x7a\x4b\xf9\x4c\x57\x7f\xc3\x7c\xe8\x68\x36\x37\x9c\xe7\xc7"
"\x56\xe4\x8f\x67\xf3\xc6\x5f\x95\x77\xd5\xf2\xc3\x13\x33\x95\xc9\x6e\x07"
"\x0f\x05\xb7\xa7\x45\xff\x4f\xfd\x55\xee\x76\xeb\x80\x2d\xe7\x79\x2d\x28"
"\x2e\xfd\x1f\x8a\x4b\xff\x87\xe2\xd2\xff\xa1\xb8\xf4\x7f\x28\xae\x66\xfd"
"\xff\xd3\x2e\xb4\x03\xb8\xfb\x7c\xff\x43\x71\xe9\xff\x50\x5c\xfa\x3f\x14"
"\x97\xfe\x0f\x85\xd4\xf2\xd9\xf8\xd2\xa6\x1e\xf9\x97\xd8\xf6\x89\x28\xdd"
"\x13\xcd\xd8\xfe\x89\x9e\x75\xff\x31\x8b\x0d\x26\x76\x34\xdd\xd5\xed\x4f"
"\x26\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\xce\xf8\x2f\x00\x00"
"\xff\xff\x70\x88\xe4\x87",
1086);
syz_mount_image(
/*fs=*/0x20000080, /*dir=*/0x20000480,
/*flags=MS_I_VERSION|MS_SLAVE|MS_PRIVATE|MS_POSIXACL|MS_RELATIME|MS_NOSUID|0xc0400004*/
0xc0ed0006, /*opts=*/0x20000140, /*chdir=*/0xfe, /*size=*/0x43e,
/*img=*/0x200004c0);
memcpy((void*)0x20000340, "./bus\000", 6);
res = syscall(__NR_creat, /*file=*/0x20000340ul, /*mode=*/0ul);
if (res != -1)
r[0] = res;
memcpy((void*)0x20001280, "/dev/loop", 9);
*(uint8_t*)0x20001289 = 0x30;
*(uint8_t*)0x2000128a = 0;
memcpy((void*)0x20000000, "./bus\000", 6);
syscall(__NR_mount, /*src=*/0x20001280ul, /*dst=*/0x20000000ul, /*type=*/0ul,
/*flags=MS_BIND*/ 0x1000ul, /*data=*/0ul);
memcpy((void*)0x20000080, "./bus\000", 6);
res = syscall(__NR_open, /*file=*/0x20000080ul,
/*flags=O_SYNC|O_NOCTTY|O_DIRECT|O_CLOEXEC|O_RDWR*/ 0x185102ul,
/*mode=*/0ul);
if (res != -1)
r[1] = res;
syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0xb36000ul,
/*prot=PROT_WRITE*/ 2ul,
/*flags=MAP_STACK|MAP_POPULATE|MAP_FIXED|MAP_SHARED*/ 0x28011ul,
/*fd=*/r[1], /*offset=*/0ul);
*(uint64_t*)0x20000900 = 0x200001c0;
*(uint64_t*)0x200001c0 = 0;
*(uint32_t*)0x200001c8 = 0;
*(uint32_t*)0x200001cc = 0;
*(uint16_t*)0x200001d0 = 0;
*(uint16_t*)0x200001d2 = 0;
*(uint32_t*)0x200001d4 = -1;
*(uint64_t*)0x200001d8 = 0x200012c0;
memcpy(
(void*)0x200012c0,
"\xe4\xe3\x1b\x1b\x51\x29\xdd\xae\x0b\xef\x73\xd1\x99\x36\x95\xf3\x21\xc5"
"\x8e\x75\x7c\x45\xec\x11\xef\x95\x1b\xc6\x24\x06\xc2\xe9\xc9\x2d\xac\x5a"
"\x3d\xb3\x3e\xf0\x16\x3b\xcd\x24\xf2\x92\xe3\xee\xaa\x51\x68\xa2\x54\x3f"
"\x08\x68\x01\x91\x4b\xc0\xc6\x8e\x74\x87\xb0\xa5\x25\xd0\x3b\x25\xbf\xeb"
"\xdd\x6d\xf5\x1c\xc0\x14\x7f\x2a\xb0\xcf\x6b\xfa\x4c\x41\x06\x53\x49\x10"
"\xa0\xce\x0d\xaa\x53\xfb\xc1\x94\xe4\xc2\xc9\x8e\xe1\x13\xdf\x84\x99\x95"
"\x3d\x53\xd8\x47\x42\x5c\x06\x4e\xe2\x7c\xb0\xb9\xb6\xa3\x5c\x92\x4b\xae"
"\x75\x37\x3c\xd2\xed\xb6\x3c\x1f\x41\xcd\x1e\x19\x34\x0f\xab\x19\xe0\xeb"
"\xb8\x8a\x0a\x0a\xc6\x4c\x28\x54\xd0\xff\xf4\xd6\x77\xb8\x6e\x5b\x0a\x38"
"\x26\x8c\x41\x87\x7c\xc7\xef\x25\xcc\x31\x98\x98\xef\x10\x6c\x12\x54\xdd"
"\x34\xda\x07\x7a\x58\xd4\xab\x71\x75\xf8\x53\xb5\x4c\xee\xfe\x42\xe4\x07"
"\xa5\xe4\x9a\xe9\x2c\x29\x43\xa3\xb0\x30\x97\xa8\xbc\x26\x0c\x5a\x6a\x8c"
"\x86\xc6\xe3\xc6\x89\xbb\xe0\xe0\x9a\x4e\x6a\x70\x59\x70\xb9\xba\x03\x55"
"\x83\x64\xf8\x4e\xad\x50\x8e\x90\xf1\xc8\x2d\xd4\x39\x53\xb9\xf7\xb8\x65"
"\x79\x60\xf6\xc5\xb0\x6f\x3b\xd1\xaf\xe5\x3f\xb5\xa1\x28\xe1\x13\x9a\x09"
"\xee\x78\xb1\x0b\x6d\x60\x0d\xdf\x1e\xd4\x64\x33\x06\x88\xc7\x63\xf4\x4b"
"\x30\xce\x90\x38\x5e\x6f\x56\x35\xcf\x28\x01\x3b\x67\x23\xa4\x0d\xf8\x4d"
"\xd8\x4e\x13\xa0\x50\x0f\x72\x50\x5a\xc0\x2c\x19\x2f\x26\x7d\xd7\x4a\x4a"
"\x63\x40\x6a\xbc\x3c\x0b\x0f\xe6\x1c\x32\xee\xc0\x41\x02\xcb\x3b\x2c\xd9"
"\x51\x45\xa1\xc1\xd7\x7a\x99\x3d\x48\xd5\xb8\x71\x57\x8f\x72\x78\xb3\xaf"
"\x42\x72\xc1\x5c\x55\x01\x4d\x99\xd5\xb2\xf4\x73\xb9\xb5\x1b\xc8\x9c\xb9"
"\xd2\x9b\xea\x24\x2e\xda\xb0\x80\x84\x9a\x95\xed\xdf\x81\x4d\xba\x1c\xc6"
"\x3f\x1e\xd2\xd9\x5d\x52\xb8\x8c\x65\x2d\xf5\xaa\xfd\x2e\x6d\x52\xe3\x34"
"\x63\x2f\xdd\xd5\x0d\xa4\x1f\x76\x66\xff\xed\xde\x3b\xd3\x5d\x41\x5d\x08"
"\xd3\xd5\xd3\x0e\x16\x04\xd7\xf6\x65\xac\x5f\x6d\x34\x76\x20\xa8\xe1\xae"
"\xe1\x66\x24\x90\x50\xa0\x91\x2f\x93\x28\x38\xa1\x6a\x42\x54\x9b\x98\x27"
"\xf4\xa5\x68\xeb\x26\x47\x16\xe0\x94\x55\xde\x73\x1c\x04\x77\xe7\x17\x1c"
"\xe2\xb5\x83\x5d\x9b\x82\x70\x57\x82\x07\x17\xb1\x97\x04\x66\x2e\xad\x7a"
"\x1a\xc1\x16\xef\x1d\xe5\x99\x18\x5b\x92\x49\xdf\x5b\x59\x01\x12\xdd\x4b"
"\xfd\xd1\xaa\xe5\x0f\x4e\x6e\x2e\x5d\x7d\x6a\x68\x79\x47\x40\xc3\x19\xfb"
"\xe9\x27\x6f\x73\x42\xf6\xca\xa4\xf4\xdf\x05\x5a\xf8\xc9\x22\x9e\x76\xef"
"\x68\xe1\x2c\x9e\x24\xf7\x87\xcb\x1a\x05\xfc\x1b\xd7\x2c\xc6\xcb\x8f\x44"
"\x6f\xdd\x9b\x2e\x0b\x5c\x02\x09\x04\x7c\x1d\xdb\x2e\x28\x15\x42\xb4\x60"
"\x52\xd9\xce\xe9\x7b\xbf\x9f\x0e\x08\x4f\x14\x20\x90\xd3\xa3\x5c\x1e\x1c"
"\x65\x0a\x87\x5d\x35\x15\x92\x70\xb0\x2e\x30\x6a\x9b\x47\xe6\xd3\xd4\x5e"
"\x8a\xa2\x45\x5e\x38\xe6\x62\x17\xea\x16\xc6\x81\x0d\x32\x26\xf8\xa5\x31"
"\x03\x69\xdd\xc4\x2e\xcd\x13\xd8\x2c\x18\x23\xd9\xd9\x9e\x55\xe1\x12\x99"
"\x7b\xe2\x55\xb3\xa6\x82\x7f\x83\x23\xf4\xb1\x25\x19\xd2\x17\xf3\x4b\x2e"
"\x67\x62\x5f\x13\xff\x48\xd0\x5a\xe6\x25\xc9\xb0\x0f\x8e\xac\x49\x7d\xb0"
"\x3c\x1e\x9d\xb8\x98\x9c\x9d\xf8\x17\xb7\x7a\xfe\x41\x9c\xc0\x0d\xbd\x63"
"\x04\xe8\xfc\xc4\xe2\xd5\x49\x06\x43\xee\xc2\xde\xd7\xad\xd8\xa7\x14\x42"
"\x52\xd5\x46\x35\x72\x87\x04\x5b\x56\xc2\xfa\x74\x41\x96\xfe\x27\x0e\x3e"
"\x34\x3f\x70\xb3\xb4\x78\x33\x12\x3b\xdf\xb3\x8c\x3f\x3d\x3e\xd9\x8c\xe2"
"\xf5\x9d\xa0\xe7\xf2\xae\x88\x0d\xf6\x05\x2a\xaf\x6f\x7d\xba\x63\xd3\x5a"
"\xe6\x89\xbc\x72\xc9\xfe\x9a\x5c\x3d\x6d\x70\x42\x84\x10\x4d\x13\x30\x6c"
"\xed\x5d\x9f\x99\x58\x06\x1c\xfe\x1d\xd7\xff\x5f\x6b\x8b\x20\xdb\x90\xab"
"\x59\x56\xcf\x02\x2f\x97\x0e\x7d\x68\x40\x85\x1e\x5b\x7f\x7f\xd0\x7b\x73"
"\x1b\x1e\xd4\x61\xa5\xc9\x03\x44\xaf\xbb\x00\xbc\xe1\x96\x3c\x24\xee\xc6"
"\xb2\xf0\x32\x02\xbf\x0e\x9f\x1c\xe8\x81\x21\xa2\x58\x02\x99\x42\xde\x11"
"\xbc\x2c\xfb\x84\xde\xeb\x90\x3b\x9d\x5a\xd4\xa5\x7a\x61\x38\x2c\x7f\x44"
"\x42\x2b\x94\x59\xcb\x46\x99\xa0\x09\x07\x24\xe3\x64\x9f\xcf\x20\xd2\x76"
"\x08\x17\x82\x5e\x2a\x0a\xde\x5d\xf3\x90\xaf\x76\x63\x86\x19\x44\x5a\x91"
"\xed\x21\x80\x98\x15\x43\x74\xe7\x85\x4a\xbf\x50\xcd\x03\x6a\xba\x93\xee"
"\x6d\xe5\x6c\xaf\x38\x17\x84\x56\xd7\x43\xd2\x9a\xd5\x0c\x22\xd1\xea\x01"
"\x4b\xca\x4a\x12\xd1\x92\x2b\x51\x52\xb8\xc0\xb4\x70\x4d\x9a\x2c\xc1\xee"
"\xe8\x6e\xe4\x89\x83\x92\xb2\xc1\x56\x97\xc1\x5f\xb5\x01\xfd\xaa\x87\x36"
"\xfa\xcd\xce\xb7\x02\x3c\xdf\x70\xb5\x72\xad\x39\xf7\x5d\xa4\x1e\x6c\x0b"
"\xcc\x2d\xb5\x9a\x3e\x5e\x92\xf0\x4b\x90\x54\x98\xe7\x86\x61\x12\x4c\x54"
"\xde\x63\xd9\x5b\x4a\xff\x54\x27\x24\xa9\xb5\xd7\xb3\x0c\x16\x94\x0d\x0b"
"\x03\x64\x8a\x7a\xb1\xf4\x14\x34\x40\xee\xf8\xd5\x94\x64\xe8\xed\xfb\x74"
"\x5b\x47\x4d\x82\xb2\x7d\x0c\x75\x0b\x93\xe6\x34\xf3\xe1\x14\xef\xe8\xbb"
"\x5d\x01\x03\xdb\x5e\xe7\xb4\xc7\x9c\x74\xac\x16\xbb\xa0\xdf\x71\x6e\x9d"
"\xb5\x14\x8c\x77\xb0\x1e\x41\x01\x22\x04\x56\x8d\x07\xfe\x8e\x8c\x7c\x4c"
"\x73\x5c\xf5\x0f\x6e\x9c\x6a\x38\x55\xdf\xe0\x02\x7d\x0a\xca\xc8\x75\xdb"
"\x38\xa8\xb6\xb1\x0b\x00\xde\xd7\xb4\xb2\xd9\x13\x49\x3c\x86\xa7\xff\x5c"
"\x24\x07\x0f\x5d\x30\x90\x75\xa3\x73\x5f\x6c\x99\x4b\x94\xc1\x00\xcd\xdb"
"\x7c\xd5\x80\x0c\x93\x9f\x39\x58\x32\xf4\x9f\xa8\xf1\x02\x50\x32\x70\x95"
"\x04\xfa\x9f\xf5\x71\x94\xb8\xa5\x17\x18\x43\xa4\x67\x24\x5b\x54\x60\x9f"
"\xd0\x26\x5f\x1e\x13\x9d\x1a\xd3\x5e\x6b\x2a\xac\xa2\x5c\x3d\x1a\x6a\x5b"
"\xb8\x4d\x19\x36\xe1\x10\x93\xde\xc4\x51\x4a\xf7\xea\xc3\x1e\x4e\x12\xc8"
"\xf9\xd4\xc7\x14\x87\x08\x62\x5d\x30\x07\xa3\x68\x30\x3c\x42\x0a\xb4\xa3"
"\x2c\x06\xba\x1e\xc1\x80\xdd\x1c\x0e\xf7\x64\x01\xa1\x14\x9b\x56\x71\xa3"
"\x66\x3d\x66\xb3\x52\x7f\x4a\x4e\xec\x3e\x39\xc8\x40\x90\xb7\x85\x3e\xfa"
"\xaf\xea\x4c\xf5\x1b\x54\x59\x8b\x9c\x15\x34\xe2\x0d\xba\xc0\xb0\xd1\xf9"
"\x6a\x57\x11\x47\x53\x4c\x58\x89\xa2\xed\xdc\x54\x30\x4a",
1346);
*(uint64_t*)0x200001e0 = 0x542;
*(uint64_t*)0x200001e8 = 0;
*(uint64_t*)0x200001f0 = 0;
*(uint32_t*)0x200001f8 = 0;
*(uint32_t*)0x200001fc = -1;
syscall(__NR_io_submit, /*ctx=*/0ul, /*nr=*/1ul, /*iocbpp=*/0x20000900ul);
syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x6611, /*arg=*/0ul);
*(uint32_t*)0x20000004 = 0;
*(uint32_t*)0x20000008 = 0;
*(uint32_t*)0x2000000c = 0;
*(uint32_t*)0x20000010 = 0;
*(uint32_t*)0x20000018 = -1;
memset((void*)0x2000001c, 0, 12);
syz_io_uring_setup(/*entries=*/0x6928, /*params=*/0x20000000,
/*ring_ptr=*/0x20ff0000, /*sqes_ptr=*/0x20ffb000);
*(uint32_t*)0x20000004 = 0;
*(uint32_t*)0x20000008 = 0;
*(uint32_t*)0x2000000c = 0;
*(uint32_t*)0x20000010 = 0;
*(uint32_t*)0x20000018 = -1;
memset((void*)0x2000001c, 0, 12);
inject_fault(34);
syz_io_uring_setup(/*entries=*/0x2e, /*params=*/0x20000000,
/*ring_ptr=*/0x20ff8000, /*sqes_ptr=*/0x20ff7000);
return 0;
}
```
[ 133.784678] loop0: detected capacity change from 0 to 512
[ 133.787379] EXT4-fs: Ignoring removed bh option
[ 133.787605] EXT4-fs (loop0): mounting ext3 file system using the ext4
subsystem
[ 133.788280] EXT4-fs (loop0): 1 truncate cleaned up
[ 133.788502] EXT4-fs (loop0): mounted filesystem
00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
[ 133.789171] ------------[ cut here ]------------
[ 133.789313] WARNING: CPU: 1 PID: 317 at fs/inode.c:1277
lock_two_nondirectories+0xb8/0xe0
[ 133.789552] Modules linked in:
[ 133.789646] CPU: 1 UID: 0 PID: 317 Comm: fused402987 Not tainted
6.13.0-rc2-00448-g8a3a22f4bd79 #2
[ 133.789899] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
1.13.0-1ubuntu1.1 04/01/2014
[ 133.790163] RIP: 0010:lock_two_nondirectories+0xb8/0xe0
[ 133.790315] Code: cc cc cc 48 85 ed 74 13 48 89 d8 48 89 eb 48 89 c5 eb d3
48 85 ed 74 e4 48 89 eb 48 8d bb 98 00 00 00 5b 5d e9 e9 5f 83 02 90 <0f> 0b 90
eb b2 90 0f 0b 90 48 85 db 0f 85 7b ff ff ff eb da e8 df
[ 133.790835] RSP: 0018:ffff888113a5fc28 EFLAGS: 00010246
[ 133.790991] RAX: 0000000000004000 RBX: ffff888119f12d50 RCX:
1ffff110233e25bc
[ 133.791195] RDX: 1ffff110233e25aa RSI: ffff888119f12d50 RDI:
ffff888119f12868
[ 133.791398] RBP: ffff888119f12868 R08: 00000000ffffffff R09:
ffffffffadb93a20
[ 133.791600] R10: 0000000000000000 R11: ffff8881107bb000 R12:
ffff88811265c200
[ 133.791801] R13: 1ffff1102274bf94 R14: ffff888119f12868 R15:
ffff88810fa47de0
[ 133.792011] FS: 000000002161d880(0000) GS:ffff8881f7280000(0000)
knlGS:0000000000000000
[ 133.792237] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 133.792409] CR2: 0000000000000000 CR3: 0000000102380000 CR4:
00000000000006f0
[ 133.792621] Call Trace:
[ 133.792697] <TASK>
[ 133.792765] ? __warn+0xcc/0x260
[ 133.792867] ? lock_two_nondirectories+0xb8/0xe0
[ 133.793032] ? report_bug+0x30e/0x370
[ 133.793141] ? handle_bug+0x54/0xa0
[ 133.793242] ? exc_invalid_op+0x18/0x50
[ 133.793353] ? asm_exc_invalid_op+0x1a/0x20
[ 133.793483] ? lock_two_nondirectories+0xb8/0xe0
[ 133.793624] __ext4_ioctl+0x10db/0x3c90
[ 133.793743] ? search_extable+0x75/0xa0
[ 133.793861] ? __pfx_search_extable+0x10/0x10
[ 133.794020] ? __pfx___ext4_ioctl+0x10/0x10
[ 133.794149] ? fixup_exception+0x721/0x970
[ 133.794275] ? __pfx_do_vfs_ioctl+0x10/0x10
[ 133.794405] ? kernelmode_fixup_or_oops.isra.0+0x4e/0x90
[ 133.794567] ? exc_page_fault+0x5e/0xc0
[ 133.794687] ? ioctl_has_perm.constprop.0+0x2c6/0x490
[ 133.794840] ? __pfx_ioctl_has_perm.constprop.0+0x10/0x10
[ 133.795028] ? __get_user_nocheck_8+0x20/0x20
[ 133.795162] ? lookup_ioctx+0x40/0x260
[ 133.795278] ? __pfx___x64_sys_io_submit+0x10/0x10
[ 133.795425] ? __x64_sys_ioctl+0x131/0x190
[ 133.795550] ? __pfx_ext4_ioctl+0x10/0x10
[ 133.795673] __x64_sys_ioctl+0x131/0x190
[ 133.795812] do_syscall_64+0xaa/0x1b0
[ 133.795953] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 133.796115] RIP: 0033:0x45846d
[ 133.796218] Code: c3 e8 57 2c 00 00 0f 1f 80 00 00 00 00 f3 0f 1e fa 48 89
f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01
f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
[ 133.796765] RSP: 002b:00007fff55439b58 EFLAGS: 00000286 ORIG_RAX:
0000000000000010
[ 133.797014] RAX: ffffffffffffffda RBX: 0000000000400530 RCX:
000000000045846d
[ 133.797229] RDX: 0000000000000000 RSI: 0000000000006611 RDI:
0000000000000004
[ 133.797432] RBP: 00007fff55439b70 R08: 000000000049c0a0 R09:
000000000049c0a0
[ 133.797637] R10: 00000000200012f0 R11: 0000000000000286 R12:
0000000000404e80
[ 133.797840] R13: 0000000000000000 R14: 00000000004c8018 R15:
0000000000000000
[ 133.798066] </TASK>
[ 133.798133] ---[ end trace 0000000000000000 ]---
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